Complete Release Notes

V 1.34s, 12 July 2005

• John Lydon has made available a 44 page PDF document with the title "The measurement of the modal mineralogy of rocks from SEM imagery: the use of Multispec and ImageJ freeware".
• Laurent Gelman et al. have made available PixFRET, a plugin for FRET (Fluorescence Resonance Energy Transfer) calculations.
• v1.34r, 8 July 2005
  • Added the imageCalculator() macro function.
  • Added a "Text File" type to Plugins/New.
  • Plugins/New now uses "My_Plugin", "Filter_Plugin" and "Plugin_Frame" as the default plugin names.
  • Fixed a bug that could cause bogus "There are no images open" errors in batch mode macros.
  • Fixed a bug in Plugins/New that caused the generated plugin frame to use a tiny window.
• v1.34q, 1 July 2005
  • The Measure and Histogram commands now use scientific notation to display very small and very large values.
  • File/Import/Text Image opens text format images that use scientific notation.
  • Add a "Global" checkbox to Image/Properties.
  • Added the setMetadata() and getMetadata() macro functions.
  • Clicking outside a selection with the polygon tool no longer starts the creation of a polygon selection.
  • Opening a signed 16-bit image disables global calibration.
  • The "zeroClip" calibration flag is saved in the TIFF header.
  • The File/New "Fill With:" Clipboard option now works correctly with non-rectangular selections.
  • Fixed a bug related to pasting non-rectangular selections into same-sized rectangular selections.
  • Fixed several BMP read/write bugs thanks to sample images and code contributed by Yasunari Tosa.
  • Fixed a bug that could cause Process>Noise>Add Noise and Add Specified Noise to generate biased noise.
  • Fixed a bug that could cause the wand tool to fail with 32-bit images containing NaN pixels.
  • Fixed a bug that could cause 32-bit images containing NaNs to be saved incorrectly.
• Leo Durosemont contributed the Telecran (Etch-a-sketch) macro set, which demonstrates interactive numeric keypad control of macros.
• The ButtonBar example macro set adds six buttons to the ImageJ tool bar.
• Walter O'Dell contributed a plugin that performs template matching for detection of objects in an image
• Sonia Choubrac, Jean-Nicolas Dacher, Michael Dolores and Sylvain Payrouse contributed the MR Urography plugin.
• Pierre Besson has made available a 3D deconvolution plugin.
• Christian Kreutzfeldt has written a collection of macros that allow estimation of molecular weights in electrophoresis gels.
• Fabrice Cordelieres contributed the 3D Objects Counter, Metamorph nd Stack Builder and DeltaVision Opener plugins.
• Gilles Carpentier contributed the Three Channel Fluorescence Image Exploration Tools macro set. Documentation and a sample image are available.
• Gali Baler contributed the PointsToStack macro, which creates a stack of sub-images based on a set of user-adjustable points.
• v1.34p, 10 June 2005
  • Added "Fill with Background Color" options to the Image/Scale and Image/Rotate/Arbitrarily dialogs.
  • Holding down the alt key forces text files to be opened in a TextWindow instead of an Editor window.
  • Holding down alt or shift causes Plugins/Compile and Run to compile using the -g option, which adds debugging information required by symbolic debuggers.
  • The "Exclude on Edges" option in the particle analyzer now works correctly with non-rectangular selections.
  • The getDirectory() macro function returns the path the the users home directory or to the ImageJ directory when called with "home" or "startup".
  • The ColorProcessor.putPixel() method no longer sets the alpha bits.
  • Fixed a bug that could cause BMP images opened in ImageJ to become locked.
  • Fixed a bug with the getDirectory() macro function that could cause ImageJ to hang on Mac OS X 10.4 dual processor systems.
• Joachim Walter contributed a 5D data set (w=256, h=256, ch=2, z=24, t=7) that can be used to test his Image5D plugins.
• Gilles Carpentier contributed the Arrow Maker Tool macro. Examples are at image.bio.methods.free.fr/Arrowsdoc.html.
• Gali Baler has written detailed instructions on how to debug plugins using the NetBeans IDE.
• Ronald Petie contributed the Anaglyph plugin, which uses two photographs, made at different angles, to make a stereo image.
• Joachim Walter contributed the Image5D plugins, which display images that have up to 5 dimensions: x, y, channel (color), slice (z) and frame (t).
• Federico Viel and Vincenzo Della Mea have made available a Microscope Stage Controller plugin.
• The ArrowTool tool draws arrows.
• The Translate macro does image translation.
• Gilles Carpentier contributed the MultiCursorTool macro, which displays multiple synchronized cursors.
• Audrey Karperien and Thomas Roy contibuted the Hull and Circle plugin for finding the convex hull and bounding circle of patterns in binary images.
• v1.34n, 17 May 2005
  • Non-rectangular selections can now be dragged paste the edges of the image.
  • Added the getDateAndTime() macro function.
  • The command recorder correctly records threshold levels of signed 16-bit images.
  • Fixed a bug that prevented filtering of images using the "3-3-2 RGB" LUT.
  • Fixed a bug that caused "Standard Deviation" projections using Image/Stacks/Z Project to fail with some 16-bit stacks.
  • Fixed a bug with Process/Binary/Threshold that caused all slice labels of the output stack to be set to the first slice label of the input stack.
  • Fixed a bug that caused drawn lines to be the same width when the line width was set to both w and w+1.
  • Fixed a bug that caused drawn lines to be positioned incorrectly when the starting coordinates were negative.
  • Fixed a bug that caused batch mode macros doing 90 degree rotations to fail.
  • Fixed a bug that caused the lengthOf() macro function to fail when called with a string array element.
  • Fixed a bug that caused the exit() macro function to fail when called with a variable as an argument.
• The GetDateAndTime macro, contibuted by Bill Heeschen, demonstrates how to display the date and time.
• The ChangeColors macro replaces foreground colors in an image with the background color.
• Jerome Mutterer contibuted the 3Dflight macro, which demonstrates scripting of Kai Barthel's Volume Viewer plugin.
• The BigCursorTool macro simulates a full window cross-hair cursor using a polygon selection.
• The Windows version of ImageJ is now available bundled with Java 5.0, Update 3.
• v1.34m, 29 April 2005
  • Added the Dialog.* macro functions. The DialogDemo macro provides an example.
  • File>Import>Image Sequence opens files without leading zeros in the names in the correct order.
  • The applet version of ImageJ closes non-image windows when quitting.
  • The WindowManager.closeAllWindows() method closes non-image windows.
  • Fixed a bug that sometimes caused signed DICOM images opened using File>Import>Image Sequence to not open correctly.
  • Fixed a bug that caused some filters to fail on images with a paste operation in progress.
  • Fixed a bug that caused Process/Filters/Gaussian Blur to not work correctly if "Normalize Kernel" was not checked in the Process/Filters/Convolve dialog.
  • Fixed a bug that caused Image/Zoom/To Selection to sometimes fail with small selections.
  • Fixed a bug that sometimes caused Image/Type/ commands to fail in batch mode macros.
  • Fixed a bug in Process/FFT/FD Math that caused an exception when "Do Inverse Transform" was not selected in the dialog.
  • Fixed a bug that could cause a syntax error when comparing strings in a macro function.
  • Fixed a bug that caused batch mode macros calling runMacro() or eval() to fail.
• The CalculateMean macro demonstrates how one macro can call another macro and pass it a variable number of numeric values.
• The DeconvolutionDemo macro demonstrates how to use a point spread function (PSF) and frequency domain convolution and deconvolution to blur and de-blur an image.
• On Mac OS X, ImageJ may not run after the 10.3.9 upgrade but a new software update ("Java Update for Mac OS X v10.3.9") is supposed to fix the problem.
• v1.34l, 15 April 2005
  • The "Flood Fill" particle analyzer option enables measurement of nested particles and causes interior holes to be ignored.
  • Added "Skewness" and "Kurtosis" options to the Analyze/Set Measurements dialog.
  • The results table can now contain up to 150 columns.
  • Results table values are stored as doubles (15 digit precision) instead of floats (7 digit precision).
  • Analyze/Measure will display the bounding rectangle of line selections.
  • Faster image display on Java 1.5 (aka 5.0).
  • Images with up to five dimensions (width*height*channels*depth*time) can be defined in the Image/Properties dialog but the rest of ImageJ has not yet been updated to support 4D and 5D images.
  • Thanks to Ulf Dittmer, ImageJ now opens PBM (Portable BitMap) images, where before it would only open PGM (Portable GreyMap) and PPM (Portable PixMap).
  • The applet version of Image will auto-load images. There is an example at rsb.info.nih.gov/ij/applet2/.
  • "Hello World" is no longer automatically added to macro files created using Plugins>New.
  • Fixed a bug that caused incorrect line profile plots of images with non-square pixels.
  • Fixed a bug that caused incorrect wide line profile plots of density calibrated images.
  • Fixed a bug in Image/Stacks/3D Project that caused it to fail if "Rotation Angle Increment" was negative.
  • Fixed a bug that caused File/Save As/AVI to fail when using Java 1.1.
  • Fixed a bug that could cause an exception if there was an error while opening an image in a macro.
  • Fixed a bug in the getDirectory() macro function that resulted in double back slashes with root directories on Windows.
• v1.34k, 1 April 2005
  • Slices labels (e.g., DICOM tags) are saved in the TIFF header.
  • File/Import/Image Sequence improvements: DICOM images are sorted by image number, the folder name is used as the title of the stack, better error messages, and dialog box error messages are redirected to the "Log" window.
  • Image/Image Calculator now names output stacks "Result of <image1>".
  • The print dialog box is not displayed when File/Print is called from a macro.
  • The screen is not updated when setSlice() is used in batch mode macros.
  • The saveAs() macro function displays a file save dialog if the second argument is omitted.
  • Added "count", "select", "deselect" and "reset" options to the roiManager() macro function. For an example, see the ROI Manager Stack Demo macro.
  • Added the setVoxelSize() and getLocationAndSize() macro functions.
  • Added the IJ.redirectErrorMessages() method.
  • Fixed a bug that caused the fill() macro function to fail with non-rectangular selections extending past the image bounds.
• The SortDemo macro demonstrates how to sort an array of numbers or an array of strings.
• Andreas Schleifenbaum contributed the PlotStack macro, which draws a graph in a stack.
• Remi Cathelin and Christophe Klopp contributed plugins for opening/saving images in the ISAC format used by Fuji BAS scanners.
• Ron DeSpain contributed the Max Value Segmentation macro, which demonstrates pixel-by-pixel processing of multiple images.
• The Rotate Image macro rotates images based on the orientation of a straight line selection.
• Dimiter Prodanov contributed the RGB Measure Plus plugin.
• Martin Schlüter contributed the XYZ2DEM Importer plugin, which imports XYZ coordinates from a text file and interpolates a Digital Elevation Model (DEM) image using Delaunay triangulation.
• Michael Doube contributed the VolumeFractionOfBone macro, which measures the volume fraction and mineral density of bone in mineralised tissues.
• v1.34j, 16 March 2005
  • The tool bar can now contain one more tool.
  • Analyze/Histogram works better with float images containing NaNs and +/-Infinity.
  • Thanks to Curtis Rueden, ImageJ opens 16-bit LZW compressed TIFFs.
  • File/Import/Image Sequence no longer displays "Opening: xxx" messages in the status bar.
  • The Mac OS X menu bar is less likely to disappear.
  • Added a flood fill (paint bucket) tool to the DrawingTools macro set.
  • Added the floodFill() macro function.
  • Added the restorePreviousTool() macro function, which allows creation of tools that perform an action when they are clicked or double-clicked. The AboutTool macro is an example of a single-click action tool and the Flood Fill Tool is an example of a double-click action tool.
  • Image/Duplicate no longer deletes the source image's selection.
  • A "plugins.config" file is automatically generated for JAR files that do not contain one.
  • Fixed a bug that caused an exception when using the Plot.show() macro function in batch mode.
  • Fixed a bug in Process/Binary/Threshold that sometimes caused a non-functional scroll bar to appear below the image.
  • Fixed a bug in the doWand() macro function that sometimes caused the previous selection to be restored.
  • Fixed bugs that prevented .zip files and files using HandleExtraFileTypes from opening from the command line.
  • Fixed a bug that caused the median to be calculated incorrectly for float images containing NaNs.
• Per Christian Henden has written Fractal Count, Map Fractal Count, Susan Filtering, Extrude Map and Gaussian Noise plugins.
• David Bright has created tutorial exercises for ImageJ and NIH Image.
• The OpenImagesFromList macro demonstrates how to open images using a text file list.
• Paul Werten contributed the BackgroundCorrectedDensity macro, which calculates background-corrected integrated density.
• The QuickTime Capture plugin now capture multiple frames to a stack and works with Java 1.4.2 on Mac OS X.
• Gilles Carpentier contributed the DisplayTiffInfo macro, which displays the Image Description tag of TIFFs created by programs such MetaMorph.
• Philippe Thévenaz has made available StackReg, a plugin for the recursive alignment of a stack of images.
• Curtis Rueden contributed the Zeiss ZVI Reader plugin.
• Kai Uwe Barthel contributed the Volume Viewer plugin, which interactively displays a stack as volume within a 3D space.
• Olivier Marchal and Jerome Mutterer contibuted the 'A trous' Wavelet Filter noise reducing plugin.
• v1.34i, 15 February 2005
  • JPEG, GIF and PNG images are no longer cached, which reduces the amount of memory required to open and process these images.
  • Added a "Median" option to Analyze/Set Measurements.
  • Added an "Auto-Next Slice" option to Edit/Options/Point Tool.
  • Image/Show Info adds ">" to the description of DICOM tags that are part of a sequence.
  • The default directory used by Plugins/Edit is the ImageJ folder instead of the plugins folder.
  • Added the getStatistics(), getRawStatistics(), calibrate(), replace(), asin() and acos() macro functions.
  • The area fraction displayed by the "Summarize" option in Analyze/Analyze Particles no longer ignores selections.
  • Worked around a Java 5.0/Linux bug that caused exceptions when opening windows.
  • Fixed a bug that could cause macro paste operations to fail if the transfer mode was not "Copy".
  • Fixed a bug that caused an exception when opening some Metamorph TIFFs.
  • Fixed a bug that caused the getImageID() and getTitle() macro functions to fail after an open() call.
• Jerome Mutterer contibuted a macro that changes an image's display gamma by remapping the LUT, which preserves the pixel values, unlike the built-in Process/Math/Gamma command.
• v1.34g, 1 February 2005
  • The "Auto" option in Image/Adjust/Threshold is recordable.
  • File/New now sets the initial display range of 16-bit images to 0-65535 and of 32-bit images to 0-1.
  • ImageJ opens 48-bit RGB TIFF stacks.
  • The angle in the Image/Rotate/Arbitrarily dialog is displayed using two decimal places.
  • The TIFF ImageDescription field is now available as the description field returned by ImagePlus.getOriginalFileInfo().
  • Added getSelectionBounds(), getSliceNumber(), fillRect(), screenWidth(), screenHeight(), eval(), runMacro() and toString() macro functions.
  • Second argument of getResult() macro function is optional and it now returns NaN if the specified column is not found.
  • Added an optional third "mode" argument to the setThreshold() macro function.
  • Plugins/Macros/Install displays an error message if the file contains more than 60 macros.
  • In the macro language, user functions now override built in functions.
  • Fixed a bug in the DICOM reader that caused files with a thumbnail in an indefinite length sequence (e.g., GE Senographe 2000 D) to not open correctly.
  • Fixed a bug that sometimes caused macro keyboard shortcuts to fail.
  • Fixed a bug that caused a macro to fail if a boolean expression contained line breaks.
  • Fixed a bug that could cause ImageJ to crash if a macro with a name duplicating an ImageJ menu command was copied to the plugins folder.
  • Fixed stack related problems in the setFont() and setColor() macro functions.
  • Fixed a bug that caused Image/Adjust/Brightness/Contrast to sometimes fail if used after a paste operation.
  • Fixed a bug that caused user a function call at the beginning of a macro file to fail.
  • Fixed a bug that caused Image/Adjust/Brightness/Contrast "Apply" operations on stacks with non-rectangular selections to fail.
  • Fixed a bug that could cause ImageJ to hang when quitting on Mac OS X.
• The MeasureAreaFraction macro measures area percentages in thresholded images or 8-bit binary images.
• The RecordProfile macro saves profile plot data in the "Results" table.
• The Artillery macro demonstrates macro programming techniques, and also provides a little relaxation.
• Olivier Marchal and Jerome Mutterer contibuted the Haar Wavelet noise reducing filter.
• The OpenSeriesUsingFilter macro opens an image series as a stack using a customizable file name filter.
• Bo de Lange contributed the MeasurePieSegmentsTool macro, which measures and labels predefined pie shaped selections.
• Sergio Caballero has made available the Colocalize RGB and Area Calculator plugins.
• Greg Jefferis has made available the Biorad Writer plugin.
• v1.34f, 13 January 2005
  • Added the "Y Max" option to the dialog box displayed when Analyze/Histogram is used on a 32-bit image.
  • Batch mode macros that switch between on-screen images run much faster.
  • Fixed several batch mode macro bugs.
• The CustomHistogram macro displays a histogram of the active image or stack using a specified number of bins and fixed X and Y axis.
• v1.34e, 10 January 2005
  • Image/Show Info displays additional tags from the headers of DICOM images.
  • File/Save As/Raw Data now works correctly with signed 16-bit images and stacks.
  • Added the keyDown() macro function. (c)
  • Fixed a bug in the setLocation() macro function that could cause it to fail in batch mode macros.
  • Fixed a bug in the newImage() macro function that caused it to return before the newly created image was activated. (d)
  • Fixed bugs in the SelectImage() and selectWindow() macro functions that could cause them to fail in batch mode macros (d).
• The ConvertDicomDictionary macro converts the DICOM dictionary to the format used by ImageJ.
• The CircularQuadrantMeasure tool creates an oval (or circular) selection centered around where you click and measures and labels its four quadrants.
• The MakeMontage macro demonstrates several macro coding techniques.
• v1.34b, 5 January 2005
  • Angles displayed by the straight line, polygon and polyline tools are in the range -180 to 180 degrees instead of 0 to 360 degrees.
  • The print() macro function accepsts multiple arguments.
  • Added the toLowerCase() and toUpperCase() macro functions.
  • Fixed a recording bug in Image/Color/Edit LUT.
  • Fixed a bug that caused an error when an "AutoRun" macro used a global variable.
  • Fixed a bug that caused run("Close") to sometimes fail in batch mode macros.
  • Fixed bugs that caused saving in JPEG and BMP formats to fail in batch mode macros.
  • Fixed a bug in the macro interpreter that caused an error with assignments in the form x = f()*y, where f() is a user-defined function.
  • Fixed a minor bug in the MedianCut class (Image/Type/8-bit Color).
  • Fixed a bug, introduced in 1.33s, that caused the DICOM reader to attempt to open thumbnail images stored in private sequence tags.
• Gary Chinga developed Image CorrelationJ, a plugin that calculating the correlation of two images or stacks.
• The BatchConvert macros convert a folder of images to a different format.
• v1.34a, 21 December 2004
  • Thanks to code contributed by Curtis Rueden, ImageJ now opens LZW compressed 8-bit and RGB TIFFs.
  • The "Save changes to..." dialog is no longer displayed when a text window is closed by a macro.
  • Fixed a bug, introduced in 1.33s, that caused the DICOM reader to open a thumbnail of the image.

