This is the command gmerlin_imgdiff that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
gmerlin_imgdiff - compare two images
gmerlin_imgdiff <image1> <image2> <output>
gmerlin_imgdiff will calculate the absolute difference between <image1> and <image2> and
store the resulting image into <output>.
The input images should be of the same dimension and format.
gmerlin_imgdiff is part of the Gmerlin suite of media applications.
Use gmerlin_imgdiff online using onworks.net services