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ImageJ can display, edit, analyze, process, save, and print 8-bit, 16-bit,
and 32-bit images. It can read many image formats including TIFF, PNG, GIF,
JPEG, BMP, DICOM, and FITS, as well as raw formats. ImageJ supports image
stacks, a series of images that share a single window; it is multi-threaded, so
time-consuming operations such as image file reading can be performed in
parallel with other operations. ImageJ can calculate area and pixel value
statistics of user-defined selections and intensity thresholded objects. It can
measure distances and angles. It can create density histograms and line profile
plots. It supports standard image processing functions such as logical and
arithmetical operations between images, contrast manipulation, convolution,
Fourier analysis, sharpening, smoothing, edge detection, and median filtering.
It does geometric transformations such as scaling, rotation, and flips. The
program supports any number of images simultaneously, limited only by available
memory.
ImageJ runs on Linux, Mac OS X, and Windows. ImageJ and its Java source code
are freely available from the National Institute of Mental Health and in the
public domain. No license is required.
Download ImageJ from
NIH
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