V 1.33u, 15 December 2004

• v1.33u, 15 December 2004
  • Image/Stacks/Plot Z-axis Profile uses the "Minimum Y" and "Maximum Y" values set in Edit/Options/Profile Plot Options, and it no longer requires a selection.
  • Added the parseInt() and parseFloat() macro functions.
  • Fixed a bug that caused 16-bit signed images imported using File/Import/Raw to open incorrectly if "Open All Files in Folder" was checked.
• v1.33t, 13 December 2004
  • In the Image/Adjust/Size dialog, when "Constrain" is checked, the width is calculated when the height is changed, and vis versa.
  • In the Image/Scale dialog, when the x scale is changed, the y scale is set to the same value.
  • Process/FFT/Custom Filter works better with non-float images.
  • Added the setAutoThreshold() and rename() macro functions.
  • Fixed bugs in Image/Stacks/Convert Images to Stack and ImagePlus.getStack() that caused them to not carry over the DICOM and FITS header information.
• Added an example that shows how to analyze a dot blot.
• v1.33s, 7 December 2004
  • All DICOM tags are now displayed by Image/Show Info, not just the ones in ImageJ's DICOM dictionary.
  • Added the newImage(), save(), saveAs() and getZoom() macro functions, and updated the recorder to generate calls to newImage() and saveAs().
  • The saveSettings() macro function saves more Edit/Options settings.
  • Fixed a bug that caused shortcuts created with Plugins/Shortcuts/Install Plugin to fail if the argument contained one or more back slashes.
• The Cooke Corporation released a Windows 2000/XP plugin for their pco.1200hs, pco.1600, pco.2000 and pco.4000 14-bit CCD cameras.
• Gilles Carpentier contributed the GaussianConvolution macro, which does image smoothing using a custom Gaussian matrix.
• The StackProfilePlot macro generates profile plots of all the images in a stack and stores then in another stack.
• Jerome Mutterer contibuted a macro that extracts the original name and acquisition mode of JPEG images taken with a Nikon DXM 1200 camera and ACT-1 software.
• Gabriel Landini contributed the ResizeImagesAndStack macro which creates a stack from images that differ in size.
• v1.33r, 26 November 2004
  • Analyze/Plot Profile works with straight lines wider than one pixel.
  • Double-clicking on any line tool opens a slider widget for setting the line width.
  • Added "Use Inverting LUT" option to Edit/Options/Image, which causes, with 8-bit images, zero to be displayed as white and 255 as black.
  • Added "Integrated Density" option to Analyze/Set Measurements. Integrated density is the product of the area and mean.
  • Hold down alt when using Image/Color/RGB Split to keep original image.
  • Process/Binary/Erode and Dilate are faster and use less memory.
  • Added a "Count" field to Process/Binary/Options.
  • Added the 0018,0073, 0018,0074 and 0018,0075 tags to the DICOM dictionary.
  • File/Run Macro in the text editor runs the first macro in a macro set.
  • Added the setSlice(), getImageInfo() and isNaN() macro functions and the NaN predefined constant.
  • The open() macro function now aborts the macro if there is an error or if the file is not found.
  • Macros that open windows run more reliably, especially on Mac OS 9.
  • Fixed a bug that caused an exception if an invalid value was entered in the ColorChooser used by Image/Color/Edit LUT and Color Picker.
  • Fixed an edge handling bug in Process/Binary/Erode and Dilate.
  • Fixed an array element argument passing bug in the macro language.
• Kai Uwe Barthel contributed an interactive 3D surface plot plugin.
• Michael Schmid contributed the MaskToSelectionMacros macro set.
• The OpenMacIPLab macro opens 16-bit images created by the Mac version of IPLab.
• The ListSelectionCoordinates macro displays the coordinates of the points that define the current selection, the length of the segments connecting the points and the average segment length.
• Gabriel Landini contributed the RandomSampleAndMeasure macro which creates random selections, then measures and labels them.
• Philippe Thévenaz et al. have made available the UnwarpJ plugin that performs spline-based elastic registration of two images.
• Gabriel Landini contributed the EDM_16bits macro which extends Process/Binary/Distance Map to support objects with a radius greater than 255.
• The RadialIntegratedIntensity macro plots integrated radial intensity from 0-360 degrees.
• The ListDicomTags macro displays the values of selected DICOM tags.
• Joel Sheffield contributed the ReplaceRedWithMagenta macro that replaces the red channel in an RGB by magenta to allow easier viewing by color blind viewers.
• v1.33p, 10 November 2004
  • A node can be added to a polygon or polyline selection by shift-clicking on an existing node. A node can be deleted by alt-clicking on it.
  • A point in a point selection can be deleted by alt-clicking on it. (Use shift-click to add points.)
  • The "+", "-", ">" and "<" shortcuts (without control key) are more likely to work with European keyboards.
  • Compiler errors are display using a monospaced font so the "^" error pointer is correctly positioned.
  • The IJ.runMacro() method is up to 30 times faster.
  • On Mac OS X, text windows use a larger font.
  • Worked around a Mac OS X bug that caused the end of newly opened text files to be displayed instead of the beginning.
  • Worked around a Mac OS X bug that caused lines in a text windows to be displayed incorrectly after a 'return' was entered.
• v1.33o, 4 November 2004
  • Added the Image/Zoom submenu, with commands for zooming in, zooming out, reverting to original magnification and for zooming to a selection.
  • Added the File/Open Recent submenu.
  • Added an option to Analyze/Histogram to generate stack histograms.
  • Added the "Use Stack Histogram" option to Process/Enhance Contrast and renamed the "Process Entire Stack" option to "Normalize All n Slices".
  • File/Save re-saves TIFF files without a file save dialog.
  • Added the "Require Control Key" option to Edit/Options/Misc.
  • Plugins/Macros/Install is now recordable.
  • "[" and "]" can be used instead of single quotes to delimit parameters that may contain spaces in run() calls (e.g., run("Tiff...", "save=["+path+"]")).
  • Added the atan2() macro function.
  • Fixed a bug that caused an exception when opening 48-bit TIFF stacks.
  • Fixed a bug in File/Save As/AVI that caused it to sometimes not correctly set the file length when replacing an existing file.
  • Fixed a bug in the macro interpreter that caused statements in the form print(n+s) to fail, where n is a numeric variable and s is a string variable.
  • Fixed a bug that sometimes caused bogus "No windows Open" errors when running a macro.
  • Fixed a bug that could cause the roiManager() macro function to sometimes fail if the Roi Manager was opened and then closed.
• Joachim Walter contributed the Spectral Unmixing plugins, which correct for spectral bleedthrough between color channels of fluorescence images.
• Gilles Carpentier contributed the FFTRemoveStreaks macro for removing interference streaks from confocal images. Before and after images are provided.
• Jarek Sacha has made available a plugin for texture synthesis using image quilting.
• Dimiter Prodanov contributed the Color Profiler plugin.
• v1.33n, 22 October 2004
  • Added the setBatchMode() macro function. Five example macros are available: BatchModeTest, BatchModeCalculator, BatchMeasure, BatchSetScale and BatchRGBMeasure.
  • The getFileList() macro function removes files whose names start with ".".
  • The selectImage() macro function accepts a string argument.
  • Added the close() macro function.
  • Added the addResult("Label", row, string) macro function. The BatchRGBMeasure macro demonstrates how to use this new function.
  • Edit/Selection/Fit Ellipse and Edit/Selection/Convex Hull work with multi-point selections.
  • The "Summarize" option in Analyze/Analyze Particles summarizes stacks.
  • The "Area" parameter is automatically enabled when "Summarize" or "Size Distribution" is selected in the Analyze/Analyze Particles dialog.
  • Press 'Esc' to abort commands in the Process/Filters submenu.
  • Added the IJ.getImageCount() method.
  • Fixed bugs that caused Process/Filters commands, Copy, Paste and the Image Calculator to abort macros run from the command line.
  • Fixed a bug in Process/Filters/Unsharp Mask when used with RGB images with Rectangular selections.
  • Fixed a bug the caused the "Summarize" option in Analyze/Analyze Particles to note work correctly when analyzing a single image in a stack.
  • Fixed a bug in the addResult() macro function that sometimes caused leftover row labels.
  • Fixed a bug in Analyze/Tools/Scale Bar that caused it to fail when run from a macro.
• v1.33m, 8 October 2004
  • Process/Image Calculator result images inherit the spatial calibration of the first source image.
  • The Image Calculator generates a 32-bit result if either input image is signed 16-bit.
  • Analyze/Label uses larger font sizes with images displayed using less than 100% magnification.
  • Printing works better, especially for large images.
  • Added "Rotate 90 degrees" option to File/Page Setup
  • File/Import/Image Sequence, File/New, Image/Stacks/3D Project and Image/Stacks/Reslice can be abort by pressing 'Esc'.
  • On Mac OS X, the status bar uses a smaller font.
  • Image/Stacks/Reslice shows required and available memory in the dialog, preallocates the output stack, and, with line selections, shows the area to sliced.
  • The DICOM reader now attempts to open all files with a ".dcm" extension.
  • File/New opens stacks faster when "Fill With:" is set to "Black" and it displays the elapsed time in the status bar.
  • Fixed a bug in Image/Stacks/Reslice that caused it to sometimes use the wrong display range for the output stack.
  • Fixed a bug that caused Analyze/Tools/Calibration Bar to not work correctly with nonlinear calibration functions.
  • Fixed a bug that caused the Mac OS X menu bar to disappear when the "B&C" window was active.
  • Worked around a Mac OS X bug that caused invalid text editor "Save Changes" dialogs.
• Jérôme Mutterer contributed the Subtstack Select plugin.
• v1.33l, 24 September 2004
  • Process/Subtract Background works with 16-bit images.
  • Rows in the "Results" table are renumbered after a Cut or Clear.
  • Analyze/Summarize works correctly after rows have been Cut or Cleared from the "Results" table.
  • Analyze/Summarize works correctly with line measurements.
  • Fixed a bug that could cause macros run from the command line to abort.
• The ApplyDicomRescaleSlope macro multiplies images in a stack by the DICOM Rescale Slope value.
• The JTwain plugin uses the Asprise JTwain library to acquire images from TWAIN sources.
• Fabrice Cordelieres contributed the Manual Tracking plugin.
• Noel Bonnet has made available plugins for anisotropic diffusion, shading correction, contrast enhancement, image gradients, segmentation and generating a toolbar.
• v1.33k, 7 September 2004
  • The getProfile() macro function averages horizontally if preceded by setKeyDown("alt").
  • Added the getMinAndMax() macro function. See the DisplayRangeMacros for examples.
  • Added the ResultsTable.setLabel(String, row) method.
  • The "Interpolate" option in Image/Stacks/3D Project is ignored if the slice spacing (in pixels) is less than or equal to 1.0.
  • Fixed a bug that caused 0.5 to be added to 32-bit images rotated using Image/Rotate/Arbitrarily when "Interpolate" was selected.
  • Fixed a bug that could cause a "too many files open" error when attempting to open TIFF files.
  • Fixed a bug, when using ImageJ as a library, that prevented memory from being released when an image window was closed.
  • Fixed a bug in Image/Stacks/3D Project that caused color LUTs to not carry over to the projections stack if "Interpolate" was selected.
  • Worked around a Windows/Java 1.5 bug that caused Cntrl+V to fail in the editor (Plugins/Edit).
• v1.33j, 18 August 2004
  • Analyze/Analyze Particles now works with 16-bit signed images.
  • For 16 and 32-bit images, Image/Adjust/Threshold now does a B&C "Reset" to work around a display range not equal to pixel value range thresholding bug.
  • File/Open opens the ZIP archives saved by the ROI Manager.
  • File/Save As/AVI and File/Import/Image Sequence now always display a progress bar.
  • Operations on stacks now always display a progress bar.
  • Added the setFont() macro function. See the TextDemo macro for examples.
  • Added the roiManager("Open", path) and roiManager("Save", path) macro functions.
  • Removed the "Thresh." and "Update" buttons from the Image>Adjust>Brightness/Contrast window. The DisplayRangeMacros replace the "Update" button.
• v1.33i, 11 August 2004
  • Added the Edit/Selection/Specify command.
  • Macro shortcuts can override built in shortcuts. The KeyboardShortcuts macro file contains examples.
  • Ctrl-x, ctrl-v and ctrl-a (Cut, Copy and Select All) keyboard shortcuts work in the "Results" window.
  • Fixed a bug that prevented status bar display of calibrated frequency values as the cursor is moved over FFT images. The FFT Measurements example shows how to use this feature to measure distances between atomic planes in a TEM image.
  • Fixed a bug that caused Image/Stacks/3D Project to ignore selections when "Interpolate" was checked.
  • Fixed a bug (introduced in 1.33a) that sometimes caused DICOM images to be displayed incorrectly if the RescaleSlope tag was not 1.
  • Fixed a bug that sometimes caused DICOM window and level to be set incorrectly.
• Michael Abramoff, Paulo Magalhaes and Sunanda Ram wrote an article about ImageJ:
        Abramoff, M.D., Magalhaes, P.J., Ram, S.J. "Image Processing
        with ImageJ". Biophotonics International, July 2004, pp. 36-42.
• The ParticleCircularityHistogram macro calculates and displays a particle circularity distribution histogram.
• Dirk Scheffler contributed the DICOM Directory Analyser plugin.
• Scion released Windows and Mac OS X plugins for their Firewire cameras.
• David Dunlap and Marco Caimi contributed the AVI Splitter plugin that opens an AVI file for viewing and allows the user to export one or more segments of the file to an ImageJ stack.
• The Convert to 16-bit Signed plugin converts an unsigned 16-bit image into a signed 16-bit image.
• v1.33h, 30 July 2004
  • Run a macro or plugin by clicking on an icon in the tool bar (example).
  • The "Fill With: White" option in Edit/New now works with 16-bit and 32-bit images.
  • The "Fill With: Clipboard" option in Edit/New displays a more helpful message when the internal clipboard is empty.
  • Added Edit/Select All command to text editor (Edit/New).
  • Message dialogs use anti-aliased text.
  • The command recorder displays an error message if it encounters a duplicate keyword.
  • Added the IJ.error(title, message) method.
  • Fixed a bug that caused macros to continue running after an error.
  • Fixed a bug that caused the command recorder to insert extra spaces in the options string.
• Bertram Manz contributed the Bruker Opener plugin.
• Gilles Carpentier created an AppleScript application for updating ImageJ on Mac OS X using drag and drop.
• Christopher Philip Mauer contributed the 2D Hybrid Median Filter, 3D Hybrid Median Filter, RG2B Colocalization and RGB Zprojector plugins.
• v1.33g, 15 July 2004
  • Extended the cross hair tool and renamed it "point selection tool". Shift-click to add a point. Double-click on the tool icon to configure. Use the getPolygon() method or getSelectionCoordinates() function to retrieve the points.
  • Analyze/Measure records point tool Z coordinates.
  • ROI Manager improvements:
    • ROIs added to the list are now bound to the stack slice.
    • List items are in the form YYYY-XXXX or SSSS-YYYY-XXXX, where SSSS is the slice number, YYYY is the y-center and XXXX is the x-center.
    • ROI modifications do not alter an ROI on the list unless "Update" is clicked.
    • Removed the "Rename" option. Use "Save" instead.
    • ImageJ keyboard shortcuts work when the ROI Manager is the active window.
  • Added support for numeric keypad macro shortcuts in the form "[n0]".."[n0]", "[n/]", "[n*]", "[n-]", "[n+]" and "[n.]"
  • Fixed a bug that generated redundant coordinates when using the freehand and freeline tools on magnified images.
  • Fixed a bug that caused the Prefs.set() method to fail with strings containing a backslash.
• Gilles Carpentier created another example AppleScript application that opens an image in ImageJ and processes it. Requires Mac OS X 10.3
• Marco Brugnara contributed the Contact Angle plugin.
• The RoiManagerAddParticles macro demonstrates how to add particle analyzer outlines to the ROI Manager.
• The LabelParticlesWithArea macro demonstrates how to label particles with the "Area" value.
• v1.33f, 7 July 2004
  • Macros in "StartupMacros.txt" with the name "AutoRun" run when ImageJ starts up.
  • Added "Rename" to menu that pops up when you right click on an image.
  • Center of mass of RGB images is now calculated.
  • ROI Manager improvements:
    • "Add", "Add & Draw", "Measure", "Draw" and "Combine" are recordable.
    • "Select All" removed. Most functions now operate on all ROIs if no items on the list are selected.
    • "Open All" removed. "Save" now saves ROIs as a ZIP archive and "Open" opens ZIP archives.
    • "Fill" removed. Instead, use "Combine" and the Edit/Fill command.
    • List items are now in the form "TXXXX-YYYY", where T is the selection type, XXXX is the x-center and YYYY is the y-center.
  • Added the roiManager() macro function.
  • Worked around a Mac OS X pop-up menu bug.
• v1.33e, 28 June 2004
  • With straight line selections, Analyze/Measure now records the angle.
  • Fixed several bugs that caused composite selections to be mistaken for line selections.
  • Fixed a bug that caused recording of "Apply" in Image/Adjust/Threshold to fail.
  • Fixed a bug that could cause File/Import/Image Sequence to fail if the number of images and a file name filter were specified in the dialog.
  • Fixed a bug that caused Edit/Clear Outside to not work with stacks.
  • Fixed a bug that caused some operations on stacks to fail with selections inverted using Edit/Selection/Make Inverse.
  • Fixed a bug that caused the getMask() method to sometimes return a mask with a null pixel array.
  • Fixed a bug that caused Help/About ImageJ to generate an exception when ImageJ was running as an applet.
• Gilles Carpentier created an example AppleScript application that opens an image in ImageJ and processes it. Requires Mac OS X 10.3
• Kai Uwe Barthel contributed the 3D Color Inspector plugin.
• v1.33d, 18 June 2004
  • Added the open() macro function and IJ.open() method.
  • When using File/Open, the command recorder generates a call to open() instead of run().
  • The command recorder records Image/Adjust/Threshold as a comment.
  • Image/Stacks/3D Project of RGB images now works with rectangular selections.
  • Fixed a bug that caused ImageProcessor.setColor() to fail with thresholded images.
  • Fixed a bug that caused Image/Stacks/3D Project to fail when used from command line programs and macros.
  • Fixed a bug that caused plot windows to "popup" in command line programs and macros.
  • Fixed a bug that sometimes caused commands to abort if the user clicked on the active image.
  • Fixed a bug that caused Plot.setLimits() to sometimes fail.
• The 3D-Distance-Tool macro measures the 3D distance between two points in a stack.
• The LineAngleTool macro draws a line and measures the angle between that line and the vertical axis.
• RunMacro program runs ImageJ macros from the command line.
• v1.33c, 3 June 2004
  • The maximum number of decimal places that can be specified in Analyze/Set Measurements was increased from 8 to 9.
  • Added the IJ.runMacro(macro, arg) and IJ.runMacroFile(path, arg) methods.
  • The return statement, when not called in a function, now exits the macro. If the macro was called using IJ.runMacro() or IJ.runMacroFile(), it can also return a string value.
  • Added the getArgument() and setKeyDown() macro functions.
  • Fixed several bugs that caused exceptions or incorrect operation when processing images with non-rectangular selections extending beyond the edges of the image.
  • Fixed a bug that caused an exception if the ByteProcessor.putPixel() method was called with coordinates that were not inside the image.
  • Fixed a bug that caused Process/Filters/Mean to not work correctly with non-rectangular images if "Separable Square Mask" was checked.
• v1.33b, 26 May 2004
  • Opens uncompressed 12-bit TIFFs, including TIFF stacks.
  • Pasted non-rectangular selections can be dragged beyond edge of image.
  • Copied selections larger than target image can now be pasted.
  • Fixed a bug that caused the "Results" window to be opened when using ImageJ as a library. The Command Line Example demonstrates how a Java program can use ImageJ as a library.
  • Fixed a bug that caused an exception when using Edit/Cut or Edit/Clear Outside with non-rectangular selections extending beyond the image boundary.
• v1.33a, 19 May 2004
  • Adds the Rescale Intercept value (usually -1024 for CT) to DICOM images.
  • Calibration data in TIFF and DICOM images imported by File/Import/Image Sequence is now used.
  • Fixed a bug that caused most Process/Math commands to fail with 16-bit signed images.
  • Added the saveSettings() and restoreSettings() macro functions.
  • Image/Color/RGB merge works with 16 and 32 bit images and stacks.
  • With 16-bit signed images, the ImageProcessor putPixelValue() method now works symmetrically with getPixelValue().

V 1.32j, 12 May 2004

• Tony Collins has assembled 98 plugins useful for microscopy and written an accompanying 45 page manual. The software and manual are available at http://www.uhnresearch.ca/facilities/wcif/download.php, or online at http://www.uhnresearch.ca/facilities/wcif/imagej/.
• Pedro Ramos-Cabrer contributed the Slice Labeler plugin.
• Thomas Stamm contributed the DICOM Sort plugin.
• A Windows installer is now available that creates desktop and Start menu shortcuts, an uninstaller, and is 1.7MB smaller than the ZIP distribution. It was created using the Marner Java Launcher (ImageJ.exe) and the Inno Setup installer generator.
• Fixed bugs in Image/Lookup Tables/Apply LUT and extended it to work with thresholded images. (j)
• Fixed a bug Analyze/Analyze Particles that sometimes caused the "Summarize" option to fail if "Clear Results Table" was not checked. (j)
• Dimiter Prodanov contributed the Color Histogram plugin.
• Edoardo "Dado" Marcora wrote a small tutorial on how to use Jython with ImageJ.
• Jeff hardin contributed the JMF Movie Player plugin.
• Added the Edit/Options/Memory command for setting the Java heap size, which is the maximum amount of memory available to ImageJ. Requires Mac OS X or a version of ImageJ that was installed by the new Windows installer. (i)
• The IJ.showMessage() method and the showMessage() macro function now display HTML formatted text. For examples, run the HtmlDialogDemo macro.
• Plugins/Compile and Run now runs pre-compiled plugins (.class files). This allows running externally compiled plugins without having to restart ImageJ. (i)
• Removed the "Create Plugin" button from Plugins/Macros/Record and added a "Name:" field and "?" button. Use the editor's Edit/Convert to Plugin command to convert a macro generated by the recorder into a plugin. (i)
• Renamed Edit/Options/Miscellaneous as Edit/Options/Misc. (i)
• Fixed a macro bug that caused run() commands to fail if the ending of a keyword in the options string was the same as another keyword. (i)
• Fixed a bug in the PluginClassLoader that could case loading of resources from JAR files to fail. (i)
• When running Java 1.4.1 or later, or a version of ImageJ installed by the new Windows installer, ImageJ can display the maximum available memory and the percent memory used. The Window/About ImageJ and Plugins/Utilities/ImageJ Properties commands, and the status bar when it is clicked, display a string in the form "22MB of 600MB (4%)". The Plugins/Utilities/Memory Monitor tool displays the percent memory used. (h)
• The "Out of memory" error message now displays the amount of memory available to ImageJ, which is approximately equal to the amound set by the -Xmx command line option. (h)
• Added the "Black Canvas" option to the Edit/Options/Image dialog. (h)
• Moved the "Interpolate Images<100%" and "Open Images at 100%" options from Edit/Options/Misc to Edit/Options/Image. (h)
• Fixed a bug in Process/FFT/Inverse FFT that could cause it to fail if there was a selection. (h)
• Fixed a bug that could cause a blank error dialog box to be displayed when opeing a TIFF. (h)
• Added the Edit/Options/Conversions command, which displays a dialog with "Scale When Converting" and "Unweighted Color To Grayscale Conversions" options. (g)
• On Windows, the Help/ImageJ Web Site and Help/Online Docs commands no longer cause the DOS window to open. (g)
• File/Import/URL will open a Web page in the default browser if the specified URL ends in "/". (g)
• Analyze/Calibrate now displays the correct Rodbard equation. (g)
• Macros located in the plugins folder or sub-folder, with at least one underscore in the name, are installed when ImageJ starts up. (g)
• Added the Plugins/Macros/Run command. (g)
• Added the setupUndo() macro function. For an example, see the DrawingTools macros. (g)
• The makeSelection() macro function now accepts a numeric selection type. See the ScaleSelection macro for an example. (g) macros. (g)
• Added the "D" (draw dot) command to the tool macro icon description language. (g)
• Speeded up the macro language return statement. (g)
• Fixed a macro language bug that caused comparisons of strings longer than eight characters to fail. (g)
• Fixed a bug that prevented macro language calculator mode statements from starting with "(". (g)
• Fixed a bug that caused Process/Binay/Threshold to fail with contrast enhanced images. (g)
• Fixed a bug that caused Process/Enhance Contrast to not work as expected when the "Saturated Pixels" parameter was zero. (g)
• Fixed a bug in the fromCharCode() macro function that caused it to return extra characters. (g)
• Fixed a bug that caused Help/ImageJ Web Site and Help/Online Docs to fail on Windows Me. (g)
• Fixed a bug that caused text file larger than 60K to fail to open on Windows Me. (g)

