[CinePaint] curves problem in cinepaint-0.22-1

[Peter L. <pet...@gm...>]

Hi,

I'm new to the list, forgive me if this has been discussed before. I
searched and found nothing.

Here's the problem: it appears that curves are not applied to all
pixels, some pixels are left out. I posted an example at
http://tachyon.uwaterloo.ca/~plangfelder/CinepaintCurvesProblem/ . The
file
http://tachyon.uwaterloo.ca/~plangfelder/CinepaintCurvesProblem/tmp.jpg
is the original, sizes for easy viewing. The file
http://tachyon.uwaterloo.ca/~plangfelder/CinepaintCurvesProblem/tmp-curves.jpg
has had a (rather extreme, I admit) curve applied in the green channel
that took the green levels down by a lot. Notice that some pixels
retained their original colors. I'm willing to go digging through
curves.c, but perhaps this is something simple that can be fixed
quickly by people who already know the tool. I have noticed this in
0.21-1 and 0.18 as well, it seems to be an old problem. It happens on
16-bit tiffs as well as 8-bit jpgs. It is also present if one tries to
change the value channel rather than the individual colors.

Thanks and best regards,

Peter