RFE: checkbox to limit curves tool to always increase (not flatten or invert)
@mattdm
Submitted by Matthew Miller Link to original bug (#746611)
Description
In most photographic correction, it only makes sense for the curve in the curves tool to always increase -- never invert or even completely flatten. The line should, in other words, always go up from left to right.
It would be nice to have a checkbox in the tool dialog to constrain the curve in this way, or another set of options under "curve type" (like "Smooth (always increasing).
Of course, there are some cases where more crazy curves are desired, but this would be very handy when tweaking photographs
Version: git master