• Added the getDirectory(), getFileList(), getPixelSize(), startsWith() and endsWith() macro functions. The ListFilesRecursively and ShowImageInfo demonstrate how to use these functions. (f)
• Image/Stacks/Make Montage displays slice labels, if available, instead of slice numbers. (f)
• Fixed a bug that caused incorrect display of results table row labels with DICOM and FITS images. (f)
• Fixed a bug in Image/Stacks/Plot Z-axis Profile that caused incorrect display of results table row labels. (f)
• Added the Open() method to the DICOM class. (f)
• Added the setNormalize() method to the DICOM class. (f)
• Gali Baler contributed the Exif_Reader plugin for extracting EXIF metadata from digital camera images.
• Cezar M. Tigaret contributed the ShapeRoi class that gives ImageJ the ability to add/subtract selections and to invert selections. (e)
• Hold down the shift key to add to a selection and the alt key to subtract from it. Requires Java 1.2 or later. (e)
• Added the Edit/Selection/Invert Selection command. Requires Java 1.2 or later. (e)
• Added the Plugins/Utilities/Capture Screen command, which was written by Gali Baler. Requires Java 1.3 or later. (e)
• Added a "Combine" option to the ROI Manager. (e)
• Added a "Convert to RGB" option to Import/Image Sequence. (e)
• Added the getThreshold(lower, upper) macro function. (e)
• The number of decimal places used for scale (resolution) values displayed by Analyze/Set Scale and Image/Show Info are increased as needed. (e)
• The selectWindow("title") macro function now waits up to four seconds. (e)
• Fixed a bug in the isOpen() macro function that caused it to fail when the argument was a string variable. (e)
• Fixed a bug that caused Roi Manager's "Save" function to corrupt the ROI list if the user canceled the save. (e)
• Dimiter Prodanov contributed an example that shows how to link ImageJ to a RDBMS engine like MySQL.
• Tony Collins and Tony parker have made available an enhanced version of the Dispose All Windows plugin that allows the user to select windows to be closed.
• Analyze/Label now works with the particle analyzer. (d)
• Fixed a bug in v1.32c that sometimes caused the ColorProcessor.fill(mask) method to fail. (d)
• Fixed a bug in v1.32c that caused Image/Adjust/Canvas Size to fail on Mac OS 9. (d)
• Ulf Dittmer enhanced the Prefs class to allow plugins access to the ImageJ preference file ("IJ_Prefs.txt") and contributed the Preference Demo plugin that demonstrates how to save and restore user preferences. (c)
• Added the Image/Color/Edit LUT command, written by Gali Baler. (c)
• Added the Analyze/Label command. As a shortcut, press alt-d. Press alt-m, alt-d to measure and label. (c)
• Edit/Draw labels the selection with the current measurement number if the alt key is down. (c)
• Added a "Zero Fill" option to Image/Adjust/Canvas Size. (c)
• Moved Analyze/Show LUT to Image/Color/Show LUT. (c)
• Masks are now 8-bits. Roi.getMask(), ImagePlus.getMask() and ImageProcessor.getMask() return a ByteProcessor instead of int[]. ImageProcessor.setMask(), ImageProcessor.getHistogram(), ImageProcessor.fill() and ImageProcessor.reset() now expect a ByteProcessor argument. Added the ImageProcessor.getMaskArray() method which returns a byte array. The background pixels in a byte mask are zero. Plugins resident on the ImageJ Web site that use masks (e.g., Stack Histogram, Stack Normalizer and Color Comparison) and have been updated to use byte masks. (c)
• Filling and drawing of ellipses is faster and the rendering is exactly the same way on all platforms. (c)
• Fixed a bug that caused importing of 1 bit stacks to fail. (c)
• Fixed a bug that caused an invalid error message when opening 1 bit TIFFs. (c)
• Fixed a bug that caused histogram bin start values of 16 bit signed images to be truncated. (c)
• Fixed a bug that caused the "Apply" option in Image/Adjust/Contrast/Brightness to fail with non-rectangular selections. (c)
• Fixed a bug that prevented the command execution time from being displayed in the status bar if there was a selection. (c)
• The length of freehand lines used by Image/Stacks/Reslice is now the same as that reported by the Measure command. (c)
• File name extensions ending in a digit are no longer hidden when "Show Label" is checked in Analyze/Set Measurements. (c)
• Worked around an OS X/Java 1.4 bug that caused particle labeling to fail. (c)
• Worked around an OS X/Java 1.4 bug that sometimes caused the text tool to enter an extra "d". (c)
• Worked around an OS X/Java 1.4 bug that caused interactive thresolding of 16 and 32 bit images to fail. (c)
• Matt Daniels contributed the Spectrum Extractor plugin.
• Brigitte Forster et al. of the Swiss Federal Institute of Technology Lausanne have made available the Extended Depth of Focus plugin.
• The PNG Writer plugin saves images in PNG format on systems running Java 1.4 or later.
• Moved the Image/Benchmarks commands to a package of plugins and added the Plugins/Utilities/Benchmark command. (b)
• Multiple files can be selected (by shift-clicking) and opened using File/Open if "Use JFileChooser" is enabled in Edit/Options/Miscelleaneous. (b)
• Plugins packaged in a JAR file are installed in submenus corresponding to the folder that contains the JAR file if the *'plugins.config' in the JAR file does not specify a menu. (b)
• Plugins>Utilities>ImageJ Properties displays a few more properties and, if the alt key is down, displays all Java properties. (b)
• Keyboard shortcuts now work when the "Results" window is active. (b)
• Added a "Start At" option to File/Save As/Image Sequence. (b)
• Added a "Border Width" option to Image/Stacks/Make Montage. (b)
• XOR mode rubber banding no longer used by the polygon, polyline and angle tools, working around XOR drawing bugs on Mac OS X. (b)
• Trevor Croft contributed an improved File/Open FITS reader. (b)
• Fixed a bug that caused the '<' and '>' shortcuts to fail to work after using the slice selector scroll bar. (b)
• Fixed a bug that caused the angle tool to fail for angles of 0 and 180 degrees. (b)
• Clones of the Roi classes are serializable. (b)
• Added the the getPolygon() method to the Roi class and the SetRoi(Polygon), setRoi(Roi), drawPolgon() and fillPolygon() methods to the ImageProcessor class. (b)
• ResultsTable.getValue() throws an exception i f the column name is not valid. (b)
• Adam Baker contributed the Quicktime Still Extractor plugin.
• Stirling Churchman contributed a plugin that opens Andor .SIF files.
• Erik Meijering has made available NeuronJ, a plugin for neurite tracing and quantification.
• Jerek Sacha contributed the Maximum Entropy Threshold plugin.
• Plots generated by Analyze/Gels/Plot Lanes are now normalized when plotting OD calibrated images. (a)
• Selecting a line in the "Results" window no longer requires dragging the mouse. (a)
• Tool descriptions displayed in status bar as cursor moves over tool bar. (a)
• Fixed a bug in File/Save As/AVI that caused it to create AVI files that could not be opened by the Windows Media Player if the stack's frame rate was less than 1.0. (a)
• Fixed a bug that caused plugins to fail to load if a folder in the plugins folder was not readable. (a)
• Worked around a Mac OS X/Java 1.4 bug that caused labeling done by the Analyze/Gels commands to fail. (a)
• Fixed a bug that caused Process/Binary/Skeletonize to sometimes reduce 45 degree lines to a single pixel. (a)
• Fixed a bug that caused Process/Smooth, Process/Sharpen and Process/Find Edges to throw an exception with one pixel wide images. (a)

V 1.31v, 4 February 2004

• The OS X version of ImageJ has a new icon based on a photograph by Tom Grill of a Hartnack microscope, circa 1870's, at www.arsmachina.com.
• Albert Cardona has made available a 3D Editing plugin.
• Jerome Mutterer and Christophe Laummonerie contributed the RGB Profiler and Colocalization Finder plugins.
• Cezar M. Tigaret contributed a greatly improved Plugins/Utilities/Control Panel command that displays all ImageJ commands in a hierarchical tree structure. (v)
• Process/Binary/Erode, Dilate, Open, Close and Skeletonize now process edge pixels. (v)
• Added the Process/Math/Abs command. (v)
• Added the Edit/Zap Gremlins command to the text editor. (v)
• Menu keyboard shortcuts, when used with the control key held down, no longer sometimes run commands twice. Note that, except when using the text tool, there is no need to hold down the control or command key when using keyboard shortcuts. (v)
• Attempts to do 16-bit to 16-bit and 32-bit to 32-bit conversions no longer generate an error message. (v)
• Fixed a bug that sometimes caused the alt key to appear to be stuck down. (v)
• Double-clicking in the Color Picker (Image/Color/Color Picker) brings up a dialog with sliders for selecting RGB values. (u)
• For 32-bit images, Analyze/Histogram displays a dialog that allows the user to specify the number of bins and the range of values to be included in the histogram. (u)
• Removed the "Real Histogram Bins" option from the Edit/Options/Miscelleaneous dialog. (u)
• For 16 and 32 bit images, the column label in files created by the Histogram window "List" option changed from "value" to "bin start". (u)
• The mode of 16-bit images is now the most frequently occuring pixel value rather than the start of the histogram bin with the largest count. (u)
• Process/Binary/Watershed now uses the Process/Binary/Options dialog. (u)
• Fixed bugs in Process/Noise/Despeckle that caused it to fail with 8-bit stacks and to not process pixels along the edges of 8-bit images. (u)
• Spatial calibration of images with pixelWidth=1, pixelHeight=1 and pixelDepth!=1 now works as expected. (u)
• Fixed a bug in Analyze/Analyze Particles that erased outside the ROI if "Cancel" was selected in the "Save?" (Results) dialog. (u)
• Shanrong Zhang contributed plugins that open multiple image files from Varian MRI imaging systems and EVS 900 micro-CT systems.
• Ulf Dittmer added ICO support to the Jimi Writer plugin.
• Eric Kischell (keesh) contributed the Grid Cycloid Arc plugin.
• Added the Image/Color/Color Picker tool, written by Gali Baler, and retired Image/Colors. Press shift-k to activate the new color picker. (t)
• Fixed a bug that caused the dynamically updated X and Y values in plot windows to sometimes be invalid. (t)
• Dimiter Prodanov contributed the GrayMorphology plugin.
• Jerome Mutterer contributed a macro that draws the Mandelbrot set.
• Christopher Mei contributed the Anisotropic Diffusion, Mixture Modeling, Otsu Thresholding and Watershed Algorithm plugins.
• The text editor's Save As command is better at choosing the initial directory. (s)
• The Roi clone() method, used by Edit/Selection/Restore Selection, now correctly duplicates polygon and poly-line selections. (s)
• Worked around a bug that could cause some of the Image/Lookup Tables commands to fail with some JVMs. (s)
• Fixed a bug in Image/Adjust/Canvas Size that caused it to fail with non-displayed images. (s)
• Fixed a bug that caused the macro recorder to fail with dialogs containing a single checkbox. (s)
• When using ImageJ as a library, the "Results" window can be displayed without the "ImageJ" window being open. (s)
• Added the "Use JFileChooser" option to Edit/Options/Miscelleaneous. Upgrading to the OS X/Java 1.4.1 version of ImageJ and enabling this option may reduce the likelihood of ImageJ crashing on Panther (Mac OS X 10.3). (r)
• Hold down the control key to create centered rectangular and oval selections. This feature, which currently does not work on the Mac, is based on code contributed by Richard Bonnaire. (q)
• The image size at the top of image windows is in megabytes for image >= 1024K. (q)
• The "Black Background" option in Process/Binary/Options is saved in the preferences file. (q)
• Image/Stacks/Reslice, with RGB stacks, is faster and uses less memory. (q)
• Replaced the "1/2 Size" option in File/Import/Image Sequence with a more flexible "Scale" option and fixed a bug that caused memory sizes greater than 2GB to not display correctly. (q)
• Fixed a bug that caused run() macro functions to fail if an option keyword was repeated in the options string. (q)
• The Virtual Stack Opener opens an image sequence as a "virtual" (disk-resident) stack.
• Paulo Magalhães contributed the Ratio Plus plugin, which calculates the ratio between two images or stacks, as used in Fura-2 experiments.
• The JAR Plugin demonstrates how a plugin can be packaged in a JAR file and installed in multiple menus.
• Kurt De Vos contributed the Excel Writer plugin. This is the first plugin packaged as a JAR file. It requires ImageJ 1.31p or later.
• Adam Baker contributed the Radial Grid plugin.
• The PolygonArea macro calculates the area of a selection and compares it to the area calculated by the Measure command.
• ImageJ can install plugins packaged in a JAR file. There is an example. (p)
• Added the getBoolean() macro function. (p)
• The "List" option in Analyze/Histogram, with calibrated 8-bit images, now displays both calibrated and uncalibrated values. (p)
• A macro error is displayed when the options string in a run() call contains an invalid numeric value. (p)
• Plugins/Edit displays an error message when the user attempts to overwrite a write-protected file. (p)
• Worked around OS X/Java 1.4 bugs in Analyze/Surface Plot, Plugins/Utilities/Monitor Memory and the freehand selection tools. (p)
• Jeff Hardin updated the QuickTime Movie Opener and Movie Player plugins to work with Java 1.4.x on OS X.
• Joachim Walter contributed the HyperVolume Opener plugin.
• Added an example plugin that demonstrates how to display a grid of numeric fields in a dialog box.
• A Java 1.4.x version of the OS X ImageJ application that may run more reliably on Panther is available on the Download page.
• Kevin (Gali) Baler contributed a plugin for drawing dotted and dashed lines.
• Added Process/Binary/Fill Holes, based on code contributed by Gabriel Landini. (o)
• Process/Binary/Options allows the user to specify the background color (black or white) of binary images. (o)
• Daniel Tyreus rewrote the PluginClassLoader so it can read jar files and non .class resources (images, config files, etc) from the plugins folder. Everything except the actual class that extends PlugIn can now be placed in a jar file anywhere in the plugins folder or immediate subfolders. JavaDocs are available. (n)
• Polygon filling is now done using Java code instead of java.awt.Graphics.fillPolygon(). The new fill routine is faster, uses less memory, and works the same way on all platforms. Since Analyze/Measure does polygon filling, this means that measurement results are exactly the same on all platforms. (n)
• Analyze/Analyze Particles is faster due to the new polygon filler. (n)
• Worked around several Java 1.4.1 on Mac OS X problems. (n)
• Fixed a bug that could cause ImageJ to hang when quitting on Mac OS X. (m)
• Added the Edit/Selection/Create Mask command. (m)
• Added a "Redirect To" option in Analyze/Set Measurements. (m)
• Changed the "Filled" option in Analyze/Analyze Particles to "Masks". (m)
• The Cooke Corporation released Windows plugins for their SensiCam and PixelFly cameras. Plugins for Mac and Linux are under development.
• Kevin (Gali) Baler contributed the Z Profiler plugin.
• Added the drawPlot() method to the PlotWindow class. See the Z Profiler plugin for an example.
• Fixed a bug, introduced in v1.31j, that caused the substring(), lastIndexOf(), charCodeAt(), split(), makeSelection() and indexOf() macro functions to fail. (l)
• Added "Open..." and "Save..." buttons to the Process/Convolve and Analyze/Calibrate dialog boxes. (l)
• Added new calibration function, y = a+b*ln(x-c), useful for calibrating to OD standards. (l)
• The Invert, Smooth, Sharpen, Find Edges, Add Noise and Despeckle commands no longer attempt to process 8-bit true color images. (l)
• Plugins/Edit now opens files with upper case extensions. (l)
• Image/Stacks/Convert Images to Stack now ignores any open stacks. (l)
• Added the setZCoordinate() macro function. For an example, check out the Z Profile Plotting Tool. (l)
• Added the addPanel() method to the GenericDialog class. (l)
• Erik Meijering has made available RandomJ, a collection of plugins (Binomial, Exponential, Gamma, Gaussian, Poisson and Uniform) for image randomization.
• Added a collection of macro plotting functions. Refer to the ExamplePlots macro file for examples. (k)
• Plots created using the Plot class are clipped to the frame. (j);
• Image/Adjust/Threshold auto-adjusts the threshold when it first "sees" a new image. (j)
• The mean, min, max, mode or stddev of the pixels along a line selection are measured if the parameter is selected in Analyze/Set Measurements.
• Added the "List Values" checkbox to Edit/Options/Profile Plot Options. (j)
• Added the Dynamic Profiler plugin.
• Walter O'Dell contributed the DICOM Rewriter plugin for anonymizing DICOM files.
• Fixed a bug in v1.31h that caused images opened by macros to not be refreshed. (i)
• Added a "Median" options to Image/Stacks/Z Project. (h)
• File/Import/URL "remembers" the URL. (h)
• Added a "White Background" checkbox to Process/Binary/Distance Map, Ultimate Points and Watershed. (h)
• Worked around a bug that caused the Brightness/Contrast and Threshold windows to not display correctly with Java 1.4.1 on Mac OS X. (h)
• Added a "Selection Only" option to the File>Page Setup dialog. (h)
• Fixed a bug that caused File/Import/Image Sequence to fail to work with PGM files. (h)
• Added the Animated Sine Wave plugin.
• Added the Edit>Selection>Convex Hull command. (g)
• Added the Edit>Selection>Fit Ellipse command. (g)
• Added a "Normalize" option to Process>Enhance Contrast. (g)
• Added the Process>Math/NaN Background command which sets non-thresholded pixels in float images to the NaN (Not a Number) value. For float images, the "Apply" option in Image/Adjust Threshold runs this command. (g)
• Added the setResult() and updateResults() macro functions. Refer to the Convexity and Solidarity macro for an example. (g)
• Audrey Karperien contributed the Named Measurement plugin.
• Added the "Process Entire Stack" checkbox to the Image/Scale dialog box. (f)
• The commands in the Process/FFT submenu work with RGB images and images that are not a power of 2 size. (f)
• Process/Filters/Unsharp Mask is faster and uses less memory. (f)
• Fixed a bug that caused ImageJ to crash when it was run from the command line while in the plugins directory. (f)
• Added the Process/FFT/FD Math command, which does frequency domain auto-correlation, cross-correlation, convolution and deconvolution. (e)
• Fixed bugs in and enhanced the commands in the Process/FFT submenu. (e)
• Fixed a bug that caused the run("Paste") macro function to not work reliably. (e)
• Gabriel Landini has made available a collection of macros, including Laplacian, Prewitt, Roberts and Sobel filters, and John Conway's game of life.
• Fixed a bug in File/Save As/BMP that caused it do save 8-bit images incorrectly. (d)
• Added a "32-bit Result" option to Process/Image Calculator. (d)
• The default divide-by-zero value used when dividing 32-bit (float) images is infinity. (d)
• On Mac OSX, the preferences file (IJ_Prefs.txt) is saved in [home]/Library/Preferences. (d)
• Interpolation is disabled when "One Polygon Per Line" is checked in Analyze/Surface Plot.
• Added the getResultsTable() static method and the getValue(String, int) instance method to the ResultsTable class. (d)
• Kunito Yoshida contributed a plugin for acquiring images using the SensiCam long exposure Camera.
• The HandleExtraFileTypes plugin upgraded to work with images that have text headers. (c)
• The main ImageJ window, except on the Mac, is now resizable. (c)
• The standard deviation used by Process/Noise/Add Specified Noise is saved in the preference file.
• The URL of the images in the File/Open Samples submenu is displayed by Plugins/Utilities/ImageJ Properties. (c)
• 48-bit RGB TIFFs are opened as 16-bit stacks. (c)
• Fixed a bug that caused ImageJ to hang when opening an image with a height more than about 20 time higher than the height of the screen. (c)
• Selections can now have names. The File/Open, File/Save As Selection, Image/Show Info, Analyze/Measure and Analyze/Tools/ROI Manager commands were extended to support this feature. (c)
• Made several improvements to Analyze/Tools/ROI Manager, including a new "Rename" option. (c)
• Jeffrey Kuhn's Resize Canvas plugin is now built in as the Image/Adjust/Canvas Size command. (c)
• Added the Process/Filters/Variance command. (c)
• Added the Process/Filters/Show Circular Masks command. (c)
• Fixed a macro image open synchronization bug on Mac OS X. A test case is available. (c)
• Added the setValueUnit() method to the Calibration class. (c)
• Added the getXValues() method to the PlotWindow class. (c)
• Added the WandAutoMeasure tool macro.
• Fixed a bug that could cause ImageJ running on OS X to hang when quitting. (b)
• File/Import/LUT opens lookup tables in text format. (b)
• Added the Process/Binary/Watershed command. (b)
• Added "List" option to the Analyze/Show LUT widow. (b)
• Plugins that call IJ.run() are now recorded correctly. (b)
• 1.5 and 2.5 radius circular masks used by Process/Filters commands are no longer identical to 1.0 and 2.0 radius masks. (b)
• Added the makeSelection() macro function. (b)
• The segment length and angle are displayed in the status bar as polygon and segmented line selections are being created. (b)
• File/New settings are saved in the preferences file. (b)
• The frame rate in Image/Stacks/Animation Options can now be set as low as 0.1 fps. (b)
• Process/Filters/Mean is much faster for large kernels. (b)
• Added the Graphic Overlay plugin.
• Fixed a bug that caused the run("Image Sequence...", "open=...") macro function to fail when importing DICOM images. (a)
• Fixed a bug with the getInfo() macro function that caused an exception when the active image contained a selection. (a)
• The makeRectangle() and makeOval() macro functions delete the current selection if the width or height argument is less than one. (a)

