If you want to understand how a photo was worked on, one great way it to generate a Dodge & Burn mask (or a D&B signature). You can then use this signature to learn quite a bit about the dodge and burn that was done on a photo. You get a better “feel” for the brush strokes. To have a better distinction between the dodge and the burn, you can colorize each mask. This is what it looks like:
Since this is such a powerful tool for showing how you worked your photo, we are going to share the process of creating one. (and you can do similar for healing brush for example) .