Imagine a simple photo. Say, a black and white portrait of someone. I want to create a special effect with this photo. The middle of the photo will remain unchanged, but as we move further from the centre, there are pieces missing and the background is white. Near the very edges of the photo, there are mainly white areas.
One idea I had was to create an image of the "cutting pattern" and somehow cut the photo with this other image. My question is, can that be done in GIMP and if so, what is the step-by-step procedure for doing that?
As an example of what I am trying to do, I have attached two images. The first image is a photo of John Lennon. The second is a white image with many black squares. It has the same dimensions as the first.
What I want to do is use the black squares in the first image, and cut those areas out in the second, leaving those areas in the first image transparent.