V 1.30v, 3 July 2003

• Added the IPLab Reader plugin.
• Gregory Jefferis contributed the HandleExtraFileTypes plugin.
• Added support for the HandleExtraFileTypes plugin. (u)
• Image/Adjust/Brightness/Contrast now works with 8-bit images with Java 1.4. (u)
• Added "Label All Slices" option to Analyze/Tools/Scale Bar. (u)
• Renamed File/Save As/ROI as File/Save As/Selection and extended it to support all selection types. (u)
• Fixed setLocation() macro function. (u)
• File/Save As/Image Sequence displays an error if the number of digits used to generate file names is insufficient. (t)
• The "Apply" function closes the Image/Adjust/Thresold window. (t)
• Image/Duplicate preserves DICOM header information. (t)
• 16-bit to 8-bit scaling improved. (t)
• Anthony Padua and Daniel Barboria contributed the Substack Maker plugin.
• Angelo Taibi contributed the Dual-Energy plugin.
• Gregory Jefferis has written a plugin to import DM3 transmission electron microscope images.
• Replaced Process/Equalize with Process/Enhance Contrast. (s)
• File/Import/URL opens DICOMs. (s)
• Plugins/Edit and Plugins/Compile and Run are recordable. (s)
• The first <<out of memory>> message refers to rsb.info.nih.gov/ij/docs/install/. (s)
• Joachim Walter's FFT Filter plugin is now built in as the Process/FFT/Band-pass Filter command. (r)
• Added the addNumericField(label, default, digits, columns, units) method to the GenericDialog class. See the Process/FFT/Band-pass Filter dialog for an example of how it can be used. (r)
• The path keyword recorded by file open and save dialogs is now the first word of the dialog title instead of "path". (r)
• Plugins/Utilities/ImageJ Properties works when ImageJ is running as an applet. (r)
• Sonia Choubrac et al. contributed the Renal Function and Urinary Excretion plugins.
• Julio Cabrera contributed a texture analysis plugin.
• Dimiter Prodanov contributed the Granulometry plugin.
• Fixed a bug that caused incorrect histograms of non-rectangular selections that extended beyound the image boundary. (q)
• Plot window coordinates are displayed with more precision and the "List", "Copy" and "Save" options use the decimal places specified in Analyze/Set Measurements. (q)
• The y-value interactively displayed in plot windows is now the graph y-value instead of the cursor y-value. (q)
• Changing "Decimal Places" in Analyze/Set Measurements no longer opens an empty "Results" window. (q)
• Image/Color/RGB Split (Merge) now maintain spatial calibration. (q)
• Plugins/Utilities/Commands renamed List Commands and Plugins/Utilities/Shortcuts renamed List Shortcuts. (q)
• Image/Stacks/Z Project works with RGB stacks. (q)
• Fixed Analyze/Tools/Scale Bar Undo bug. (q)
• Pasted rectangular selections can be dragged beyond the image edge. (q)
• The ImagePlus getOriginalFileInfo() method works with stacks opened using File/Import/Image Sequence. (q)
• Updated the example servlet to use Sun's JPEGImageEncoder.
• Jarek Sacha created a packaged version ImageJ 1.30q that can easily be installed on the Sharp Zaurus PDA.
• Daniel Sage et al. of the Swiss Federal Institute of Technology Lausanne have written fractional splines and wavelets plugins.
• Christopher Philip Mauer contributed the Kalman Filter plugin, which removes noise from time lapse image streams.
• The ImageProcessor putPixel() method now clips values outside the range 0-255 (8 bit images) and 0-65535 (16 bit images). (p)
• ImageJ now executes macros passed on the command line. For example,
      java -cp ij.jar ij.ImageJ script.txt
  causes ImageJ to run the macro script.txt on startup. (p)
• The ReturnStatements.txt macro demonstrates the use of return statements to return arrays and strings. (p)
• ShowPath.txt macro demonstrates how to retrieve the path. (p)
• The message "1 macro installed" no longer displayed when opening text files. (p)
• Kurt DE Vos contributed the Image Viewer plugin.
• Jerome Mutterer contributed the Guess RAW plugin.
• Improved macro run-time error checking. (o)
• Added the split() macro function. (o)
• Copying the contents of text windows such as "Results" to the clipboard is now faster and more reliable. (o)
• Analyze/Tools/ROI Manager and Edit/Options/Fonts are now listed in the Window menu. (o)
• Walter O'Dell contributed the Contour Plotter plugin.
• Added Process/FFT submenu. (n)
• Added the indexOf(s1,s2,fromIndex) macro function. (n)
• Image/Type/8-bit Color is now always check if the active image's LUT has any color entries. (n)
• Fixed a bug in File/Import/Image Sequence that caused an exception if ImageJ was not able to open any images in the specified folder. (n)
• Anthony Padua contributed the Query DICOM Header plugin.
• Pierre Bourdoncle and Christophe Chamot contributed the Colocalization plugin.
• File/Import/Image Sequence saves DICOM and FITS header information in the stack so Image/Show Info can display header information for each image. (m)
• Added the File/Save As/Text command for saving the contents of TextWindows such as "Log" and "Info for XXX". (m)
• The selectWindow() macro function and the File/Close command now work with non-image windows. (m)
• Added the getInfo() macro function. (m)
• Moved the Select All, Select None and Restore Selection commands to the new Edit/Selection submenu. (m)
• Added the Edit/Selection/Fit Spline command, which is based on code contributed by Eric Kischell and John Bradley (author of XV). (m)
• Added BMP option to File/Save As/Image Sequence. (m)
• File/Import/Image Sequence no longer display "Unable to open" messages for files with names starting with a period. (m)
• Image/Stacks/Z project now carries over calibration to the projection image. (m)
• Tony Parker created a plugin that extends and improves the Stacks/3D Project command.
• Fixed a bug that caused the setPasteMode("Multiply") macro function to fail. There is a test case at PasteControlDemo.txt. (l)
• Rectangular, oval, polygon, straight line, segmented line and angle selections can now be edited by dragging "handles". The cursor changes to a hand when the mouse is over a handle. (l)
• Tool macro options can be set by double-clicking on the tool icon. For examples, see LineTool.txt and SprayCanTool.txt. (l)
• Tool macros now draw using the current foreground color. (l)
• Patrick Pirrotte & Jerome Mutterer contributed the HyperVolume Browser plugin.
• Added support for tool macros. For examples, see Tools.txt, PencilTool.txt and CircularSelectionTool.txt. (k)
• Added the getSelectionCoordinates() macro function and removed the nCoordinates function and the xCoordinates and yCoordinates built in arrays. See SelectionCoordinates.txt, ConvexHull.txt and FeretsDiameter.txt for examples. (k)
• The "Auto" function in Image/Adjust/Threshold now works with 16-bit images. (j)
• Fixed a bug in Analyze/Analyze Particles that could cause invalid results when working with a selection. As a result of the fix, particles are now clipped at the selection boundary. (j)
• Fixed a bug in The ROI Manager that could cause the "Measure" function to not work correctly when measuring a single slice in a stack. (j)
• Added the getLut() and setLut() macro functions. See LookupTables.txt for examples. (j)
• Eric Kischell contributed the Joel Time Stamper plugin which adds time annotation to images opened from a list.
• Patrick Pirrotte & Jerome Mutterer contributed the LUT Panel plugin which provides fast access to LUT functions and a LUT editor.
• When using the text tool, alt-m or alt-u displays the micron symbol and alt-shift-a displays the Anstrom symbol.
• Enter "A" as the unit of length in Analyze/Set Scale or Image/Properties and it will be converted to the Angstrom symbol. Enter "um" and it will be converted to "µm".
• Added "Open Images at 100%" option to Edit/Options/Miscellaneous. (i)
• Added "Hide Text" option to Analyze/Tools/Scale Bar. (i)
• The "Auto" option in Image/Adjust/Threshold works with 16-bit images. (i)
• Added getBoundingRect(), indexOf(), lastIndexOf(), substring(), fromCharCode() and charCodeAt() functions to the macro language. (i)
• Analyze/Histogram no longer ignores the "Limit to Threshold" measurement option. (h)
• File/New uses a progress bar when creating stacks. (h)
• "Out of memory" errors now displayed in "Log" window. (h)
• Added getHistogram(), getLine() and getVoxelSize() functions to the macro language. (h)
• Moved Plugins/Record to Plugins/Macros/Record. (h)
• PixelSmart released an ImageJ plugin for their line of video frame grabbers cards (Windows only).
• Added the Plugins/Macros/Install Macros command. (g)
• Macros in the file ImageJ/macros/StartupMacros.txt are automatically installed in the Plugins->Macros submenu at startup. (g)
• Added the File/Save As/BMP command. (g)
• ImageJ now opens 32-bit (BGR0) BMP images. (g)
• The "Limit to Threshold" option in Analyze/Set Measurements now works with 32-bit floating-point images. (g)
• Pixels with a value of Float.NaN (0f/0f), Float.POSITIVE_INFINITY (1f/0f) or Float.NEGATIVE_INFINITY (-1f/0f) are ignored when making measurements on 32-bit images. (g)
• Added support for macro keyboard shortcuts. For examples, see Shortcuts.txt. (e)
• User-defined macro arrays are now typeless. For an example, see Arrays.txt. (d)
• Added the getCursorLoc(x,y,z,flags), getImageID(), selectImage(id), isOpen(id), isActive(id) and atan(angle) macro functions. (e)
• Added the Angle tool. (d)
• Process/Noise/Add Noise and Process/Noise/Add Specified Noise work with 16 bit images. (d)
• Process/Noise/Despeckle works with 16 and 32 bit images. (d)
• Displays an error if the "Width", "Height" and "Offset" fields in the File/Import/Raw dialog are not consistant with the file size. (d)
• ImageJ opens 3D FITS data sets and opens FITS files more reliably thanks to code contributed by Alex Cabello. (c)
• Fixed a bug that caused the "Global" option in Analyze/Set Scale and Analyze/Calibrate to not work as expected. (c)
• Added the newArray(size), getProfile() and setLocation(x,y) macro functions. (c)
• Added the Image/Lookup Tables/Apply LUT command. (c)
• Added "Flip Vertically" and "Rotate 90 Degrees" options to the Image/Stacks/Reslice command. (c)
• The offset field in the File/Import/Raw dialog can now be greater than 2,147,483,648 (2GB). (c)
• Added the changeFont() and setLineWidth() methods to the PlotWindow class. The Example Plot plugin demonstrates how to use these methods. (c)
• Fixed a bug in Image/Adjust/Threshold that sometimes caused incorrect display and plotting of the threshold levels of 16 and 32 bit images. (c)
• The "Set" option in Image/Adjust/Threshold, when used with 32-bit images, is now recorded correctly. (c)
• Processing of entire stacks in Image/Scale is now optional. (b)
• Fixed a bug, introduced in 1.29d, that caused Image/Scale to work incorrectly if the Y Scale was less than one and "Create New Window" was not checked. (b)
• Fixed a bug that caused "wand error" messages when using Analyze/Analyze Particles with a non-rectangular selection and a lower threshold of zero. (b)
• Added the IJ.showProgress(currentIndex,lastIndex) method. (b)
• Revert now works with FITS images. (b)
• 32-bit DICOMS now open correctly. (b)
• Fixed a bug that caused the "Delete" function in the ROI Manager to sometimes fail if more than one ROI was selected. (b)
• Added the selectionType(), bitDepth(), setColor(value) and exit() functions to the macro language. (a)
• Fixed a bug in Image/Scale that could cause the source image to have incorrect spatial calibration. (a)

V 1.29, 19 December 2002

• Worked around a printing bug with Java 1.3.1 on Windows. (x)
• Added an example that shows how to write command line utilities that use ij.jar as a library. (v)
• Added an example that shows how to calibrate using an OD step tablet.
• The IJ.run() methods now work when the ImageJ window is not open. (u)
• The Image/Rotate/90 Degrees commands now preserve calibartion settings. (u)
• Image/Stacks/3D Project now works with RGB stacks and has an option to interpolate in the Z-dimension. (t)
• Image/Stacks/Reslice now works with RGB stacks. (t)
• The RGB Stack Splitter and RGB Stack Merge plugins are now built into ImageJ as the Image/Color/RGB Split and Image/Color/RGB Merge commands. (t)
• Added the Image/Color submenu and moved the Image/Stacks/Convert Stack to RGB command to it. (t)
• Added "Outline Lanes" and "Invert Peaks" options to Analyze/Gels/Gel Analyzer Options, and options are now saved in the preferences file. (s)
• Added the Image/Adjust/Window/Level and Image/Adjust/Color Balance commands. (r)
• Added sliders to Image/Adjust/Brightness/Contrast for adjusting the display range min and max. (q)
• Eric Kischell's Drag And Drop plugin is now built into ImageJ, allowing images, ROIs, LUTs, and text files to be opened by dragging and dropping them on the main ImageJ window. This plugin appears to only work on Windows but Mac users can open files by dragging and dropping on the ImageJ icon. (o)
• Fixed a bug that could cause the Image/Adjust/Brightness/Contrast tool to fail when used with RGB stacks. (o)
• The length() macro function was renamed lengthOf(). (o)
• Walter O'Dell contributed the Window/Level Adjuster plugin.
• The FeretsDiameter, ConvexHull and BouncingBar macros demonstrate ROI coordinate caculations and animation. (n)
• Added a "Feret's Diameter" option to Analyze/Set Measurements. (n)
• The InvertImage and BullsEye macros demonstrate pixel-by-pixel processing. (h)
• Thanks to Alexei Stapinski, ImageJ can now open 16 bit ASCII PGM files. (m)
• Anthony Padua updated the Specify ROI plugin and created a spreadsheet that generates macros that use it.
• Added a "32-bit Unsigned" type to File/Import/Raw. (l)
• The text editor File/Save command reverts to File/Save As if the text has not been previously saved. (l)
• Fixed a bug that would sometimes prevent the "Log" window from closing. (l)
• Added the Image/Stacks/Set Slice command. (k)
• The Edit/Paste Control tool can be recorded. (k)
• Fixed a bug with the way Process/Binary/Threshold supports undo. (k)
• Process/Binary/Distance Map and Ultimate Points work with stacks. (k)
• On JDK 1.4, the Compile and Run command suppresses the "javac.Main deprecated" warning. (k)
• Fixed a bug that sometimes caused duplicate paths when recording File/Open. (k)
• Erik Meijering finished a new package, FeatureJ, containing plugins for the extraction of features such as Gaussian-scaled derivatives, Canny edges, Laplacian zero-crossings, eigenvalues of the Hessian, global statistics, and eigenvalues of the structure tensor, from up to 3D gray-scale image sequences.
• Rick Turner has added some filter plugins (Prewitt, Roberts, Sobel, etc.) to his home page.
• Michael Umorin contributed the Stack Focuser plugin.
• The Process/Filters/Convolve and Analyze/Calibrate commands are now recordable. (j)
• Fixed a bug that could cause an exception when removing a slice from a two-slice stack and adding another. (j)
• Added a "Record Starts" option to Analyze/Analyze Particles. The CircularParticles macro demonstrates how to use this feature. (i)
• Added the Macros/Install Macros command to the text editor. The updated Polygon and MacroSet macros (http://rsb.info.nih.gov/ij/macros/) contain installable macros. (i)
• Added a "Circularity" option to Analyze/Set Measurements. (i)
• Fixed a bug that sometimes made it impossible to activate an Image from the Window menu if the start of the image name was the same as the name of another image. (i)
• The Polygon macro demonstrates user-defined functions and control of screen updates. (h)
• The text tool uses a larger default font size for images magnified less than 100%. (h)
• Added a "Circularity" option to Analyze/Set Measurements. (h)
• Updated the Plasma benchmark.
• A few example macros are now available at rsb.info.nih.gov/ij/macros/.
• Fixed minor labeling problems in Analyze/Gels. (f)
• Image/Rotate/Arbitrarily and Image/Stacks/Make Montage work better with signed 16 bit images. (e)
• 16 and 32 bit stacks with blank first slices now display correctly when first opened. (e)
• Fixed a bug in Analyze/Gels (introduced in v1.28) that caused inverted peaks and disabled OD calibration. (d)
• Fixed a bug in Image/Scale that caused the image to be slightly shifted up and to the left. (d)
• Analyze/Tools/XY Coordinates now saves in tab-delimited format. (d)
• Kavagiou Zaharoula contributed a plugin that combines images to create a mosaic.
• Fixed command recording problems in Image/Stacks/Reslice and Edit/Options/Profile Plot Options. (b)
• Added a "Create Macro" option to Plugins/Record. (b)
• Added an option to create a sample macro in Plugins/New. (b)
• Worked around text window cut and paste problems on Mac OS 10.2. (b)
• The "Convert to 8-bit Grayscale" option in File/Import/Image Sequence normalizes 8-bit images with color LUTs or with nonstandard grayscale LUTs. (a)
• Worked around a problem with truncated text on Mac OS 10.2. (a)

V 1.28, 22 August 2002

• Several Mac OS X 10.2 related problems are fixed in the latest OS X version of ImageJ.
• Audrey Karperien contributed a plugin that encloses an image in a convex hull then calculates circularity and roundness and a plugin that records data for fractal dimension and lacunarity using a box counting algorithm.
• Added the "Antialiased Text" option to Edit/Options/Miscellaneous (requires Java 2). (u)
• Added the "Interpolate Images <100%" option to Edit/Options/Miscellaneous (requires Java 2). This option may improve the display quality of large images magnified less than 100% but images will take longer to display. (u)
• Added the "Smooth" option to Analyze/Surface Plot. (t)
• Updated Image/Stacks/Reslice. (s)
• Fixed a bug in Analyze/Surface Plot that could result in incorrect plots of 32-bit float images with color LUTs. (s)
• Image/Stacks/Convert Images to Stack, Convert Stack to Images and Make Montage now work correctly with calibrated images. (r)
• Daniel Marsh created the BMP Writer a plugin.
• Marcus Lamer created the Sequenzer plugin for generating intermediate images between two reference images.
• Jarek Sacha created the 3D Toolkit, a package of plugins for reading and writing 3D images in MetaImage and VTK formats.
• Added the "One Polygon per Line" option to Analyze/Surface Plot. (p)
• The Analyze/Gels commands work with vertical lanes. (p)
• Hemerson Pistori and Eduardo Rocha Costa contributed the Hough Transform for Circles plugin.
• Bill O'Connell updated his Oval Profile Plot and Color Comparison plugins.
• Gary Chinga contributed a plugin that uses Gaussian filtering to decompose an image surface into waveness and roughness.
• Added the Analyze/Tools/Calibration Bar command, written by Bob Dougherty and Daniel Marsh. (o)
• On Mac OS X, the layout of the threshold and brightness/contrast tools is better due to the use Daniel Marsh's new TrimmedButton class. (o)
• Gary Chinga and Oeyvind Eriksen contributed a plugin that performs erosion, dilation, opening and closing of binary images.
• Improved Analyze/Tools/Scale Bar. (n)
• Analyze/Analyze Particles works with thresholded 16-bit and 32-bit images. (n)
• The wand tool works with 16-bit and 32-bit images. (n)
• File/Revert works with DICOM and BMP images. (n)
• Closing the "Log" windows exits debugging mode. (n)
• With stacks, the Z-coordinate of the cursor is displayed in the status bar. (n)
• The pixel value in the status bar is updated when using "<" and ">" to step through a stack. (n)
• Yannick Krempp and Jerome Mutterer contributed LSM Reader, a plugin that opens files produced by Zeiss LSM 510 confocal microscopes.
• Daniel Marsh has written the Color Chooser a plugin.
• ImageJ is now compiled without debugging information, which reduces the size of ij.jar from 615k to 484k. (m)
• The ImageJ source now includes an Ant build file ("build.xml") that can generate ij.jar, src.zip and the API documentation.
• Daniel Marsh has written AVI Reader, a plugin that opens uncompressed 8-bit and 24-bit AVI movies.
• Adrian Daerr has written JNIAkiz, a plugin and JNI library for full-frame-rate capture using Scion frame grabber cards.
• Added the File/Save As/AVI command. (l)
• The ImageProcessor convertToShort() and convertToFloat() methods now work with RGB images. (l)
• Analyze/Analyze Particles displays a summary that includes total area and area fraction if "Display Results" is not checked in the dialog and "Clear Results Table" is. (i)
• The animation speed specified in Image/Stacks/Animation Options is saved in the preferences file (IJ_Prefs.txt). (l)
• Gary Chinga contributed the Shape Descriptors plugin.
• Analyze/Surface Plot draws axis with labels. (k)
• Commands in the Process/Filters submenu work with non-rectangular selections. (k)
• The "OK" button is displayed to the left of the "Cancel" button in most dialogs except on the Macintosh. (k)
• Right-clicking finalizes polygon and polyline selections. (k)
• Fixed a bug that caused 3x3 convolution filtes to not work correctly on 16-bit images. (k)
• Analyze/Clear Results no longer displays an empty "Results" window. (k)
• Added the Analyze/Surface Plot command, which was created by Daniel Marsh. (j)
• The "Limit to Threshold" option in Analyze/Set Measurements works with 16-bit images. (j)
• Commands in the Process/Filters submenu work with rectangular selections. (j)
• Joachim Walter contributed the Sync Measure 3D plugin.
• Karl Schmidt contributed the MRI Analysis Calculator and Image Layering Toolbox plugins.
• Paul Baggethun contributed the Microscope Scale plugin that spatially calibrates images using hard-coded magnifications and length units.
• Fixed a bug, introduced in 1.28g, that prevented user plugins from being loaded from ij.jar when ImageJ is running as an applet. (i)
• Added Analyze/Tools/Scale Bar. (h)
• In the Analyze/Set Scale and Image/Properties dialogs, "um" is automatically converted to "µm". (h)
• Added the Help/Online Docs command. (h)
• Plugins/Utilities/Memory Monitor now opens centered on the screen. (h)
• There is a new About Box (Help/About ImageJ). (h)
• Perimeter measurements of rectangular and oval selections no longer ignore spatial calibration. (g)
• When using Java 2, saving in JPEG format is about 10 times faster. (g)
• Fixed a bug that could cause File/Import> and other submenus to not appear when running ImageJ in countries other than the USA. (g)
• Image/Adjust/Threshold "remembers" the thresholding mode during an ImageJ session. (g)
• Bob Dougherty has written the Live Histogram plugin that continuously generates histograms as you step through a stack or move a selection.
• QImaging released an ImageJ plugin (Windows only) for their Firewire cameras.
• Joachim Walter contributed an over/under thresholding mode for Image/Adjust/Threshold. (f)
• Improved the Gel Analyzer (Analyze/Gels). (f)
• Process/Binary/Threshold uses any threshold settings defined by Image/Adjust/Threshold and also works with 16 and 32 bit stacks. (f)
• The "Apply" option in Image/Adjust/Threshold works with 16 and 32 bit stacks and is recordable. (f)
• The "Reset" option in Image/Adjust/Brightness/Contrast is recordable. (f)
• Commands that process 16 and 32 bit stacks now reset the display range. (f)
• Added getInstance(), getROIs() and getList() methods to the RoiManager class. (f)
• Added methods to the ImageProcessor class that get and set pixels using an int array, making it easier to write plugins that process both grayscale and RGB images. The Deinterlace and Averaging Reducer plugins demonstrate how to use these methods.
• Added the convolve(float[] kernel, int width, int height) method to the ImageProcessor class. (e)
• Process/Binary/Threshold now uses threshold levels defined by the Image/Adjust/Threshold tool. (e)
• Updated and expanded (from 72 to 85 plugins) the Plugin Collection.
• Tony parker has posted two ImageJ applets. One preloads a couple of images, runs the benchmark, starts a cine, and has a customized Plugins menu. The other sets up some buttons that load images.
• Added "Add & Draw" and "Select All" buttons to the ROI manager. (d)
• Improved text quality on Mac OS X. (d)
• Tony Parker has added two new plugins to his collection of 12 plugins for medical image processing.
• The applet version of ImageJ now runs user plugins added to ij.jar and listed in IJ_Props.txt. (c)
• Gary Chinga contributed a plugin that calculates surface roughness statistics.
• Eric Kischell contributed the Drag And Drop plugin.
• Added support for RGB stack to 8-bit color stack conversions. (b)
• ROIs saved to a file are no longer limited to 5000 bytes. (b)
• Fixed a bug, introduced in 1.27, that caused pasting of non-rectangular selections to sometime fail. (b)
• Fixed a bug that caused pasted image selections to not be initially displayed. (b)
• Fixed a bug in Image/Adjust/Threshold that caused an exception with 16 or 32 bit images with non-rectangular ROIs. (b)
• Paul Baggethun contributed the Radial profile Plot plugin.
• Mark Barclay and Grant Harris contributed a UML class diagram of ImageJ as a 320KB Jpeg.
• Added the "Increment" field to File/Import/Image Sequence. (a)
• Added "Plot Width" and "Plot Height" fields to Edit/Options/Profile Plot Options. (a)
• Increased the font size used by Plugins/Edit when running Mac OS X. (a)
• Process/Filters/Gaussian Blur now works with density calibrated images. (a)

