https://bugs.kde.org/show_bug.cgi?id=397346
Dmitry Kazakov <dimul...@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|CONFIRMED |NEEDSINFO
Resolution|--- |WAITINGFORINFO
Assignee|krita-bugs-n...@kde.org |dimul...@gmail.com
--- Comment #13 from Dmitry Kazakov <dimul...@gmail.com> ---
Hi, Alex!
I'm sorry for a very long delay with the bug. But I still cannot see, what the
problem is?
If you set both masks' (black and white) to 68. they recover the original
gradient completely.
Though speaking truly, I'm not sure that this filter is designed to do precise
maths, because the result of deltaE (CIE76) is calculated in linear gamma
space, but blending happens in sRGB with gamma ~2.2. We might try to think
about a bit more intuitive values for it, but then we will have to change the
difference calculation algorithm itself.
Could you specify what exactly was the usecase you tried to solve with the
filter? Perhaps we could think about a better difference calculation algorithm
then.
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