Searching for a way to do Bitwise XOR on images

Question

I am looking for a way to get the Bitwise XOR of two images on the command line(or in another way that can be implemented in a program or script).

This should result in

Answer 1

If you want to do yourself, do it pixel by pixel. If you want a library, I recommend OpenCV. This is very nice and open source library with huge operations supported in image processing area. It supports direct XOR using ^ operator. Good Luck.