V 1.27, 24-April-2002

• Improved the error checking in File/Import/Text Image. (z)
• The Applet version of ImageJ now restarts as expected. (x)
• File/Open opens 16-bit binary PGM files. (x)
• The Java 2D Demo plugin uses Java 2D to draw 3D text on an image.
• Bob Dougherty has written a plugin to open and play QuickTime movies and to grab frames into a stack.
• There is a new Mac OS X release that opens images dragged onto the ImageJ icon as long as ImageJ is already running.
• Added the "Invert Y Coordinates" option to Analyze/Set Measurements. (x)
• Bob Dougherty has written a plugin to divide a stack of RGB images from an NTSC DV camera into separate 32 bit red, green and blue stacks.
• Eric Kischell added a "Create New Window" option to the MRI t2 plugin.
• Kas Thomas contributed the JavaScript Editor plugin that allows real-time evaluation of JavaScript code.
• Bob Dougherty has written a plugin to derive surface orientation from a topographical image acquired with a profilometer.
• Tony Parker has written a plugin that displays orthoganal views (axial, coronal and sagital) of a stack.
• Fixed rounding problems with ramps and RGB histograms. (v)
• Contrast/brightness settings are saved in the TIFF header. (u)
• Angle measurements take the pixel aspect ratio into account. (u)
• Hold down the shift key to constain line selections to 0 and 90 degrees. (t)
• Fixed a bug that would sometimes cause ellipse fitting to fail with spatially calibrated images. (t)
• Added a setColor() method to the PlotWindow class and updated the Example Plot plugin. (t)
• Updated the Windows distribution to JRE 1.3.1_03, which fixes a printing problem.
• ImageJ now opens big-endian DICOM files. (s)
• Histograms and plots are displayed as 8-bit images instead of RGB images. (s)
• Added drawLine, drawRect and getFontMetrics methods to the ImageProcessor class. (s)
• Worked around text bugs in Microsoft Java. (s)
• For 16 and 32-bit images, values displayed by the Histogram window "List" and "Copy" functions no longer have (bin width)/2 added. (q)
• The ImagePlus.show() and Roi.getMask() methods no longer require that the "ImageJ" window be open. (q)
• Fixed a bug in Image/Rename that caused the magnification to not be displayed in the title bar. (q)
• Mike Miller has written a plugin that helps segment images.
• The histogram window "List" and "Copy" options now use calibrated values. (p)
• Fixed a bug that caused 16-bit signed DICOM images with no pixels values less than zero to be displayed incorrectly. (o)
• The text tool works, more or less, on Mac OS X. (o)
• Plugin writers can use IJ.log(String) to display debugging information in a text window. (o)
• "Debug Mode" information enabled in Edit/Options/Miscellaneous is displayed in a separate "Log" window. (o)
• "Results" window column widths are calculated for each of the first 10 measurements. (n)
• The "Set" option in Image/Adjust/Threshold Image/Adjust/Contrast/Brightness works with calibrated pixel values. (m)
• Column widths are no longer reset after using Analyze/Clear Results. (l)
• Holding down the shift key prevents the window from enlarging when zooming in. (k)
• The Image Calculator Plus plugin adds, subtracts, multiplies or divides two images or stacks using scale and offset values.
• Joachim Walter contributed the Sync Windows plugin, an enhanced version of Patrick Kelly's SyncWindows_ plugin.
• Bill O'Connell contributed the Color Comparison plugin that uses color to compare grayscale images.
• Ryan Raz contributed the Gif Stack Writer plugin for saving stacks as animated gifs.
• The Thumbnail Maker plugin creates thumbnails and provides an example of how to use ImageJ on "headless" (no display) servers.
• Non-rectangular ROIs that extend beyond the image boundary are now handled correctly. A test case is available. (h)
• Fixed keyboard focus and text window size bugs associated with Mac OS X Java 1.3.1 Update 1. (h)
• File/Import/Image Sequence now sets the stack width and height to the width and height of the first selected image. (f)
• Process/Binary/Set Interations now works with stacks. (f)
• Jarek Sacha has written plugins that use JAI to open images.
• Bill O'Connell contributed the Oval Profile Plot plugin.
• The wand tool is now recordable. (e)
• Fixed several problems with Image/Properties and Image/Stacks/Reslice. (e)
• The Windows and Linux distributions now include Sun's JRE 1.3.1 Java 2 runtime environment.
• The "Process Stack?" dialog is no longer displayed when editing stacks using the keyboard shortcuts for Edit/Fill (F) and Edit/Clear (backspace). (d)
• Added the 'Hide "Process Stack?" Dialog' checkbox to Edit/Options/Miscellaneous. (d)
• Fixed a bug that caused BMP files with a gap between the header and pixel data to open incorrectly. (d)
• Joachim Walter contributed the Stack Normalizer plugin.
• The File/Import/Image Sequence dialog now allows the user to enter the number of images, the starting image, and a string used to filter by file name. (c)
• Image/Properties now does automatic unit conversions. (c)
• Added the getLine(int) method to the TextPanel class. (c)
• Worked around a bug on Linux where the "Save Changes?" and "Process Stack?" dialog boxes were sometimes too small. (b)
• On the Macintosh, dialog boxes are now fixed size without a "grow" region in the lower right hand corner. (a)

V 1.26, 17-January-2002

• Clicking on "List" in Histogram and Plot windows opens a separate text window instead of overwriting the "Results" window. (r)
• Fixed a bug that could cause problems when importing 16 bit signed stacks. (q)
• File/Import/Raw now always adds 32,768 to imported 16 bit signed images. It also adds a calibration function to the image so that he original signed values are correctly displayed. (q)
• Added the Image/Properties dialog, which allows stack slice spacing and frame rate to be set. (q)
• Stack slice spacing and frame rate are now saved in the TIFF header. (q)
• Image/Rotate/Flip Vertically is up to 10 times faster. (p)
• The Voxel Counter plugin counts the number of thresholded voxels in a stack.
• The Stack Inserter plugin inserts a stack (or image) into another stack.
• Added an example that shows how to use Java packages for plugin utility classes.
• The Twelve Bit Expander plugin unpacks 12-bit images.
• Tony Parker has written a plugin that opens interfile format nuclear medicine image sets. He also makes available 92 lookup tables from the NucMed_Image program.
• Worked around a Mac OS 8/9 memory leak/crashing bug that was uncovered in v1.26n. (o)
• Image animation (e.g. Image/Run/Run Benchmark) is now faster when using JDK 1.3. (n)
• Thanks to Greg Joss, Analyze/Histogram now has a log scaling option. (n)
• Dialog boxes on the Macintosh no longer have extra space at the top. (n)
• Fixed a bug that caused an exception with Analyze/Analyze Particles when no image was open. (n)
• Submitted a bug report and test case to Apple regarding the poor performance of ImageJ on Mac OS X.
• Updated the Plasma plugin/benchmark.
• The RGB Stack Merge, RGB Stack Splitter and HSB Stack Splitter plugins are now faster.
• Eugene Tkachenko contributed a plugin that merges up to four 8-bit stacks into one RGB stack.
• Amrit Aneja contributed a plugin that copies/pastes images to the system clipboard (requires JDK 1.4).
• Thanks to code contributed by Heinz Klar, the Median filter is much faster and the Median, Minimum, and Maximum filters work with images outside the range 0-255 and with non-integer radii. (k)
• Added the Process/Filters/Show Circular Masks command that uses a stack to display one hundred of the masks used by the Median, Minimum, Maximum and Mean filters. (k)
• Thanks to code contributed by Jason Orendorff, the number of zoom tool magnification levels increases from 11 to 21. (k)
• Jim Ekstrom is using ImageJ with his "Ugly Bug" contest.
• The Path Writer plugin saves ROIs as a list of evenly spaced points.
• Added constructors to the FloatProcessor that accept int and double arrays. (j)
• Image/Rotate/Arbitrarily now now does 180 degree rotations correcly. (j)
• Nick Linnenbrugger contributed the FFTJ and DeconvolutionJ plugins.
• Kas Thomas contributed the Color Picker plugin.
• Added cyan, magenta and yellow LUTs to the Image/Lookup Tables submenu. (i)
• Tool changes are now recordable. (i)
• With single images, Analyze/Analyze Particles now displays the particle count and threshold levels when "Show Results" is not checked. With stacks, it always displays the particle count for each slice. (h)
• Daniel Sage and Michael Unser of the Swiss Federal Institute of Technology Lausanne have written a paper that describes how they use ImageJ to help teach image processing.
• Added Cut, Copy, Paste and Print commands to Plugins/Edit. (g)
• Fixed an OS X image window closing bug. (f)
• Line profile plots are now generated using bilinear interpolation. (f)
• The RGB Stack Browser plugin by Kunito Yoshida allows the user to browse each channel of an RGB stack.
• The ROI Importer plugin creates a freehand ROI from a text file list of coordinates.
• Fixed a bug in v1.26d that caused null pointer exceptions when processing byte images. (e)
• Added an "Vertical Profile" checkbox to Edit/Options/Profile Plot Options. (d)
• Added support for DICOM MONOCHROME1 Photometric Interpretation. (d)
• Most commands process stacks much faster. Edit/Invert, for example, inverts a 256x256x256x8-bit stack 13 times faster! (c)
• Image/Stacks/Plot Z-axis Profile now works with the "Limit to Threshold" option in Analyze/Set Measurements. (b)
• Newly opened image windows are less likely to extend off the bottom of the screen. (b)
• The state of "Scale When Converting" in Edit/Options/Miscellaneous is no longer saved to the preferences file. (b)
• The "Draw" and "Fill" options in Analyze/Tools/ROI Manager are now undoable. (b)
• Plugins/Compile and Run now uses the -deprecation option. (a)
• File/Save As/XY Coordinates now saves absolute coordinates instead of coordinates relative to the selection's bounding rectangle. (a)
• Plugins/Utilities/Commands is now faster. (a)

V 1.25, 3-November-2001

• On the Mac, files dropped on the ImageJ icon are opened, the Apple menu "About" command works, and the Apple menu "Quit" command saves preferences and prompts to save changes. Note: drag and drop may not work until you delete all older versions of ImageJ and rebuild the desktop. (t)
• File/Revert revert now works correctly when pasting. (s)
• Fixed a bug that could cause an exception after having used Image/Crop. (s)
• Added the addTool() method to the Toolbar class. (r)
• Added Window/Cascade and Window/Tile commands. (q)
• Fixed a bug that caused images saved using File/Save As/ZIP to lose calibration. (q)
• Added support for bitmap and ARGB image types to File/Import/Raw. (p)
• Edit/Undo now works after using Image/Type to convert 16 and 32 bit images to another type. (p)
• Numbers are now always displayed using a decimal point. (p)
• Fixed a bug that could cause an exception after having used the text tool. (p)
• Joachim Walter has written a plugin that does gaussian filtering in fourier space.
• Werner Bailer has written a plugin for doing Discrete Cosine Transforms.
• An updated version of the Werner Bailer's plugin writing tutorial (v. 1.5) is available at http://www.fhs-hagenberg.ac.at/staff/burger/ImageJ/tutorial/.
• The Gaussian Blur and Unsharp Mask filters are now much faster. (o)
• Fixed a bug in Image/Stacks/Reslice that cuased it to fail with 32-bit stacks. (o)
• Analyze/Analyze Particles now correctly processes a single slice in a stack. (m)
• The Brightness/Contrast and Threshold tools no longer leave threads running when the window is closed. (l)
• The Image/Adjust/Brightness/Contrast tool has a new "Set" button and improved histogram support. (l)
• Amrit Aneja has put together a collection of 72 plugins from the ImageJ Web site.
• Added support for the Window Center and Window Width DICOM tags. (i)
• Kurt De Vos has written a cell counting plugin.
• Removed the TextPanel from the main ImageJ window and added a separate "Results" window. (h)
• Added an option to Analyze/Analyze Particles to display fitted ellipse for each particle. (f)
• Analyze/Analyze Particles now displays the labels for particle outlines in red. (f)
• Mike Martin has written a plugin for opening uncompressed Planetary Data System (PDS) images.
• Added the Analyze/Tools/ROI Manager command. (e)
• Added a "Zip" and "Text" choices to File/Save As/Image Sequence. (c)
• Added a "Fit Ellipse" option to Analyze/Set Measurements which adds "Major", "Minor" and "Angle" columns to the results table. (b)
• Tony Parker has written a plugin that allows the user to align two stacks.
• Erik Meijering has written a package of plugins (TransformJ) for geometrical transformation and manipulation (chunking, embedding, mirroring, rotation, shifting, scaling or resizing, affine transformation) of up to four-dimensional (4D) images.
• Fixed a bug that caused ImagePlus.setCalibration() to reset the xOrigin and yOrigin fields. (a)
• Fixed a rounding error in Process/Noise/Add Noise. (a)

V 1.24, 7-Sept-2001

• Added the Hypervolume Shuffler plugin by Michael Abràmoff.
• Fixed a bug in Process/Filters/Convolve that caused the dialog box not to show after the first time. (t)
• Removed 20 item limit in GenericDialog class. (r)
• Updated AVI Writer plugin.
• Added the Stack Builder plugin by Nicolas Roggli.
• Updated the Plugins Control Panel plugin.
• Fixed a bug in the IJ.run() method used my the command recorder. (q)
• Added Embyos and Leaf images, contributed by Larry Reinking, to the File/Open Samples submenu. (q)
• Larry Reinking, Department of Biology, Millersville University, has written two great ImageJ handouts: ImageJ and Examples of Image Analysis Using ImageJ.
• ImageJ now opens uncompressed TIFF bitmap images. (p)
• ImageJ now opens the "hybrid" TIFF/DICOM files created by GE-Senographe 2000 D mammography systems. (p)
• Added the Batch Statistics plugin.
• The location of the plugins directory can now be specified from the command line. See the Linux x86 installation notes for an example. (n)
• File/Open can open PNG images if ImageJ is running on a Java 2 JVM.
• Improved Plugins/Utilities/Panel.
• Added a link to a new plugin that uses cubic spline interpolation to resize images. This plugin was written by Daniel Sage of the Biomedical Imaging Group at the Swiss Federal Institute of Technology.
• Updated the AVI Writer plugin to use the frame rate specified in Image/Stacks/Animation Options (requires ImageJ v1.24l).
• Analyze/Analyze Particles has a new option to display selected particles in black on a white background. (k)
• Modified the Mouse Listener example plugin to display the mouse pressed event modifiers and to keep a list of images it is listening to.
• Image/Show Info displays the frame rate of imported NIH Image movies. (j)
• Non-image windows are listed in the Window menu. (j)
• Fixed bugs in the setImage(), setProcessor() and setStack() methods of the ImagePlus class. (j)
• Analyze/Tools/Save XY Coordinates works with all image types. (h)
• With non-rectangular selections, Image/Crop keeps the selection. (h)
• Image/Colors displays more colors. (h)
• Double-clicking on the straight line tool displays the Line Width dialog. (h)
• Analyze/Analyze Particles now works with stacks. (g)
• The location and size of the ImageJ window is now recorded in the preferences file (IJ_Prefs.txt). (g)
• Most commands that generate an image now include the name of the original image in the title. (g)
• Made the text tool easier to use. (g)
• On systems other than the Macintosh, changed the order of the buttons in the "Save Changes" dialog box. (g)
• Added the Help/ImageJ Web Site command that launches a browser and has it open the ImageJ home page. (g)
• Maja Kizic and Muris Borovac at Chalmers Lindholmen University College, Gothenburg, Sweden have written a bachelor's thesis that evaluates the usability of ImageJ's user interface and offers suggestions on how it can be improved.
• Added ability to cut, copy and paste non-rectangular selections. (e)
• 32-bit stacks can now be converted to 16-bit stacks. (e)
• 8-bit stacks can now be converted to 16-bit stacks. (d)
• Fixed a bug in Process/Subtract Background that caused bluring of the background subtracted image. (d)
• Process/Image Calculator now resets the display range. (b)
• Process/Subtract Background now works with stacks and with images without inverted LUTs. (a)
• Added the Process/Math/Square, Process/Math/Square Root and Image/Rename commands. (a)

V 1.23, 22-June-2001

• ImageJ now opens uncompressed RGB DICOM images. (w)
• Thanks to Java2HTML, the ImageJ source code is now online in a colorized and browsable format.
• Improved the check done at startup for duplicate classes in the plugins folder. (v)
• Add the Process/Filter/Unsharp Mask command. (t)
• Added Gaussian Blur, Median, Mean, Minimum (grayscale erosion) and Maximum (grayscale dilation) filters to the Process/Filters submenu. (s)
• Added the List Opener plugin for opening images using a text file list. (q)
• Added the PlotWindow.addErrorBars() method and a plugin that demonstrates how to use it. (q)
• Image/Adjust/Brightness/Contrast and Image/Adjust/Threshold now work with locked, non-RGB images. For example, you can be running Image/Bencharks/Waves and adjusting brightness/contrast at the same time. (p)
• On Macintoshes, the ImageJ window is smaller and the menu bar no longer disappears when switching to none image windows. (p)
• The "Apply" option in Image/Adjust/Brightness/Contrast now works correctly with color LUTs. (o)
• Added a Mac OS X distribution.
• Deleted Image/Stacks/Save Slices as Files and replaced it with File/Save As/Image Sequence. (m)
• Changed the name of File/Import/All As Stack to File/Import/Image Sequence and added the ability to convert the images to 8-bits and/or open them half sized, resulting in stacks that use as little as 1/16th as much memory. (m)
• Fixed a bug in Analyze/Calibrate that caused the "Global" option to not work correctly. (m)
• Added the Edit/Options/Foreground Color and Edit/Options/Background Color commands. (m)
• The ImagePlus(String) constructor now works with both paths and URLs. (m)
• Added the Opener.OpenImage(String) method for opening images using a path. (m)
• Fixed a bug in the QuickTime Movie Opener plugin that could result in duplicate or missing frames.
• Added the AVI Writer plugin.
• The Clear, Clear Outside and Fill commands can now process entire stacks. (k)
• Commands that process entire stacks now work with selections. (k)
• Fixed several problems with the DOES_STACKS and SUPPORTS_MASKING options of the PlugInFilter interface. (k)
• Text fields in dialogs are now automatically selected when you click on the field or tab to it. (g)
• Plugins/Utilities/List Properties now displays the directory where ImageJ saves the preferences file (IJ_Prefs.txt) and the directory where it looks for plugins. (f)
• Fixed a binning problem with 16 and 32-bit histograms. (f)
• The "Save As" command in the Plugins editor now changes the class name to match the file name. (e)
• With 16 and 32-bit images, Process/Math/Min and Process/Math/Max now update the displayed image by doing the equavalent of clicking on "Reset" in Image/Adjust/Brightness/Contrast. (e)
• Analyze/Set Scale now displays the scale, which is dynamically updated as the measured and known distances are changed. (d)
• With stacks, Image/Duplicate can now gives you the option of duplicating the entire stack or just the current slice. (c)
• Added the Plugins/Record command (under construction). (a)
• Fixed several problems with histograms of calibrated 16-bit images (e.g. signed FITS images). (a)

V 1.22, 22-Mar-2001

• Upgraded bundled Windows JRE to 1.1.8_006, which fixes JIT crashes on Pentium 4 CPUs and a scrolling problem in popup menus.
• Added an icon for ImageJ.
• An error message is now displayed when, under Windows, the user attempts to maximize the ImageJ window, causing other windows to be hidden. (c)
• Analyze/Summarize now works with line and point measurements. (c)
• The "Auto" feature in Image/Adjust/Threshold now works more reliably. (b)
• Fixed a couple of problems with Analyze/Summarize. (b)
• Image/Adjust/Contrast/Brightness, Image/Adjust/Threshold, Edit/Paste Control and Edit/Options/Fonts now open only one window. If the window is already open, it is brought to the front. (a)
• On the Mac, the MRJ version is displayed by Plugins/Utilities/Show Java Properties. (a)

V 1.21, 27-Feb-2001

• Added the Process/Math/Min and Process/Math/Max commands. (v)
• The wand tool now works more reliable with Analyze/Gels. (v)
• Added the Image/Stacks/Convert Stack to Images command. (u)
• Hold down the alt key with Image/Stacks/Add Slice to add a slice in front of the current slice. (u)
• Analyze/Histogram now uses the number of decimal places defined in the Analyze/Set Measurements dialog. (t)
• Fixed several problems with histograms of floating-point images. (t)
• XY coordinates generated by the crosshair tool are now saved in the ImageJ ResultsTable. (s)
• Fixed several z-axis rotation bugs in Image/Stacks/3D Project. (s)
• Simplex fitting parameters used by the Analysis/Tools/Do Curve Fitting tool can now be adjusted thanks to an improved CurveFitter class contributed by Kieran Holland. (r)
• Image/Stacks/3D Project no longer requires thresholded stacks. Upper and lower transparency bounds are set in the dialog or are set automatically if the stack is thresholded. (r)
• Updated Image/Stacks/Convert Stack to RGB to work with 2-slice stacks (red and green). (r)
• Updated the RGB Stack Merge plugin to work with two stacks (red and green).
• Image/Stacks/Reslice now works with rectangular selections. A rectangular selection is equivalent to a line selection corresponding to the top edge of the rectangle and a "Slice Width" equal to the height of the rectangle. (q)
• Fixed a bug, introduced in v1.20, that caused reslicing of RGB stacks to fail. (q)
• Stacks can now be converted to RGB. (q)
• Added the Resize Canvas plugin contributed by Jeffrey Kuhn.
• "Center of Mass" now reverts to "Centroid" when all pixels are zero. (o)
• DICOM/ACR-NEMA reader improved. (o)
• Fixed bugs, introduced in v1.18, with 16-bit add, subtract and multiple in Process/Image Calculator. (n)
• Image/Adjust/Brightness/Contrast now correctly displays min/max of density calibrated images. (m)
• Improved support for signed DICOM images by using a calibration function to restore the orginal negative values. (m)
• For 16-bit and 32-bit images, File/Import/Raw (with "Open All" checked), File/Import/All As Stack and Image/Stacks/Convert Images to Stack now use the stack min/max to set the display range instead of the min/max of the first image. (l)
• ROI movement via arrow keys no longer stops one pixel early at right and bottom of image. (k)
• Analyze/Calibrate now works with images of type "8-bit Color". (j)
• Added the Plugins/New command. (i)
• File/Open now opens BMP, LUT and ZIP files with upper case file name extensions. (h)
• File/Open now opens text files. (h)
• Added a Paint Brush plugin contributed by Jeffrey Kuhn.
• Added the Stack Histogram plugin.
• For float and calibrated images, File/Save As/Text Image now uses the "Precision" setting in the Analyze/Set Measurements dialog. (f)
• Added Process/Morphology/Euclidian Distance Map and ../Ultimate Eroded Points commands. (c)
• Fixed a bug in Image/Stacks/Render that caused it to generate a blank image when "Total Rotation" was set to zero. (b)
• Maximum values less than zero are now calculated correctly. (a)
• Density calibration information in NIH Image TIFF files is now decoded. (a)

