Image Calculator
Vamsi K. Jammalamadaka, Hans J. Johnson · The Insight Journal · 2005
ImageCalculator is a command line program for doing simple mathematical operations to a series of images and generating an new output image and basic statistics about the output image. The program uses the Insight Toolkit (www.ITK.org) for file IO and computations, and can operate on any of the image types supported by that library.