I have a picture with the subject lit by a nearby streetlight. There is an interesting background behind her. I’d like to boost the brightness of the background by about 1 stop and leave the girl in the photo alone. So I want to selectively brighten part of the background.
What is the best way to do this? In my film days, we dodged and burned in the darkroom. I have watched a lot of youtube tutorials for GIMP and it seems people seem to make a new layer, set to “overlay” and then paint black or white on top of it, then adjust transparency of layer. So maybe that is how to do it in the digital world.
OR, though I have not seen it done this way, I could make a new normal layer, adjust the curves on that layer and paint a layer mask on the new layer so the curves adjustment only affects the parts of the image that I want.
What’s the best approach to this? I’m running GIMP 2.10.0 in Ubuntu.