ImageJ
ImageJ
1.52

4.4

ImageJ free download for Mac

ImageJ

1.52
28 October 2019

Scientific image processing and analysis.

Overview

ImageJ is a public domain Java image-viewing and -processing program. It runs either as an online applet or as a downloadable application, on any computer with a Java 1.6 or later virtual machine, and can provide image analytics and basic editing functions.

What's new in ImageJ

Version 1.52r:
  • Plot enhancements, thanks to Michael Schmid:
  • The More>> menus have immediate preview.
  • New More>>Use Template menu (also with immediate preview), useful for creating plots with the same style.
  • Clicking into a rectangular area next to an axis shows the corresponding axis dialog.
  • When adding a curve to a "Live" plot, it remains when the plot is updated.
  • Thanks to Marcel Boeglin, the title of the selection list created by Image>Overlay>List Elements includes the image name. And, when you double click on a line, the image associated with the list is activated, the corresponding selection is activated and stacks are set to the selection position.
  • Thanks to Michael Schmid, Process>Filters>Gaussian Blur now uses a Thread Pool, reducing overhead and making it faster for small images.
  • Thanks to Stein Rorvik, you can now separately view and set the X, Y and Z dimension units in the Image>Properties dialog box.
  • Thanks to Ryan Siu, the double click interval used to complete a polygon selection is reduced from 500ms to 250ms and a confirmation dialog is displayed when completing the selection and there are more than 25 points.
  • Thanks to Stein Rorvik, the slider in the Image>Transform>Rotate dialog now shows the angle using two decimal places and the slider arrows increment/decrement by 0.1 degrees. Use the keyboard arrow keys as a shortcut to finely adjust the angle.
  • Thanks to 'felix.b', labels of multi-point tool markers get larger as the markers get larger and there are two new marker sizes ("XXL" and "XXXL").
  • Thanks to Stein Rorvik, the Image>Adjust>Coordinates command can now be used to set the Z unit.
  • GenericDialogs display an error message if show() is called instead of showDialog().
  • Added the getDir("downloads") macro function and the IJ.getDir("downloads") method.
  • Thanks to Stein Rorvik, added the Roi.getPosition(channel,slice,frame), Roi.setPosition(channel,slice,frame), Stack.setXUnit(), Stack.setYUnit(), Stack.setUnits(x,y,z,time,value), Stack.getOrthoViews(x,y,z), Stack.getOrthoViewsIDs(xy,yz,xz), File.getDirectory(path) and File.getNameWithoutExtension(path) macro functions.
  • Thanks to Leroy Olivier, added the Stack.getPointPosition(index) macro function.
  • Added the IJ.openAsByteBuffer() method (example).
  • Thanks to Michael Schmid, fixed a bug that caused the getInfo("window.title") macro function to not work as expected after opening a large text file using open("/path/to/largeFile.txt").
  • Thanks to Stein Rorvik, fixed a bug that caused min/max values of calibrated 16-bit images to be shown without decimals in the "B&C" dialog.
  • Thanks to Deborah Schmidt, fixed a bug that caused Fiji users to not be able to update via HTTPS through a proxy.
  • Worked around a macOS bug that caused the keyboard arrow keys to not function as shortcuts for the increment/decrement arrows in GenericDialog sliders.
  • Thanks to Marcel Boeglin, fixed a bug that could cause the particle analyzer to throw an exception when creating an overlay and no particles were detected.
  • Thanks to Noreen Walker, fixed a bug that caused the image type to unexpectadly to change to COLOR_256 when using the "glasbey" LUT.
  • Thanks to 'mountain_man', fixed a bug that caused images to not be displayed correctly if a LUT was applied before the image was shown.
  • Thanks to 'mountain_man', fixed a bug that caused 8-bit PNG images with LUTs to open as type COLOR_256.
  • Thanks to Jan Brocher, fixed a bug that caused the Edit>Selection>Create Selection command to ignore the "Black background" setting with non-thresholded binary images.
  • Thanks to 'mountain_man', fixed a bug that caused ImageJ to not be be able to open TIFF files saved without a file path.
  • Thanks to Birgit Moeller, fixed a bug that caused the "Label" column to not be sorted when using the "Sort" command in Results tables.
  • Thanks to lguerard and mountain_man, fixed a bug that caused an ROI's hyperstack position to be lost when adding it to the RoiManager.
  • Thanks to Philippe Carl and Michael Schmid, fixed a bug that caused OvalRoi.getMask() to sometimes return a zero-width mask.
  • Thanks to Francois Gannier and Michael Schmid, fixed a 1.52o regression that caused the "Log" window to unexpectedly become the active window.