V 1.20, 20-Dec-2000

• Fixed a bug, introduced in ~v1.20n, in the Image/Type/RGB Stack and Image/Type/HSB Stack commands. (p)
• Added the "Bat Cochlea Volume" sample image, useful for testing the Image/Stacks/Render command and Michael Abramoff's VolumeJ plugin. This is a thresholded high resolution MRI dataset of the inner ear of a bat contributed by Art Keating of the University of North Carolina. (n)
• Added the Image/Stacks/Render command, a port of the NIH Image "Project" command written by Michael Castle of the University of Michigan Mental Health Research Institute. (n)
• Pressing the "=" key now starts/stops stack animation. (l)
• Replaced static conversion methods in ImageConverter with the ImageProcessor methods convertToByte(boolean), convertToFloat(), convertToRGB() and convertToShort(boolean). (l)
• Image/ColorTables/Invert LUT now works correctly with stacks. (l)
• Image/Stacks/Next Slice (">") and Image/Stacks/Previous Slice ("<") now skip 9 slices if the alt key is held down. (k)
• Fixed a bug in the ByteProcessor.getAutoThreshold method used by Image/Adjust/Threshold and by Process/Morphology/Threshold. (k)
• A rare problem with endless rapid switching between windows is now (hopefully) fixed. Use the Focus Bouncer plugin to test for this problem. (i)
• Class files in the plugins folder that have duplicates in subfolders are now automatically deleted. (h)
• The Plugins/Shortcuts/Install Plugin command can now install plugins in the Filters, Tools and Utilities submenus. (g)
• Moved the Do Curve Fitting, Fractal Box Count , Save XY Coordinates, Analyze Line Graph and Do Curve Fitting commands to the new Analyze/Tools submenu. (g)
• The cross hair tool can now display results in calibrated units. (g)
• Added the Process/Filters/Convolve command for performing convolutions using user-defined real kernels. (g)
• Thumbnail images contained in some TIFF files are no longer displayed. (d)
• The Image/Adjust/Threshold tool now works with 16-bit and 32-bit images. (b)
• Added an "Apply" button to the Plugins/Utilities/Do Curve Fitting window that creates a new 32-bit image by using the curve fit function to transform the active image. (b)
• Plugins in subfolders of the plugins folder are now installed in submenus of the Plugins menu. (a)
• Fixed a bug in the plugin class loader that prevented newly compiled plugins from replacing previously loaded versions. (a)
• Added a plugin, contributed by Cezar M. Tigaret, that uses a tabbed panel to provide access to plugins in subfolders of the main "plugins" folder.

V 1.19, 26-Oct-2000

• Added direct 16-bit to RGB and 32-bit to RGB conversions. (x)
• Fixed a bug that sometimes caused the color LUT not be saved when saving an 8-bit image in TIFF format. (x)
• Fixed a bug that sometimes caused color LUTs to be reset to grayscale when converting to or from 16-bits or 32-bits. (x)
• Image/Show Info now displays density calibration information. (w)
• Fixed a bug in the cross hair tool that caused it to ignore foreground color changes. (v)
• Changed the name of the Hot Keys submenu to Shortcuts. (v)
• Added red, green and blue LUTs to the Image/Color Tables submenu. (u)
• Added a plugin that saves stacks as QuickTime movies.
• Fixed a bug in the TiffEncoder class that prevented other applications from being able to read 8-bit color tiff stacks created by ImageJ. (t)
• Added a "Scale When Converting" checkbox to Edit/Options/Miscelleaneous that allows auto-scaling of data type conversions to be disabled. (r)
• Added "Copy All", "Clear Results", "Summarize" and "Set Measurements" commands to the worksheet popup menu. (r)
• Added three example plugins (FOV Calculator, Gear Math, and Circle Test) contributed by Joshua Gulick.
• The calibration function, if there is one, is applied to the pixel data when converting 8-bit and 16-bit images to 32-bit floating-point. (q)
• Improved support for signed 16-bit FITS images by using a calibration function to restore the orginal negative values. (q)
• Added a "Precision" field to the Analyse/Set Measurements dialog for specifying the number of digits (0-8) displayed after the decimal point. (n)
• Added the addLabel(heading, label) method to the ResultsTable class. (n)
• Added an option to Analyze/Set Measurments to label rows in the results table with the file name and slice number. (l)
• Settings in Edit/Options/Profile Plot Options are now saved. (k)
• ImageJ now opens 8-bit color palette DICOM images. (j)
• Fixed a NullPointerException bug in File/Import/All As Stack that was triggered when the first file in the folder was not an ImageJ compatible image. (i)
• Added the Background Task plugin as an example of how to do time-consumming background processing.
• Added a plugin that generates 3D surface plots.
• The "Apply" button in the Image/Adjust/Brightness/Contrast tool will now apply the current brightness and contrast settings to the entire stack. (g)
• Fixed a bug, introduced in v1.18, in the Image/Adjust/Brightness/Contrast tool that limited "min" and "max" of 8-bit and RGB images to the range 0-255. (f)
• Fixed a NullPointerException bug in Analyze/Analyze Line Graph. (f)
• The "MRI Stack", "M51 Galaxy" and "Scala Media Stack" sample images now download as ZIP compressed TIFFs. (d)
• The Image/Adjust/Brightness/Contrast tool now works with animated stacks. (d)
• Upgraded File/Import/URL to work with TIFF files. (b)
• The ImagePlus.setSlice() method now updates the slice selection scrollbar. The new ClearOutside plugin takes advantage this feature. (b)
• Same-size images now open at the same magnification (1:1, 2:1, etc.), regardless of their screen position. (a)

V 1.18, 5-Sept-2000

• Worked around a bug that sometimes caused ImageJ to hang when quiting.
• Added the Plugins/Hot Keys/Remove command for uninstalling hot keys and plugins. (u)
• Fixed a bug that sometimes caused the "Y Max" and "Y Min" values in Edit/Options/Profile Plot Options to be reset. (t)
• Fixed a bug that sometimes caused another ImageJ applet window to open when the user switched to another Web page and then returned to the ImageJ applet page. (s)
• Added the Plugins/Hot Keys/Create Hot Key command for assigning keyboard shortcuts to menu commands. (r)
• The title of the plot window produced by Image/Stacks/Plot Z-axis Profile now includes the name of the orginal stack and location of the selection. (r)
• All 16-bit images are now unsigned. Imported signed images with negative pixel values are converted to unsigned by adding 32768. Use masking to access values in pixel arrays (e.g. int i=pixels[i]&0xFFFF). (p)
• Added the Plugins/Hot Keys/Install Plugin command that enables plugins to be installed in the File/Import and File/Save As submenus. Assign a function key by entering "f1"-"f12" in the dialog's "Shortcut" field. (o)
• Fixed a Analyze/Analyze Particles bug that was introduced in 1.18b. (k)
• Fixed a bug that caused Analyze/Measure to set the image's "changed" flag. (k)
• Fixed a bug in GenericDialog that caused it to work incorrectly if the dialog displayed a checkbox or message followed by a numeric field or text field. (j)
• The "Global" option in Analyze/Set Scale and Analyze/Calibrate now works more reliably. (j)
• Images created with File/New no longer inherit the spatial and density calibration of the current image. (j)
• Fixed a bug in ParticleAnalyzer when it's called by a plugin and asked to calculate perimeters. (i)
• Fixed a bug that sometimes caused multiple items in the Window menu to be checked. (i)
• With straight line selections, Image/Show Info now displays the starting and ending coordinates. (e)
• Analyze/Plot Profile now produces the expected reversed results when the same line is drawn in different directions. (e)
• File/Import/Raw settings are now saved in IJ_Prefs.txt. (e)
• Edit/Fill, Edit/Draw and Edit/Clear now work with 16-bit and float images that have min=max=0. (b)
• The ImageProcessor.drawString() method now works with 16-bit and float images. (b)
• Newly created unsigned 16-bit images are now initialized to 0 instead of 32768. (b)
• To prevent annoying pauses, images loaded from a URL, such as those in the File/Sample Images submenu, are now converted to an ImageProcessor before being displayed. (a)

V 1.17, 22-June-2000

• The Object Tracker plugin now allows the min/max object size to be specified.
• Clicking "Apply" in the Image/Adjust/Threshold when the image is in the "B&W" mode no longer displays a dialog. (y)
• Replaced Plugins/IP Demo with Plugins/Panel, a window with buttons for executing plugins in the plugins folder. (y)
• Analyze/Analyze Line Graph now works with thresholded images. (y)
• Added the Batch Converter plugin for converting a folder of images to another format.
• Added the Display Updater plugin that sets an image's min and max displayed value. (w)
• Added a constructor to GenericDialog that doesn't require a parent frame. (w)
• Fixed a spatial calibration bug in Image/Adjust/Size . (w)
• Added the "Fluorescent Cells" sample image and removed "Peppers"
• Added the FFT plugin.
• Edit/Invert now works with 16-bit unsigned images. (t)
• Added the IJ.run() method so plugins and macro interpreters (e.g. BeanShell) can more easily run ImageJ menu commands. This method runs in the current thread and does not return until the command has finished. (s)
• Added the Text Demo plugin that demonstrates how plugins can add text to images. (s)
• Fixed a bug in ImageProcessor.drawString() that caused text larger than 12-points to not be displayed correctly. (s)
• The fitted line in Analyze/Fractals/Box Count is now displayed correctly. (r)
• Worked around a problem opening Spot Camera TIFF files. (r)
• Added the Plugins/Edit command for editing, compiling and running plugins. Requires a Java Virtual Machine(JVM) that includes the javac compiler, such as one of the JDKs from Sun or Apple's MRJ plus the Java Software Development Kit. Note that the JRE 1.1.8 distributed with the Windows version of ImageJ does not include javac. When using JDK 1.2 or JDK 1.3, the tools.jar file must be in the classpath. To include it, run ImageJ using a command something like
     java -cp ij.jar;C:\jdk1.3\lib\tools.jar ij.ImageJ (o)
• All measurements are now stored in a ResultsTable that is available to plugins using Analyzer.getResultsTable().
• Added a plugin that draws arrows and removed the Plugs/Draw Arrow command. (o)
• Added a plugin that does convolutions on real images using user-defined kernels. (j)
• Added the Plugins/Compile and Run command. Like Plugins/Edit, it requires a JVM that inludes the javac compiler. (j)
• The plugins folder no longer needs to be in the classpath since plugins are now loaded using a custom class loader. (j)
• Spatial (e.g. pixels/mm) and density calibration data are now saved with TIFF images. (j)
• Analyze/Analyze Particles is now up to 27 times faster! (i)
• Updated the Image/Benchmarks/Particles benchmark results. (i)
• Added a plugin that illustrates how to extend ImageJ's Particle Analyzer. (g)
• The Analyze/Line Analyzer command now creates plots whose size is based on the size of the selection, not on the size of the curve being digitized. (f)
• Added the Analyze/Calibrate command for calibrating 8-bit images to density standards. (e)
• Added a "Standard Deviation" option to Image/Stacks/ZProject. (e)

V 1.16, 8-May-2000

• Fixed a 1.15 bug that caused incorrect measurements of non-rectangular areas. (f)
• Added a method that displays an error message and returns true if the ImageJ version is less than the one specified in the argument. For example, if (IJ.versionLessThan("1.16c")) return. (c)
• Analyze/Fractals/Save XY Coordinates now saves the XY coordinates and pixel value of all non-background pixels . (b)
• With 8-bit stacks, Image/Stacks/Convert Stack to RGB now displays the RGB image in a new window. (a)
• Fixed a bug that caused status bar cursor y-coordinates to be incorrect when the Pixel Aspect Ratio in Analyze/Set Scale was not equal to 1.0. (a)
• Fixed a bug in Image/Stacks/Delete Slice that caused the slice selector to be positioned incorrectly. (a)

V 1.15, 27-April-2000

• Fixed a bug in Image/Stacks/Delete Slice that resulted in a blank window title.
• On systems with JDK 1.2 or JDK 1.3 installed, you can now run ImageJ by double clicking on the ij.jar file. On Windows NT/2000, this method avoids the annoying DOS window.
• The ij.jar file is now compressed, reducing its size from 778K to 432K.
• The Primes plugin provides an example of how to process mouse moved interrupts. (z)
• All Analyze/Measure results now use spatial calibration defined using Analyze/Set Scale. (v)
• Analyze/Analyze Particles summary results are now reported in calibrated units such as mm^2. (v)
• Analyze/Analyze Line Graph now plots and saves coordinate data using calibrated units. (v)
• Fixed a bug that caused Analyze/Analyze Line Graph to corrupt the source image. (v)
• Fixed a bug that caused File/Open to not "see" some DICOM files. (v)
• Image/Stacks/Plot Z-axis Profile now displays all measurements specified in Analyze/Set Measurements.
• Added a plugin that reverses the order of the slices in a stack.
• Added a "Global" option to Analyze/Set Scale that causes all images to use the same spatial calibration.
• Double-clicking on the line tool displays the Analyze/Set Scale dialog.
• Double-clicking on the freehand outlining tool displays the Analyze/Set Measurements dialog.
• Analyze/Gels/Label Peaks now labels each peak with its area as a percent of the total area.
• Fixed a bug in Analyze/Gels that generated extra measurements when using the shift key shortcut to scroll.
• When it can't recognize the header format, File/Open now displays a dialog listing the supported image types (TIFF, JPEG, GIF, BMP, DICOM, FITS, PGM, ZIP or LUT). (m)
• When processing stacks, Image/Adjust/Size, Image/Crop and Image/Rotate/* are now better at showing progress. (l)
• Double-clicking on dropper tool displays the "Colors" window but doesn't switch tools. (k)
• The Image/Adjust/Threshold "Apply" option is now undoable. (h)
• The dropper in the toolbar is now outlined with a box drawn in the background color. (g)
• Alt-click in the Image/Colors window to set the background color. (g)
• "Apply" in Image/Adjust/Threshold now displays a dialog with options for setting thresholded pixels to the foreground color and non-thresholded pixels to the background color. (g)
• "Min & Max", "Centroid" and "Center of Mass" calculations now ignore non-thresholded pixels if "Limit to Threshold" is checked in Analyze/set Measurements. (g)
• Added File/Save As/ZIP for saving an image in TIFF format within a compressed ZIP archive and extended File/Open to read files created by this command. (f)
• Changed the labels in Process/Image Calculator to "Image1" and "Image2". For all operators, clicking "OK" now calculates image1=image1<op>image2. If "Create New Window" is checked, a new window is opened to store the result and "image1" is left unchanged. (f)
• Fixed a bug in Process/Image Calculator that sometimes caused the first stack slice to not be processed. (d)
• Multi-image tiff files with images that are not all the same size and type now open in separate windows. (c)
• Fixed a bug that caused pasting of images with Edit/Paste Control modes other than "Copy" to fail. (b)
• Changed the definition of "difference" in Process/Image Calculator from dst=(src-dst)/2+128 to dst=abs(src-dst). (b)
• Added a "Create New Window" option to Process/Image Calculator. (b)
• The "Apply" button in Image/Adjust/Threshold now works with stacks. (a)

V 1.14, 23-Feb-00

• Fixed a v1.13 bug that caused Analyze/Analyze Particles to fail when "Perimeter" was checked in Analyze/Set Measurements . (c)
• Edit/Cut now fills with the same background color as Edit/Clear. The only way currently to change the background color is by editing the value of "bcolor" in IJ_Prefs.txt. (a)
• Added a "Bounding Rectangle" option to Analyze/Set Measurements. When this option is checked, the bounding rectangle of the selection is displayed using the headings "BX", "BY", "Width" and "Height". (a)

V 1.13, 18-Feb-00

• With 16-bit and real images, Edit/Fill and Edit/Clear now fill with zero if the foreground or background color respectively is black, the images minimum pixel value is not less than zero and the LUT is not inverted. The background color can be set to black by changing the value of "bcolor" in IJ_Prefs.txt to #000000. (w)
• Added keyboard shortcut support for plugins. For examples, look at the entries for File/Open Samples/Blobs, Plugins/IP Demo and Plugins/Draw Arrow in IJ_Props.txt. Note: you don't have to hold down the control key to use menu shortcuts. (u)
• Moved Image/Adjust Contrast and Image/Adjust Threshold to the new Image/Adjust submenu. (u)
• Fixed a bug that caused the middle point in lines generated by Analyze/Plot Profile and Image/Stacks/Reslice to be doubled. (t)
• Added to the Analyze/Analyze Particles dialog box, a field for setting the number of bins used in size distribution histograms, and "Display Summary", "Exclude Edge Particles" and "Clear Worksheet" check boxes. (t)
• Added to Edit/Options/Miscellaneous, a field for setting the number of bins used in histograms of 32-bit real images. (s)
• Edit/Draw and the crosshair tool now work with 16-bit and real images as long as the image's maximum pixel value is not equal to its minimum. (r)
• Double-click on the eyedropper tool to display the "Colors" window. (q)
• Added the crosshair tool for counting, measuring and marking points. Marks are drawn in the foreground color. Double-click on the crosshair tool to change the mark size. To not leave a mark, set the size to zero. (p)
• Analyze/Fractals/Box Count now plots log count vs. log box size and calculates the fractal dimension. (p)
• Added the Plugins/Do Curve Fitting command for fitting functions to data. (j)
• The Image/Stacks/Save Slices as Files dialog now allows the user to specify the file name prefix and number of digits. (h)
• Added a plugin for tracking one or two objects through a stack. (c)
• File/Import/All as Stack now uses a progress bar and no longer displays the file names in the status bar. (b)
• Fixed a v1.12 bug that caused the ImageJ applet to fail to load when using the Netscape browser. (a)

V 1.12, 18-Jan-00

• Changed the name of the File/Open submenu to File/Open Samples. (z2)
• Changed the name of the File/Acquire submenu to File/Import. (z1)
• Removed DICOM, BMP and FITS from the File/Acquire submenu. These file types can be opened using the File/Open command. (z1)
• Keyboard focus in the File/Acquire/Raw dialog is now set to the first numeric field. (z1)
• Changed the name of the ij.properties file to IJ_Props.txt. (y)
• User preferences are now saved in a text file named "IJ_Prefs.txt". This file is saved in the Preferences folder on the Mac, in the user's home directory on Unix, and in the ImageJ folder on Windows. The drawing color, roi color, default directory, jpeg quality and measurement options are currently saved. Two preferences that cannot be set in ImageJ, background color and size distribution bins, can be changed by editing IJ_Prefs.txt. (v)
• Removed the double quotes from the Image/Show Info text window's title bar. These quotes sometimes caused the Save As command in the text window popup menu to fail. (t)
• Added the "Limit to Threshold" checkbox to Analyze/Set Measurements. When this option is checked, only thresholded pixels are included in measurement calculations. (s)
• Added a link to Michael Abrˆmoff's volume rendering plugin.
• Fixed several text window scrolling and selection problems. (r)
• Process/Math/Gamma and Process/Math/Log now work correctly with 16 and 32-bit images. (n)
• The wand tool now works with thresholded images. (m)
• Image/Show Info now displays the threshold levels. (k)
• Fixed a bug in Process/Math that occured when canceling an operation on a stack. (k)
• Fixed a bug that caused problems when changing the data type of an image being manipulated by the Image/Adjust Contrast tool. (k)
• Lowered the default position of the ImageJ window by 32 pixels to avoid the MS Office task bar. (i)
• Updated Analyze/Analyze Particles to use the upper and lower threshold levels defined by the Image/Adjust Threshold and Image/Adjust Contrast tools. (h)
• Added the Image/Adjust Threshold tool for interactively separating features of interest from background. This is similar to "density slicing" in NIH Image. As a shortcut, type shift-T to activate this tool. This tool currently only works with 8-bit images. (h)
• In addition to TIFF, JPEG, GIF, DICOM, and FITS, File/Open and File/Acquire/All as Stack also now work with ACR/NEMA files. (g)
• File/Acquire/All as Stack and Image/Stacks/Save Slices as Files work more reliably when free memory is low. (f)
• Out of Memory messages should be less likely when processing stacks with Smooth, Sharpen or Find Edges. (f)
• The progress bar is now displayed correctly after the ImageJ window is resized or uncovered. (d)
• The x-axis labeling in profile plots. (d)
• Worked around a v1.10 and v1.11 flickering problem with someJVM's when Analyze/Analyze Particles was displaying a large number of measurements in the ImageJ window. (c)
• Worked around a scroll bar problem in v1.10 and v1.11 that showed up when running on the Mac and on some versions of the Microsoft JVM. (b)
• High filter processing rates are now reported in the status bar in millions of pixels per second. (b)

