I got a scene where there is a lake. I want to change only the color of the water. therefore if I want to color correct, I need to remove the bushes and more elements around the water. Keying could , i guess, the best way to approach, instead masking ( the small bushes are complicate to mask).
I guess the fastest way, should be keying the water than the rest of the elements and invert the selection, to really delete the bushes.
Option 1: Track the mountains and sky in mocha... should be easier than the water. Use the resulting mask inversely to color correct only the water.With a feather on the mask you would be surprised how imperfect the matte can be and still be convincing. So don't even worry about the bushes... just use a basic matte around where the leaves generally are.
Option 2: If I was doing it I would just isolate the lake color in Apple Color and adjust it there. This can also be accomplished with Color Finesse inside AE.