I make my collages by hand, but I always scan them into the computer and adjust the levels a bit for the final image. Every once in a while I’ll scan one into the computer and it just doesn’t look right. Originally, the steeple in this piece looked like this:
When this happens, I’ll save the file just in case, then go back to the desk, pull up the tape, and fix the patch:
I call this “Analog Ctrl-Z.”