V 1.11, 9-Dec-99

• Added y-axis labels to profile plots. (z)
• Fixed several bugs in Image/Stacks/ZProject. (w)
• Type converted images are marked as changed. (v)
• The window title bar is updated when an image is saved under a new name. (v)
• Pressing Enter (or Return) is now equivalent to clicking "OK" in most ImageJ dialog boxes. (u)
• Replaced the "Save..." button in the Analyze/Histogram window with "List", which lists the histogram values in the ImageJ window. (u)
• Image/Duplicate now displays a dialog allowing the title of the new window to be specified. Hold the alt key down to skip the dialog. (t)
• Added the Edit/Options/Divide by Zero command for specifying the value used by the Image Calculator when it detects divide by zero with 32-bit real images. (t)
• Updated the Keyboard Shortcuts Table.
• Added the Window/ImageJ command (shortcut=enter) for bringing the ImageJ window to the front. (s)
• Added the Analyze/Analyze Line Graph command for extracting coordinate data from scanned line graphs. It is similar to NIH Image's Line Plot -> Data macro. (r)
• Added a constructor to the PlotWindow class for generating XY line graphs. See ij/plugin/filter/LineGraphAnalyzer for an example. (r)
• With 32-bit float images, Analyze/Image Calculator now detects divide by zero and sets the result to Float.MAX_VALUE (3.4e38). (q)
• Process/Image Calculator will now optionally process entire stacks if the source and destination are stacks with the same number of slices or the source is a single image and the destination is a stack. (p)
• Conversion of 8-bit and 16-bit stacks to 32-bits is now supported. (p)
• For RGB images, Analyze/Histogram displays a luminance histogram instead of a histogram all red, green and blue values. This is the way it worked prior to v1.07. (n)
• Added a "List" button to profile plot windows that displays the XY coordinates in the ImageJ window. (n)
• Added the Image/Stacks/Plot Z-axis Profile command for plotting the ROI means of the slices in a stack. (m)
• Fixed a bug that, when quiting ImageJ, caused "cancel" in the save changes dialog for stacks to be ignored. (m)
• Fixed a bug in v1.10 that sometimes caused histogram min and max to be set to zero. (m)
• Fixed a bug, introduced in v1.07, that caused area measurements of RGB images to be three times too large. (m)
• Fixed a problem with text not being displayed in Histogram windows on Windows NT. (j)
• In Analyze/Set Scale, in addition to setting "Unit of Measurement" to "pixel" or "Distance in Pixels" to 0, you can now also disable spatial calibration by clearing the "Unit of Measurement" field.
• Added Edit/Clear Outside command for erasing everything outside the ROI. (f)
• Analyze/Gels/Label Peaks now displays in the ImageJ window the band sizes as a percentage of the size of the largest band. (e)
• Added an image autocorrelation plugin by Markus Hasselblatt.
• DICOM images, without a .dcm extension, and FITs images can now be opened using File/Open and File/Acquire/All As Stack. (c)
• Image/Show Info now displays the DICOM tags. (c)
• The "Apply" option in Image/Adjust Contrast, when working with a stack, now allows the user to choose between applying the LUT to the current slice or to the entire stack. (c)
• Fixed a v1.10 text selection problem. (c)
• Added YesNoCancelDialog class. (c)

V 1.10, 8-Nov-99

• The histogram display in the Image/Adjust Contrast tool is now double buffered to prevent flicker. (u)
• Added a "Thresh" (threshold) button to the Image/Adjust Contrast tool. Use the brightness slider to adjust the threshold. Use the slider's arrows to make fine adjustments. (t)
• Extended the DicomViewer sample program to display the header information. Chris Rorden's DICOM page is a good place to get more information about the DICOM standard.
• The DICOM reader now reads files with "??" VRs. (s)
• Fixed a bug that caused RGB stacks to be read incorrectly. (q)
• Replaced (again!) the text panel in the ImageJ window with one based on the hGRID class at ftp://rsbweb.nih.gov/pub/image-j/examples/hGrid/. The new text panel features unlimited size, resizable columns and a popup menu for saving to a file or copying to the system clipboard. Right-click (command-click on the Mac) in the text panel to access this menu. Measurement results can also be copied to the clipboard using Edit/Copy or control-C (command-C on the Mac). Rows to be copied must first be selected using the mouse or the popup menu. Shift-click to extend a selection. The number of lines copied to the clipboard is displayed in the status bar. (p)
• Added the File/Save As/Measurements command for saving measurement results to a tab-delimited text file. (p)
• The arrow keys, with the alt key held down, now move the end of line selections. (p)
• Added center of mass measurement option that works with 8-bit and 16-bit images. The center of mass is the pixel value weighted average of all the x and y coordinates in the selection. (i)
• Added centroid measurement option. The centroid is calculated by averaging the x and y coordinates of all of the pixels in the selection. (h)
• Added perimeter measurement option. Perimeter is calculated using the same algorithm as NIH Image, where edge pixels are counted as one and corner pixels as square root of two. (h)
• Changed the name of Image/Get Info to Show Info. (h)
• Show Info now displays DICOM and FITS header information. (h)
• Multi-image DICOM files now open as a stack. (h)
• Analyze Particles can now be canceled using the esc key. (h)
• Fixed a bug in Analyze Particles that caused it to fail with images containing thousands of particles. (h)
• Added the Particles sample image, contributed by Katriona Lightbody. This 2000x1000 binary image containing 5097 particles is useful for stress testing and benchmarking Analyze Particles. (h)

V 1.09, 19-Oct-99

• Replaced the text panel in the ImageJ window with an improved version based on the Viewer class by Rene Grothmann. This version has no arbitrary size limit, supports color, and features a popup menu for saving the contents of the panel to a file or to the system clipboard. Right-click (command-click on the Mac) to access this menu.
• Moving small (less than 25x25) rectangular ROIs causes the pixel value to be displayed in the status bar. Can be used, in conjunction with the arrow keys, to inspect individual pixels.
• Added Analyze/Set Measurements to specify the values to be calculated and recorded by Analyze/Measure.
• Added a progress bar to File/Save As Jpeg.
• Default Jpeg compression quality increased from 50 to 75.
• Newly opened grayscale Jpegs are automatically converted to 8-bits.
• Added nine new sample images to the File/Open submenu.
• Added File/Aquire/As Text File for opening text files in read-only mode.
• Image/Rotate now use bilinear interpolation and rotates entire stacks.
• The Process/Math command was converted to a submenu.
• Image/Type now supports 16-bit to 32-bit and 32-bit to 16-bit conversions.
• Added a plugin that does MRI t2 calculations (s2 = k/ln(s1/s2)) on two images or stacks.
• Added plugins that load and save images in Analyze, PNG, Pict, SPE, AHF and other formats.
• Process/Math/Log now works correctly for float images.
• ImagePlus.getProperties() now automatically constructs a property object instead of returning null.
• Added the TextWindow class that plugins (e.g. ij/plugin/System_Properties.java) can use to display text in a window.
• Added ImagePlus.startTiming() method so filter plugins (e.g. ij/plugin/filter/Rotator.java) can avoid having dialog open times including in the displayed processing time.
• Added OpenFile and SaveFile classes that plugins can use for opening and saving images. See the I/O plugins on the plugins page for examples.
• Added the ImagePlus.setProperty(String,Object) method.

V 1.08, 21-Sept-99

• Added the Image/Stacks/Reslice and Image/Stacks/ZProject commands. Descriptions of these commands are in the online manual. They were contributed by Patrick Kelly and Harvey Karten of the University of California, San Diego.
• Added a bilinear interpolation option to the Image/Scale and Image/Transformations/Resize commands.
• Added the Process/Repeat Command command for repeating the previous command. Note that the Undo and Close are ignored.
• Added a batch file to the Windows distribution for running ImageJ using Microsoft'sJava. It contains the single command "jview /cp ij.jar;plugins ij.ImageJ".
• Added the ImageProcessor.setInterpolate(boolean) method.
• Added the ImagePlus.show(String) method for displaying an image in a window with a message in the status bar. The ZProject and Reslice commands use this method to display the processing time.
• Fixed a rounding bug that caused Image/Scale and Image/Transformations/Resize to work incorrectly along the edge of images with an odd width or odd height.

V 1.07, 3-Aug-99

• File/Save As/Tiff and File/Save As/Raw Data now support RGB and float stacks.
• Added a plugin (ftp://codon.nih.gov/pub/image-j/plugins/RGB_Stack_Merge.java) for merging three 8-bit stacks into one RGB stack.
• Added support for 8-bit indexed color to grayscale stack conversions.
• Added the Image/Stacks/Make Montage command for creating a composite image from the slices in a stack.
• Released a Mac 1.07 version that adds the File/Acquire/Video command for capturing images from QuickTime compatible video sources. Requires QuickTime for Java, a QuickTime 4.0 custom install. QT 4.0 is not required, but you have to use the QT 4.0 installer to install QT for Java (do a custom install).
• Process/Equalize now works much better thanks to an improved histogram equalization algorithm contributed by Richard Kirk that uses the square root of the histogram values. Process/Equalize also now works with 16-bit images. Hold down the alt key use the standard histogram equalization algorithm.
• Removed the Process/Enhance Contrast command. As a substitute, use Process/Equalize or the "Auto" button in the Image/Adjust Contrast window. The "Auto" button has the advantage of not altering the pixel values except for RGB images.
• Added Process/Repeat, which repeats the previous command.
• File/New can now create unsigned 16-bit images.
• For RGB images, Analyze/Histogram now displays the histogram of all red, green and blue values. Previously it displayed a luminance histogram.
• Clicking on an image's close box now invokes the File/Close command, which runs as a separate thread, instead of closing the image in the event queue thread. This should make exceptions and thread deadlocks less likely.
• Changed the title of the IJ.error() dialog from "Error" to "ImageJ".
• Changed the argument of the ImageProcessor.applyTable method from byte[] to int[] so it can be used with 16-bit images.
• The ImageWriter class now writes short and float images using little-endian byte order if FileInfo.intelByteOrder is set true.
• For stacks, ImagePlus.getFileInfo() now sets FileInfo.pixels to an array of images.
• The ImageProcessor.getHistogram method now works with 16-bit images.
• Added IJ.altKeyDown method for determining if the alt key is down.
• Added the ImageProcessor.drawString method for drawing text on images. Use moveTo(x,y) to specify the position and getStringWidth() to determine how many pixels will be required to draw the text.
• Fixed a recently introduced bug that caused File/Acquire/Raw to not work with RGB images.
• Fixed a bug that sometimes caused the the slice selector to become invalid when converting a stack to a different data type.

V 1.06, 2-July-99

• Plugins in the plugins folder are no longer loaded using a custom class loader. Consequently, the plugins folder must be in the classpath. This change fixes a bug that caused static variables in plugins to be reset.

V 1.05, 1-July-99

• The Image/Stacks/Convert Stack to RGB command now works with 16-bit stacks.
• Conversion of 16-bit stacks, real stacks and RGB stacks to 8-bit grayscale is now supported.
• Added "Add Slice", "Delete Slice" and "Convert Images to Stack" commands to the Image/Stacks submenu.
• Added the File/Acquire/Text command for opening tab-delimited text files as real images.
• Values displayed in histograms of real images are now better formatted.
• Analyze/Gels/Plot Lanes now displays large plots in an enlarged window zoomed 1:1.
• Added the Analyze/Gels/Label Peaks command.
• The Gel Analyzer now converts pixel values to uncalibrated OD before plotting the lanes. It also adds half the perimeter to the peak area to compensate for the area under the boundary line.
• A 3-point running average is now used to measure freehand line lengths.
• ImageJ now looks for the plugins folder in the folder containing ij.properties. Previous versions expected it to be in "user.dir".
• Added the Image/Color Tables/Invert LUT command for inverting the lookup table. Inverted LUTs display zero pixels as white instead of black. Unlike Edit/Invert, Invert Lut does not alter the pixel data.
• Roi outlines are no longer limited to 5000 points.
• Edit/Draw now works with oval selections.
• The display is now updated correctly after using Edit/Draw with a line width greater than one.
• Added the createImagePlus method to ImagePlus for creating new ImagePlus objects that have the attributes, such as spatial scale, of the parent.
• Added the hide method to ImagePlus. Use hide() to close an ImagePlus' window and show() to open it.
• Added constructors to ShortProcessor and FloatProcessor for creating blank images. The ShortProcessor constructor has a boolean argument used to specify signed or unsigned.
• Added the invertLut method to ImageProcessor. Inverted Luts display zero pixels as white.
• Image/Stacks/Convert Stack to RGB is working again (It broke in v1.03).
• The File/Acquire/LUT command is working again.
• Fixed a bug that caused brightness and contrast modifications to be lost after using Image/Crop, Image/Duplicate or Image/Transformations/Resize on a 16-bit or 32-bit image or stack.
• Fixed a bug that caused spatial calibration to be lost after using Image/Crop or Image/Transformations/Resize.
• Fixed a bug that caused the lineTo() method of ImageProcessor to not draw the end pixel.

V 1.04, 13-May-99

• Added a "Difference" operator (dst = (dst-src)/2+128) to the Process/Image Calculator and Edit/Paste Control.
• Fixed a bug, introduces in v1.02, that caused profile plots of straight line selections to be incorrect.
• Fixed a bug that caused the "Subtract" operator in Process/Image Calculator and Edit/Paste Control to produce incorrect results.

V 1.03, 6-May-99

• Added a flush() method to the ImagePlus class that sets the pixel arrays to null, making it more likely that the garbage collector will reclaim memory when images are closed.
• The "Apply" button in the contrast/brightness control now processes every slice in a stack, with the exception of RGB and HSB stacks.
• The standalone Windows version now comes as a self-extracting zip archive and includes JRE 1.1.8.
• Worked around a null cursor bug with JDK 1.1.8.
• Fixed a bug, introduced in V1.02, that caused conversions to RGB and HSB stacks to fail.
• Fixed a Windows NT specific bug that caused values typed in the File/Acquire/Raw dialog to be read incorrectly.

V 1.02, 4-May-99

• Added the Acquire/Twain command for acquiring images from TWAIN sources (scanners, digital cameras, frame grabbers). Requires that the "twain.jar" and "JavaTwain32.dll" files from the Java Twain Package at http://internet.sk/gnome/ be moved to the ImageJ folder.
• Added the Process/Morphology submenu with Erode, Dilate, Open, Close, Outline and Skeletonize commands.
• Added the Process/Shadows submenu with commands for producing shadow effects. Includes a nifty demo that shows off the speed of the 3x3 convolution routine contributed by Glynne Casteel.
• Added the Process/Noise submenu, moved to it the "Add Noise" and Despeckle commands, and added "More Noise" and "Salt and Pepper" commands.
• Added the Save As/Text command for saving images as tab-delimited text files.
• 8-bit images can now be pasted into RGB images.
• Profile plots of irregular line selections are now supported.
• The Smooth and Sharpen commands now work with 32-bit floating-point images.
• Fixed several bugs relating to 16-bit unsigned images.
• Fixed a Windows NT specific bug that caused values typed in the Image/Scale dialog to be read incorrectly.

V 1.01, 25-March-99

• Plug-ins placed in a folder named "plugins" are now automatically installed in the PlugIns menu. The folder distributed with ImageJ contains source code for two example plug-ins.
• The applet version of ImageJ now downloads as a JAR (Java ARchive) file. It is now slower to start up but the annoying class file downloading delays are gone.
• Added the Image>Crop command, which works with all data types and with stacks. Note that there is no Undo available for operations on stacks.
• Dialog boxes are now centered on the screen.
• The Rotate Right, Rotate Left and Resize commands now work with 16-bit and 32-bit grayscale images, and with stacks.
• The Cut, Copy, Paste and Enhance Contrast commands now work with 16-bit and 32-bit grayscale images.
• Added the "3-3-2 RGB" LUT to the Image>Color Tables sub-menu. This palette uses 3-bits for red, 3-bits for green, and 2-bits for blue.
• Moved the benchmark commands from the PlugIns menu to the Image>Benchmarks sub-menu.
• Added methods to the FileSaver class for saving as tiff, gif, jpeg or raw using a file path.
• Removed the RGBA and HSB public constants from the ImagePlus class.
• Added isRGBA() and isHSB() methods to the ImageStack class.
• Fixed a bug with the "Pixel Aspect Ratio" option in the Analyze>Set Scale dialog.
• Fixed a masking bug that caused operations on non-rectangular ROIs to fail on some UNIX systems.

V 0.99, 2-March-99

• Added the Image>Stack>Save Slices as Files command for saving a stack as separate tiff, gif, jpeg or raw files.
• On the Macintosh, the menu bar no longer disappears when image windows are active.
• Added the "Spectrum" LUT to the Image>Color Tables sub-menu.
• Added the Image>Stacks:Convert Stack to RGB command for converting a 3 or 4-slice stack to a color image.
• The File>Acquire>All as Stack command now sorts the file list to guarantee that images are loaded into the stack in alphabetical order.
• The Image>Scale and Image>Transformations>Resize commands now work with 16-bit images.
• Fixed a problem with the 16-bit version Process>Sharpen.

V 0.98, 2-February-99

• The Image>Colors window no longer requires a network connection and colors can be "picked up" without switching to the eyedropper tool.
• The spatial scale in TIFF and DICOM headers is now used.
• Added the "Analyze>Set Scale" command for setting the spatial scale.
• Added the "Image>Stacks>Set Speed" command for changing the stack animation speed. The default is 10 fps.
• When opening a TIFF file, and ImageJ is in debug mode, the TIFF tags are dumped to the ImageJ window.
• Added the "File>Page Setup" dialog for specifying the printer scaling (5-500%) and whether or not the image is centered on the page, has a border and/or a title.
• Images are now printed centered, with a border, and are scaled to fit the page.
• Added the Image>Color Tables sub-menu for applying color lookup tables to grayscale images to produce false-color images. If no image is open, a 256x32 ramp image is created to display the color table.
• Added an "Open All" option to the Import dialog.
• Added the "File>Acquire>Open All As Stack" command for opening all the image files in a folder as a stack. The images must all be the same size and type (8-bit, 16-bit or RGB). The images can be in tiff, gif, jpeg or bmp format.
• When closing a stack, the references to the raster data are set to null so the memory used by the stack is more likely to be reclaimed.
• The Adjust Contrast plug-in no longer prevents closed images from being garbage collected.
• The IP Demo plug-in now runs commands in a separate thread and no longer prevents closed images from being garbage collected.
• Changed the name of the getTitle method in ImageStack to getSliceLabel.
• Added the setColorModel methed to the ImageProcessor class.
• Changed the name of the Info class to IJ.
• Added the static IJ.runPlugIn method that runs a plug-in and returns a reference to it.
• Changed the name of the getImageJ method in IJ to getInstance.
• Changed the name of the getLUT method in ImagePlus to createLUT.
• Edit>Draw now works with rectangular ROIs created by a paste operation.
• Fixed a thread synchronization bug that could sometimes cause ImageJ to hang.
• Fixed a bug that caused the File>Quit command to sometimes fail when running ImageJ under JDK 1.2.

V 0.97, 11-December-98

• Updated the "Waves" benchmark results for the released version of JDK 1.2. Vote for bug 4185726 if you want to see image display speeded up in JDK 1.2.
• Added a "16-bit Unsigned" option to the File/Acquire/Raw dialog. Selecting this option causes ImageJ to subtract 32768 from each pixel value before creating a ShortProcessor to contain the image. Methods in ShortProcessor that return pixel values (getPixelValue, getMin, getMax, etc.) then add back the 32768.
• The new MemoryMonitor plug-in continuously plots ImageJ's memory utilization. Hold down the alt/option key to use a 640x480 window and display the frame rate, simulating video acquisition. Click on the status bar in the ImageJ window to force the JVM to do garbage collection.
• The class files for the stand alone Windows version are now packaged as a JAR file.
• The stand alone Windows version no longer uses a minimized console window.
• Upgraded the Java runtime bundled with the stand alone Windows version to JRE 1.1.7B, which seems to have fixed a problem with exporting text to the system clipboard.
• The "fps" display in the "Waves" plug-in now works with zoomed images.
• The List System Properties plug-in now displays the name of the JIT compiler (java.compiler).
• The "Test Display Speed" plug-in can now be aborted by pressing the esc key.
• Plug-in can now have "about boxes". See the source for the Invert, MemoryMonitor or Waves plug-ins for examples.
• The Plot Profile command, for rectangular selections, now averages horizontally if the alt/option key is down.
• Added the Edit/Options/Profile Plot Options command for fixing the y-axis scale in profile plots.
• The "Memory: xxxxK" message shown when clicking in the status bar no longer displays the free heap space.
• File/Acquire/Raw handles out of memory situations better.
• Fixed a bug that caused some tiff files to be displayed with inverted pixels.
• Fixed a bug that caused a null pointer exception when using Plot Profile with no current selection.
• Fixed a bug that could cause a null pointer exception when using the Rotate 90 Degrees Right/Left commands.

V 0.96, 23-November-98

• Made the ImageJ window slightly wider so lines displayed by the Measurement command are less likely to be split.
• Added a constructor to the ImagePlus class for creating an ImagePlus given an ImageProcessor.
• Changed the order of the arguments in the ShortProcessor and FloatProcessor constructors to be consistent with the ByteProcessor and ColorProcessor constructors.
• Fixed a thread synchronization bug that could sometimes cause ImageJ to hang when closing a window.
• Fixed a bug that caused the drawing color of 8-bit images to be set to 254 instead of 255.
• Fixed a bug that caused a null pointer exception when clicking on a 16-bit or 32-bit image with the dropper tool.

V 0.95, 19-November-98

• The Plug-Ins/"Show Display Speeds" command was updated to include results for JDK 1.2. The results show that the crucial drawImage method is up to 22 times slower compared to JDK 1.1.7. To encourage Sun to fix this problem, vote for bug 4185726 ("JDK 1.2rc1 drawImage very slow (50% slower) compared to JDK 1.1.7") on the Bug Parade. ImageJ is not going to run well under JDK 1.2 until this problem is fixed.
• Added the "Waves" plug-in that continuously applies a sine wave to the x-coordinates of an image. Click on the image or press the escape key to stop. This plug-in is useful as a benchmark (it displays the frame rate), as a way to demonstrate ImageJ's multi-tasking ability, and as an example of a plug-in that processes both 8-bit and RGB images.
• Added a "Transformations" sub-menu to the Image menu and moved the "Flip Vertical" and "Flip Horizontal" commands into it.
• Added the "Rescale" command to the Transformations sub-menu for scaling an image to a specified width and height.
• Added commands to rotate an image 90 degrees left or right to the Transformations sub-menu.
• The "Show Benchmark Times" and "Show Display Speeds" commands no longer require that an image be open.
• Stack animation is now much faster.
• The slice selection scroll bar in stack windows now works more reliably.
• The Invert, Smooth, Find Edges, Add Noise, Despeckle and Threshold commands now operate on all the slices of a stack.
• The Reduce Noise command, a median filter, was renamed Despeckle.
• Added a public "running" flag to the ImageWindow class. Plug-ins can use this flag to terminate themselves when the user clicks on the image or presses the escape key. See /ij/plugin/filter/Waves.java for an example.
• Improved the interface used by plug-in filters. Filters must now implement the PlugInFilter interface and be in the the ij.plugin.filter package. They must also provide a setup method that ImageJ will call to determine the filters capabilities. See ij/plugin/filter/PlugInFilter.java for more information and ij/plugin/filter/Invert.java for an example.
• Added the GenericDialog class that plug-in can use to acquire multipler numeric parameters. See /ij/plugin/filter/Resizer.java for an example of how to use this new class.
• The lock method in ImagePlus beeps and displays a status bar message if the image is already locked.
• The reserve and unreserve methods in the ImagePlus class were renamed lock and unlock.

