https://bugs.kde.org/show_bug.cgi?id=422267
Bug ID: 422267
Summary: Advanced color selector hue rotate affects
saturation/value in 16 bit color space
Product: krita
Version: 4.3.0-beta1
Platform: MS Windows
OS: Microsoft Windows
Status: REPORTED
Severity: normal
Priority: NOR
Component: Color Selectors
Assignee: krita-bugs-n...@kde.org
Reporter: andrew.arv.s...@gmail.com
Target Milestone: ---
Created attachment 128937
--> https://bugs.kde.org/attachment.cgi?id=128937&action=edit
Screenshot of the incorrect color
SUMMARY
When painting in a 16 bit color space, after picking a color and rotating the
hue with the advanced color selector, the luminosity/value/intensity isn’t
preserved and the color gets darker. This is especially noticeable with dark
colors. All HSx color modes are affected.
STEPS TO REPRODUCE
1. Create a new RGB/Alpha image set to 16 bit integer/channel with
sRGB-elle-V2-g10.icc as the profile.
2. Paint some colors (doesn't matter which, but darker colors will be more
noticeable)
3. Pick the color with the color picker
4. Click the hue rotate ring in the advanced color selector. Even the smallest
rotation should still work.
OBSERVED RESULT
The luminosity/value/intensity changed (likely darker).
EXPECTED RESULT
The luminosity/value/intensity should remain unchanged.
SOFTWARE/OS VERSIONS
Windows: 10 Home 64 bit
Krita 4.2.9/4.3.0 beta 1
ADDITIONAL INFORMATION
More information, including additional screenshots of the issue, is available
in this forum thread:
https://krita-artists.org/t/bug-with-advanced-color-selector-hue-in-16-bit-color-space/7557
This issue seems similar to https://bugs.kde.org/show_bug.cgi?id=317648 but not
quite the same.
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