On Wed, 2013-07-10 at 11:59 -0400, Bill Mattison wrote:
- I also tried the Gimp as per Matthew Miller's suggestion. I found
the functionality that I believe he's referring to. The Gimp seems to insist on making the adjustment a curve rather than a straight line.
Try: Rather than click in the middle of the graph, and move the line with a curve. Click on an end point and move it.