V 0.94, 21-October-98

• The File/Acquire/Raw command no longer generates extra blank slices at the end of the stack when more than the actual number of images is specified.
• Added a "Gap Between Images" field to the File/Acquire/Raw dialog box. This allows import of multi-image files with gaps between the images (e.g. uncompressed 8-bit AVI movies with a 4104 byte header and a gap of 8). Set the gap to (n-1)*width*height*2*real-gap to read every nth frame in a movie.
• Changes to RGB images made using the Image/Adjust Contrast command are now be limited to the interior of non-rectangular selections.
• The Process/Math command now works correctly with non-rectangular selections.
• The Open... command now opens BMP files with names ending in ".bmp".
• Added a command to the Save As sub-menu for saving images in JPEG format. It uses the JPEG encoder from http://www.obrador.com. Use the Edit/JPEG Quality command to specify the compression level.
• The wand tool now more reliably traces areas defined by a one pixel wide boundary line.

V 0.93, 7-October-98

• Added a constructor to the GifEncoder class for saving 8-bit AWT images.
• Added the Edit/Fonts command for specifying the font, font size and font style. For a shortcut, double-click on the Text tool in the tool bar.
• Double-clicking in the tool bar on any of the three line selection tools now brings up the set line width dialog.
• Added a "Colors..." command to the Image menu. It downloads and displays an image that can be used, in conjunction with the dropper tool, to set the drawing color. Note that holding down the alt (option) key temporarily switches to the dropper tool.
• Moved the Draw Arrow command from the PlugIns menu to the Edit menu.
• Moved the Draw Arrow command from the PlugIns menu to the Edit menu.
• Moved the Adjust Contrast command from the PlugIns menu to the Image menu.
• The Fill and Clear commands now require a selection.
• The Save As, Acquire/BMP and Acquire/Raw commands now "remember" the previously used directory.
• Worked around a JDK 1.1.7 related bug that caused a null pointer exception when using ImageJ's GetNumberDialog or GetStringDialog classes.
• Worked around a JDK 1.1.7 related bug that caused ImageJ to lock up when opening an 8-bit image.

V 0.92, 28-September-98

• Fixed several bugs in "Adjust Contrast".
• Added an "Hist." button to "Ajust Contrast" that generates a histogram and combines it with the LUT plot.
• Added an "Apply" button to "Ajust Contrast" that, for 8-bit images, makes brightness and contrast changes permanent.
• When running as an applet, the first time a command is executed, a progress bar is displayed as class files downloaded.
• The 16-bit sample image "M51 Galaxy" now displays correctly.
• Fixed a bug the that caused 16 and 32-bit images loaded over the network to become corrupted.
• It's now possible to move text selections using the arrow keys.
• Fixed a bug that could cause null pointer exceptions when generating line profiles.

V 0.91, 21-September-98

• New downloadable versions for Mac OS, Windows and UNIX are available.
• Increased the maximum heap size of the stand alone Windows version from 16MB to 64MB.
• Updated the API documention.

V 0.90, 17-September-98

• Worked around a bug in Sun's JDK/JRE 1.1.6 that caused the main ImageJ window to be too large.
• Saved gif files now reflect changes made in the Adjust Contrast window.
• Look-up table plots generated by Analyze/Show LUT now reflect changes made in the Adjust Contrast window.
• Measurement results displayed in the ImageJ window are now formatted better.
• Stacks are no longer limited to 100 slices.
• Added "Next Slice" and "Previous Slice" commands to the Stacks sub-menu. Use the ">" and "<" keys as shortcuts.
• Added a line of text to the top of each image window that displays current slice/total slices (stacks only), width, height, type and memory size.

V 0.89, 16-September-98

• Added a text (annotation) tool. Use it to create a text rectangle, type some text, then use Edit/Draw to add the text to the Image. To draw the text on a white background, use Edit/Clear prior to Edit/Draw. To change the font size, use Edit/Font Size or double-click on the text tool. There is currently no way to select a different font or style. Text rectangles are currently limited to one line.
• Added a Draw command to the pop-up menu. To use this menu, right-click on an image (option-click on the Mac).
• Fixed a bug that sometimes caused operations on non-rectangular regions in stacks to fail.
• Fixed a bug that could result in multiple checked items in the Type sub-menu after an attempt to do an unsupported conversion.
• Fixed a bug that caused images larger than the screen (e.g. a 1024x1024 image on a 640x480 screen) to be displayed incorrectly after conversion to RGBA or HSB.
• Fixed a bug that could cause null pointer exceptions when generating histograms.
• Fixed a bug that caused the line width to be set to one if "Cancel" was clicked in the Edit/Line Width dialog box.

V 0.88, 8-September-98

• Worked around a bug in SUN's JVM for Windows that could cause ImageJ to lock up when closing a window with changes.
• Updated "Plug-Ins/Show Benchmark Times" to include results for Apple's MRJ 2.1ea2.
• Fixed a bug that could cause images to become permanently locked when memory was low.
• Fixed a minor bug in the Image/Scale command. To see the bug in action, use Acquire/URL to load the image http://rsbweb.nih.gov/~wayne/ij/images/dots.gif, and then use Image/Scale to scale it by 2.
• When switching slices (channels) in RGBA or HSB stacks, the slice name ("red", "green", "blue", "hue", "saturation" or "brightness") is now displayed in the status bar.
• Removed the Image/Channel sub-menu.

V 0.87, 20-August-98

• Fixed several problems that caused Edit/Draw and Edit/Fill to use incorrect colors with in 8-bit images.
• Hold down the alt (option) key to temporarily switch to the hand (panning) tool.
• Alt-click (option-click) on an image with any tool except the magnifying glass to "pick up" a new drawing color. This is a shortcut for switching to the dropper tool, clicking on the image to select a drawing color, and then switching back to the original tool.
• The Plug-Ins menu has a new command that tests to see how fast the JVM can draw images to the screen.

V 0.86, 2-July-98

• The Benchmark plug-in has a new option that displays more times.
• Images now display much faster when running under MRJ (MacOS Runtime for Java).
• Lines rendered using the Draw command are now aligned better with the yellow ROI selection.
• Worked around a problem with some versions of MRJ and Internet Explorer that caused ImageJ windows to be displayed under the the Mac menu bar.
• Fixed another problem with the Draw command.

V 0.85, 22-June-98

• Released new standalone versions for Mac OS8 and Windows. Reverted back to using JRE 1.1.5 with the Windows version because JRE 1.1.6 has a bug that causes ImageJ to hang when quiting with unsaved windows.
• The Draw command works again.
• Fixed a null pointer exception error (introduced in 0.83) that followed the "There are no Images open." dialog.

V 0.84, 19-June-98

• New stand alone versions for Mac OS8 and Windows are available. The Mac version include source code and a Metrowerks CodeWarrior project file. The Windows version includes the source and Java Runtime Environment (JRE) 1.1.6. There is also a much smaller ZIP file containing the class files and source but not the JRE.
• Updated the API documentation.

V 0.83, 18-June-98

• Stacks can now be saved as tiff files.
• 8-bit multi-image tiff files open as stacks if the images are all the same size.
• The File/New command will now create 8-bit stacks.
• Added an Image/Stacks submenu with commands to start/stop stack animation.
• The Image/GetInfo command now displays "(inverted LUT)" for images with inverted look-up tables and, for stacks, displays the current slice number.
• Fixed a bug that caused Edit/Clear to erase to black instead of white for images with inverted LUTs.
• Added buttons to histogram windows that allow histogram values to be saved to a text file or copied to the system clipboard.
• Fixed a bug that sometimes caused an array bounds exceptions when generating histograms of 32-bit real images.

V 0.82, 5-June-98

• "Adjust Contrast" now changes the brightness and contrast of 8-bit images by updating the image's look-up table rather than its pixel values. This is particularly nice when working with stacks since brightness and contrast changes apply to all the slices in the stack.
• Added two sample stacks to the Open menu. "MRI Stack" is a 3D MRI head scan consisting of 27 186x226 axial slices and "Scala Media Stack" is a 36 frame 3D movie of the scala media volume within the cochlea of the moustached bat.
• Three of the larger sample images (Boats, Bridge and Gel) now download more reliably as a result of being converted from gifs to tiffs.
• The FileOpener class now supports URLs and can open 8-bit stacks.
• Acquire/Raw can now import multi-image 8-bit files.
• Windows with multiple images (stacks) now have a scrollbar for selecting the image to be displayed. To see how this works, convert a color image to ARGB (alpha, red, green, blue) or to HSB (hue, saturation, brightness).

V 0.81, 14-May-98

• Improved the DICOM plug-in so it now opens some aberrant GE MRI scans.
• Copying text from the ImageJ window to the Clipboard now works more reliably.
• Measurement results displayed in the ImageJ window are now tab-delimited so they can be easily pasted into a spreadsheet.
• Moved the buttons in the profile plot window from the right side of the window to the bottom.
• Fixed a problem with the "Copy" (to Clipboard) option in the profile plot window.
• Moved the "Save XY Coordinates" and "Fractal Box Counter" plug-ins from the Plug-ins menu to the new Process/Fractals submenu.
• The "Fractal Box Counter" now allows you to specify the box sizes and the results are now tab-delimited.

V 0.80, 11-May-98

• The run() method plug-ins are required to implement is now passed a String instead of an ImagePlus. Plug-ins that need an ImagePlus object can call WindowManager.getCurrentImage(). One plug-in that used this new feature is URLOpener, which ImageJ uses to open the sample images in the Open submenu.
• Changed the name of the URL plug-in to URLOpener.
• The Acquire/Raw and Math commands now "remember" the popup menu selection.
• Added a 16-bit image of the M51 galaxy to the Open submenu. As an exercise, try using Adjust Contrast to bring out detail in the galaxy. One useful trick is to select a region of interest and click on the "Auto" button.
• Zoomed images now expand to fill the window as the window is enlarged.

V 0.79, 1-May-98

• Resize rectangular selections by clicking and dragging the little box in the lower right corner.
• Resize rectangular and oval selections by holding down the the option (alt) key and using the arrow keys.
• Added a "Save Changes" dialog that is displayed when closing windows or quitting.
• The Save command is now an alias for "Save as Tiff..." instead of "Save as Gif...".

V 0.78, 21-Apr-98

• The "Adjust Contrast" plug-in is now multi-threaded to provide a more responsive user interface.
• Added the wand tool. This tool automatically selects image areas with identical pixel values.
• Fixed a problem with the interactive display of pixel values of zoomed RGB images.
• Double-clicking in the toolbar now works more reliably. Currently you can double-click on the line tool to set the line width and on the zoom tool to unzoom.

V 0.77, 3-Apr-98

• Added a plug-in (Acquire/URL) for opening GIF and JPEG images using a URL.
• Added a class (GetStringDialog) that prompts the user for a string.
• Converted the MessageDialog, MessageWithCancelDialog and GetNumberDialog classes to the Java 1.1 event model.
• Added Select All and Select None commands.
• Moved the Restore Selection command to the Edit menu and renamed it Restore Selection.
• Profile plots are now larger for larger selections.
• Added buttons to profile plots windows that allow the plot data to be saved to a text file or copied to the system clipboard.
• Updated the API documentation.

V 0.76, 31-Mar-98

• Added a plug-in for displaying 8, 16 and 32-bit FITS (Flexible Image Transport System) images.
• Fixed a problem with ROI histograms of 16 and 32-bit grayscale images.
• Fixed several image zooming and scrolling problems.
• Added a plug-in for drawing arrows.
• White (255,255,255) backgrounds are no longer changed to (248,248,248) when converting from RGB to 8-bit color.
• File extensions are automatically changed when saving images in a different format.
• Added a plug-in for adjusting the brightness and contrast and of all supported image types.

V 0.75, 17-Mar-98

• Fixed an array bounds exception bug when using Enhance Contrast or Threshold with non-rectangular selections.
• Fixed a bug that allowed freehand ROIs to extend beyond the left or top edge of the image.
• Added a plug-in for displaying DICOM images. DICOM (Digital Imaging and Communications in Medicine) is an image file format widely used in the medical imaging community.
• Replaced the incomplete images at ftp://codon.nih.gov/pub/image-j/images.
• The DICOM plug-in dumps the DICOM tags (group, element, length, explicit VR) if debugging is enabled.
• Added a plug-in for displaying uncompressed BMP images.
• Added Acquire submenu for acquisition plug-ins such as the new DICOM and BMP plug-ins.
• Changed Import command to a plug-in and moved it to the Acquire submenu.

V 0.74, 9-Mar-98

• Three tools were added for creating straight, segmented and freehand line selections. Use the Draw command to draw the line. Use Measure to measure its length. Use Plot Profile to plot the pixel values along a straight line selection. To measure an angle, create a two-segment line selection and use the Measure command. Use the arrow keys to move line selections one pixel at a time.
• A server bug was fixed that sometimes caused larger demo images such as "Boats" and "Bridge" to be downloaded incorrectly.
• The status bar was moved to the top of the "ImageJ" window.
• The new eyedropper tool "picks up" colors from image windows for use by the Draw and Fill commands.
• A working JIT compiler is included with the standalone Win32 version.

V 0.73, 2-Mar-98

• The Open command dumps TIFF tags to the Java console if debugging is enabled.
• The "Lena" benchmark example times were updated.
• The new "Draw" command outlines the ROI using the current color and line width. Note that this doesn't work yet with oval ROIs and there is currently no way to set the color.
• Use the new "Line Width..." command, or double-click on the line tool, to set the line width.

V 0.72, 24-Feb-98

• Keyboard shortcuts (without command or control) now work when the ImageJ window is active.
• The "click on status bar to display memory used" feature works more reliably.
• The ImageJ and IP_Demo classes were converted to the Java 1.1 event model.
• Potential thread deadlock problem with the "IP Demo" plug-in fixed.
• The "IP Demo" plug-in works with multiple images.
• You can now quit the "IP Demo" plug-in by clicking on its close box.

V 0.71, 19-Feb-98

• The "Save as Gif..." command now uses the GifEncoder class by Jef Poskanzer(http://www.acme.com). This GifEncoder is more reliable than the one previously used and it adds support for interlaced and transparent GIFs, although these features are currently not supported by ImageJ.
• Added a simple example plug-in (Prototype PlugIn) that inverts grayscale images.
• The ImageJ source code was divided into five packages: imagej, imagej.gui, imagej.process, imagej.io, and imagej.plugin.
• The API documentation was updated.

V 0.70, 10-Feb-98

• The New command now has a dialog box for specifing the name, size and content of newly created images.
• The ImageWindow, ImageCanvas and ImportDialog classes were converted to the Java 1.1 event model.

V 0.63, 4-Feb-98

• Support was added for cut, copy and paste of rectangular image selections. Support is limited to ImageJ's internal clipboard. Images cannot be copied to or from other programs.
• Image windows now have a popup menu accessed using control-click on the Mac and right-click on PCs. This menu can be customized by editing the ij.properties file.
• Keyboard shortcuts work without holding down the control key when an image window is active.
• Use the keys "1" through "4" to switch image channels.
• When switching channels, the channel name ("Red", "Hue", etc.) is displayed in the status bar.

V 0.62, 30-Jan-98

• "Clear" now erases to white and "Fill" fills with black on images with inverted look-up tables.
• ROI outlines are now more precisely drawn on magnified images whose width or height is not evenly dividable by the magnification factor.
• A bug, introduced in v0.56, was fixed that prevented memory from being reclaimed when closing the last remaining image window.
• A bug was fixed that prevented ROI outlines from being moved all the way to the right or bottom edge of an image.
• A bug was fixed that caused operations to fail on images that had been duplicated using the Duplicate command.

V 0.61, 28-Jan-98

• A plug-in was added that uses the "box counting" method to make measurements that allows one to calculate the fractal dimension of an object.
• Text displayed in the ImageJ window can be selected and copied to the system clipboard. Note that this may not work when ImageJ is running as an applet due to security restrictions.
• Stack traces due to run-time exceptions are now displayed in the ImageJ window.
• Run-time exceptions such as array bounds errors no longer leave the active image in a locked state.

V 0.60, 21-Jan-98

• The file open dialog box is now more likely to "remembers" the directory.
• The window title is used as the default file name in the "Save as" dialog box.
• Scrolling tool (looks like a hand) added.
• Use function keys to select tools.
• Values displayed by the Measure command are rounded and better formatted.

V 0.59, 13-Jan-98

• ImageJ now requires a Java 1.1 virtual machine such as Sun's JDK 1.1.x, Netscape Navigator 4 with the JDK 1.1 patch (PC only), Internet Explorer 4 (Mac and PC), or MacOS Runtime for Java 2.0.
• Horizontal scrollbar in ImageJ window is never used.
• Keyboard shortcuts are shown in menus.
• "Print" command added.
• Zoom magnifications less than one are now supported.
• "About..." command moved to standard help menu on Macs.
• Integer pixel values now displayed in status bar without decimal points.
• A number formating problem in the Rotate dialog box was fixed.
• Status bar messages are now displayed using 12-point "SansSerif" font.
• New image windows are positioned slightly offset from the previous window.
• Images larger than the screen are scaled to fit.
• Image windows increase/decrease in size as needed when zooming.

V 0.58, 22-Dec-97

• Six more sample images were added.
• The location and names of the sample images are now read from a file named ij.properties.
• A plug-in was added that saves to a text file the x,y coordinates of black pixels in binary images.
• A plug-in was added that displays the Java system properties.
• The progress bar has a new 3D look.
• Attempts to filter 8-bit indexed color images cause an error message to be displayed.

V 0.57, 4-Dec-97

• "Window" menu added.
• Keyboard shortcuts work more reliably.
• The RGB to 8-bit color conversion dialog is now dismissed more quickly..
• Keyboard shorcuts added for Enhance Contrast (Shift^E) and Threshold (Shift^T)
• The revert command now works with images opened using Open... and with imported raw images.

V 0.56, 20-Nov-97

• The new Measure command (control-1 or just 1) calculates and displays the pixel count, mean, standard deviation, and min and max pixel value. Note that results are truncated, rather than rounded. This will be fixed in a future version.
• The new Restore Outline command restores the previous ROI outline or, when switching windows, transfers an outline from one window to another.
• The arrow keys now move ROI outlines.
• The Measure and Histogram commands now work with non-rectangular selections on 16 and 32-bit grayscale images.

V 0.55, 14-Nov-97

• Filters no longer automatically convert 8-bit indexed color images to 32-bit RGB images.
• All menu commands now run in a separate thread.
• The Find Edges, Reduce Noise, Enhance Contrast and Threshold commands now work with RGB images.
• The Enhance Contrast and Threshold commands now work correctly with non-rectangular selections.
• ImageJ now compiles without error using the JDK 1.1.4 Java compiler. The command "javac ImageJ.java" compiles all the classes except for plug-ins.
• Enhance Contrast now continues to increase contrast when used repeatedly.

V 0.54, 5-Nov-97

• Get Info now displays the amount of memory used by ImageJ in kilobytes. You can also view this value by clicking on the status bar at the bottom of the ImageJ window.
• Window and memory management are improved.
• More information is displayed in the debug mode.
• The Memory_Test plug-in displays a warning dialog box.
• The applet version of ImageJ was moved to a faster server so images and class files should now load faster.

V 0.53, 29-Oct-97

• A magnifying glass tool was added to the toolbar. Click on an image to zoom in. Option-click or right-click to zoom out. Double-click on the magnifying glass icon to reset the image. Eight magnification levels are available: 1:1, 2:1, 4:1, 8:1, 16:1, 32:1 and 64:1.
• The outlining tools work on zoomed images. As an exercise, try outlining a single pixel with each of the four outlining tools.

V 0.52, 21-Oct-97

• The memory requirements of the 3x3 neighborhood filters (Smooth, Sharpen, etc.) were reduced. They now require free memory equal to 2 times the image size instead of 3 times.
• An error message is now displayed when OutOfMemoryError exceptions occur.
• Use the "Memory_Test" plug-in to see how will your JVM handles low memory situations. It will open as many 1024x1024x8-bit images as possible and then attempt to calculate how much memory was used for each image. This is a demanding test that may require ImageJ to be restarted, may crash your browser, or may even crash your machine.

V 0.51, 17-Oct-97

• A toolbar with four outlining tools was added.
• The status bar and progress bar were moved to the bottom of the ImageJ window.
• The cursor changes to a crosshair if it's inside an image window and not inside an ROI.
• Holding the shift key down constrains selections to be square.
• The Smooth and Sharpen filters no longer ignore ROIs on color images.

V 0.50, 23-Sep-97

• ImageJ's functionality can now be expanded via plug-in class files that are automatically installed in the Plug-Ins (formerly Special) menu. This version is supplied with five example plug-ins: Benchmark, IPDemo_PlugIn, PlugIn_Macro, Thread_Lister and Timer. The Java source code for these plug-ins is in the ImageJ source folder. Future versions will allow plug-ins to be installed in any menu.

V 0.49

• Filters and the built-in benchmark now run as separate threads. You can now run two or more benchmarks at the same time!
• The entire image is no longer redrawn when ROIs are created or moved.
• "Plot Profile" command added.

V 0.48

• Histograms of 16 and 32-bit images now correctly labeled

V 0.47

• Save grayscale (8, 16 and 32-bit) and color (8 and 24-bit) images as TIFF

V 0.46 and Earlier

• Save byte, short, float and RGB images as raw data
• Open uncompressed TIFF files
• Now works with JDK 1.1.x and Hot Java 1.0
• Progress bar when downloading images and class files
• Support for 32-bit real images
• Progress bar for filters
• Import raw 8 and 16 bit images
• Support for 16-bit (signed) images
• Cursor location and value of pixel at that location are dynamically displayed
• Pixel values and counts dynamically displayed in the Histogram window
• Histogram command works correctly with indexed color images
• Convert RGB color to 8-bit indexed color
• Keyboard shortcuts using the Control key. ^N=New, ^O=Open, ^K=Open Color Lena, ^L=Open Lena, ^W=Close, ^S=Save As, ^R=Revert, ^D=Duplicate, ^I=Get Info, ^Z=Undo, ^F=Fill, E^=Scale, ^H=Histogram. You may need to click on a window to get keyboard focus.
• Close, Save As (GIF) and Revert commands
• New prototype macro in Special menu
• Convert color images to RGB (red, green and blue) or HSB (hue, saturation and brightness)
• Convert color to grayscale