Re: [CinePaint] curves problem in cinepaint-0.22-1

On Sun, 27 Apr 2008 15:06:27 -0700
"Peter Langfelder" <[email protected]> wrote:

> 
> > > the curve was very simple - I dragged the top point in the green
> >  > channel down to maybe 25%. So the end result was a straight (linear)
> >  > curve starting at (0,0) and ending at (255, 64) or so.
> >

Using the image that you posted, tmp.jpg, I was not able to
reproduce the problem.  Nor was I able to reproduce it with
other 8-bit JPEG images that I loaded.

But using a 16-bit TIFF file, I _was_ able to reproduce the effect.
Also, loading an 8-bit image and then converting it within cinepaint
to either 16-bit or floating point will reproduce the effect.
If a 16-bit image is reduced within cinepaint to 8-bit, the effect
does not occur.

So on my system, the effect is limited to 16-bit or floating point
images.  In your original post, however, you state that the effect
is observed in both 8-bit and 16-bit.

FP

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