diffimg
Generate an image where each pixel is the difference between corresponding pixels in the 2 source images. tldr-pages
On Linux
Several platforms
Compare two images and output the difference image to the specified file
diffimg path/to/image1 path/to/image2 path/to/output_imageIdentifyLinux
Calculate intersection between two images. Note: The supported extensions are .png, .gif, .jpg, .ps.
Calculate the intersection between images and output an image where each pixel is the difference between corresponding pixels in input images
diffimg path/to/input_image1.ext path/to/input_image2.ext path/to/output_image.extIdentify