Open and save all supported data types as TIFF (uncompressed) or as raw data.

8-bit grayscale or indexed color, 16-bit unsigned integer, 32-bit floating-point and RGB color.

It can filter a 2048x2048 image in 0.1 seconds (*).

ImageJ is the world's fastest pure Java image processing program.Use ImageJ as a image processing toolkit (class library) to develop applets, servlets or applications.Extend ImageJ by developing plugins using ImageJ's built in text editor and Java compiler.More than 300 macros are available on the ImageJ Web site. Automatically generate macro code using the command recorder. Automate tasks and create custom tools using macros.More than 1700 users and developers subscribe to the ImageJ mailing list. ImageJ has a large and knowledgeable worldwide user community.ImageJ and its Java source code are freely available and in the public domain.ImageJ runs on Linux, Mac OS 9, Mac OS X, Windows, and the Sharp Zaurus PDA.

User-written plugins make it possible to solve almost any image processing or analysis problem. Custom acquisition, analysis and processing plugins can be developed using ImageJ's built in editor and Java compiler. ImageJ was designed with an open architecture that provides extensibility via Java plugins. Density or gray scale calibration is also available. Spatial calibration is available to provide real world dimensional measurements in units such as millimeters. The program supports any number of windows (images) simultaneously, limited only by available memory. All analysis and processing functions are available at any magnification factor. Image can be zoomed up to 32:1 and down to 1:32. It does geometric transformations such as scaling, rotation and flips. It supports standard image processing functions such as contrast manipulation, sharpening, smoothing, edge detection and median filtering. It can create density histograms and line profile plots. It can calculate area and pixel value statistics of user-defined selections. It is multithreaded, so time-consuming operations such as image file reading can be performed in parallel with other operations. It supports 'stacks', a series of images that share a single window. It can read many image formats including TIFF, GIF, JPEG, BMP, DICOM, FITS and 'raw'. It can display, edit, analyze, process, save and print 8-bit, 16-bit and 32-bit images. It runs, either as an online applet or as a downloadable application, on any computer with a Java 1.1 or later virtual machine. ImageJ is an intersting Java based image processing application inspired by NIH Image for the Macintosh.

Imaging software for mac os x