I'm using Substance 3D Designer and have two Bitmaps. They are almost identical, except some spots have a different color-tint (e.g. greenish vs yellowish). I need these differences as a black/white mask (goal is to use this mask in a game-engine to give a color at runtime).
I tried with blending (subtract/divide) and roughly that works, but has pixel-artifacts - which makes sense because it's not looking for an exact match. So what i'd like to do is compare each pixel in image 1 to the corresponding pixel in image 2 and if they are identical I'd like the output mask to contain black for that pixel, otherwise white.