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10 ImageJ Reviews

Rate this app:

Vitaly
22 July 2015

Most helpful

it is a VERY important application but it doe snot work on OS X 10.11!
Like (1)
Version 1.50a
Vitaly
22 July 2015
it is a VERY important application but it doe snot work on OS X 10.11!
Like (1)
Version 1.50a
2 answer(s)
Vitaly
Vitaly
22 July 2015
actually after playing with it it seems that if this app is located in a folder that has the same name (ImageJ) it does not start, but if the fold name is different, even if a space is added after J, it works. at least on my machine under OS X 10.11 DP4
Like
Cortig
Cortig
26 October 2015
That's due to the way support for legacy Java changed in El Capitan.
There are ways around it, but the easiest (long term) is to download ImageJ with a built-in Java 1.8.0_60 on their website:
http://wsr.imagej.net/download/ImageJ-osx-java8.zip

(and it runs *much* better for me)
Like (2)
darkwing52
08 May 2015
ImageJ deserves your continued appreciation. I'm in a physics department. ImageJ is widely used by our students in both physics and astronomy contexts. It is loaded on well over 50 computers in the department. It gets used in labs, research, and homework. Some of the time it is used for cosmetics (minor image processing, addition of graphical elements such as circles and arrows). Sometimes it is used analytically. As much as we use it, I'm sure we have only touched on its breadth and depth. It is free, actively maintained, and widely appreciated in the scientific community. Stable, extremely functional, and not hard to learn. Do not be put off by its lack of glitz. It is a gem.
Like (1)
Version 1.49s
S/ash
26 June 2012
I really wish I knew about this app when I was in college. Apart from professional image analysis and general editing, it can be very helpful for students in signal processing/image processing to understand how transforms and filters work. Thanks to the devs.
Like (3)
Version 1.46r
nargot
21 August 2011
perfect software for all. from the scientist POV imagej allows us to handle, process and analyse microscope data without the need for prohibitably expensive and sometimes unstable software. for the non-scientist it can be used for all your image needs including scripting for batch processing.
Like (5)
Version 1.45m
1 answer(s)
Holypoly
Holypoly
13 November 2011
PWNED
Like (1)
Spiralsteps
27 November 2010
Perhaps the most hideously designed software ever written.
Like (1)
Version 1.44j
4 answer(s)
Germ65
Germ65
03 January 2011
Just had to reply to this terribly misguided opinion from Spiralsteps. ImageJ is quite simply one of the best pieces of software available.
Like (12)
Vitaly
Vitaly
11 March 2011
nonsense. very nice software, which is used a lot for image analysis in my lab
Like (8)
nargot
nargot
21 August 2011
it is actually vital software for scientists. its free, scriptable and handles all our obscure file formats (with help from the community) it may not be totally user friendly however, it is extremely important for us
Like (7)
Cortig
Cortig
12 December 2013
No doubt: it's not beautiful, doesn't take advantage of all the latest OS X features, etc. It doesn't have the nice polished UI most Cocoa apps offer BUT, it's by far the most powerful and versatile image editor for scientific purposes out there. Scriptable, extendable, more features that you can dream of, and best of all, free! If you are looking for a nice and friendly image editor, I would understand that you'd want to move on to any of the very nice products out there. If you want to perform some serious image analysis, then you might want to give it a second look.
Like (2)
Vitaly
28 February 2010
actually, the downloaded version is Version 1.43r already.
Like
Version 10.2
Thanosd
17 April 2008
Excellent work in the public domain. This is the kind of tool you NEED when you are in image processing and want to analyze a new type of image. This saves time and resources, since it provides all functionality I would usually find in either expensive image processing suites or environments, such as Matlab. Congrats to the developers!
Like (4)
Version 1.4d
New-User
29 July 2006
I found it to be extremely buggy. It wasn't able to access an image on the clipboard at all when no other Mac app had a problem with the clipboard image. Then when opening a JPEG of aprox. 2500x1900 it threw an out of memory error, which is an absolute joke on a 768MB system that had 160MB free at the time. Considering Preview.app opened the same image flawlessly, what gives? I would give it thumbs down. Maybe wait until they do a Cocoa/Java port? Who knows. It just doesn't feel very polished at this point.
Like (1)
Version 1.3.7m
Anonymous
10 November 2004
Thanks for this Java program. It's easy to use and it's fast.
Like (2)
Version 1.33p
Anonymous
01 May 2004
Madena is much better. More controls, better interface, faster and the same price (Free). Still ImageJ might have its uses (primarilly if you are operating on a cross plaform basis). Either provide control and manipulation of 16-bit level data in either TIFF or DICOM files. Something GIMP can NOT do.
Like (1)
Version 1.32i
4 answer(s)
Anonymous
Anonymous
13 May 2004
Huge list of bugfixes from 1.32i that I have used for about a week. In that time I've written a couple of plugins to test out some image processing concepts... REMARKABLY easy despite never having written in Java (or C, for that matter) before. Don't let a simplistic "X is better" deter you if ImageJ looks useful for your purposes. This ain't perfect (I don't see a bugfix for a way that I crashed my version and some Mac-isms don't work right) but it has a very short learning curve to be very useful.
Like (1)
Version 1.32j
Anonymous
Anonymous
01 February 2005
To the guy in La-La land: You realize Madena is some 20 MBs, as opposed to ImageJ's less than 1 MB, right?
Like
Version 1.34g
Anonymous
Anonymous
11 April 2005
I guess some people read the first sentence and make a conclusion. 20MB with demo images and only 3MB without.
Like (2)
Version 1.34k
Wade-Smith
Wade-Smith
29 February 2012
Madena has not been updated for Lion.
Like (1)