11-24-2020, 05:34 PM
What rich mentioned to change the photo to greyscale is the best to work with. What I did is make roughly 2 selections on the cracks from the photo and made a new layer from each one. Then I corrected with : colours / Exposure / , using the exposure and the Black level. The right upper corner from the mid selection was a little to dark and I made a mask to blend it out. It is just a rough example to show how it can be done. The rest is mostly cloning work.