With photoshop this is pretty straight forward and I do not know what I am missing. I have a level adjustment and I slide the dark side in. Now I want to paint part of it back. If I use black or white it just leaves gray streaks. Please see videocast. What am I missing?
https://www.dropbox.com/s/gjuq2zymnnkl3fc/Recording %23134.mp4?dl=0