ImageJ is a public domain Java image processing program inspired by NIH Image for the Macintosh. It runs, either as an online applet or as a downloadable application, on any computer with a Java 1.1 or later virtual machine. It can display, edit, analyze, process, save and print 8-bit, 16-bit and 32-bit images. It can read many image formats including TIFF, GIF, JPEG, BMP, DICOM, FITS and "raw". It supports "stacks", a series of images that share a single window. It is multithreaded, so time-consuming operations such as image file reading can be performed in parallel with other operations. It can calculate area and pixel value statistics of user-defined selections. It can measure distances and angles. It can create density histograms and line profile plots. It supports standard image processing functions such as contrast manipulation, sharpening, smoothing, edge detection and median filtering. It does geometric transformations such as scaling, rotation and flips. Image can be zoomed up to 32:1 and down to 1:32. All analysis and processing functions are available at any magnification factor. The program supports any number of windows (images) simultaneously, limited only by available memory. Spatial calibration is available to provide real world dimensional measurements in units such as millimeters. Density or gray scale calibration is also available.
What's new in this version:
- Stacks open and save in less time due to faster IJ.showStatus() method.
- Added the Image>Type>Lab Stack command, which converts an RGB image into a L*a*b* stack using code from Duane Schwartzwald's Color Space Converter plugin.
- Thanks to Ferdinando Pucci, the Image>Stacks>Tools>Concatenate command works with images that differ in width or height.
- The Image>Overlay>To ROI Manager command starts numbering at 1 instead of 0.
- Thanks to Curtis Rueden, Imag... See all new features »