I have 4 images, all with the same original background, every single one of them has writing somewhere in the picture, if compared 1 to 1, the only difference would be the writing, I wan't to extract the pieces of background from each of the images in order to build the whole background back.
if all the difference are substracted, it can be achieved the background without text (and no contant-aware fill):
What I managed to do, which is really bad and time consuming:
- Select -> Color range
- Select all color from text
- Select -> Modify -> Expand by 2 pixel
- Merge all of them together
This will leave JPEG artifacts and also won't be a real substraction, there are probably a term for what I'm trying to do, but since I don't know how it is, I arranged this title.