https://bugs.kde.org/show_bug.cgi?id=483669
Bug ID: 483669
Summary: Adding certain effects after Saturation effect, (Color
balance, contrast, temperature, etc), alter the colors
of footage with red-ish tint.
Classification: Applications
Product: kdenlive
Version: 24.02.0
Platform: Flatpak
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Effects & Transitions
Assignee: j...@kdenlive.org
Reporter: nuxt...@gmail.com
Target Milestone: ---
SUMMARY
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STEPS TO REPRODUCE
1. Create new project.
2. Import video clip with human characters (for skin tone).
3. Add clip to timeline.
4. Add Saturation effect to clip.
5. Set Saturation to 250 (for more pronounced results).
6. Add following effects after Saturation: Color Balance, Color Contrast, Color
Channel Mixer, CMYK adjust, Color Temperature.
7. Toggle effects on and off, except Saturation.
OBSERVED RESULT
Without changing the values of the additional effects (after Saturation),
the colors in the footage are altered.
EXPECTED RESULT
Without changing the values of the additional effects (after Saturation),
the colors in the footage should remain unchanged (until users makes changes to
values).
SOFTWARE/OS VERSIONS
Windows:
macOS:
Linux/KDE Plasma: Linux Mint Cinnamon.
(available in About System)
KDE Plasma Version:
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2
ADDITIONAL INFORMATION
If Saturation is moved to the bottom of the Effect/Composition Stack, the
anomaly stops.
The bug is trues in earlier versions of Kdenlive, prior to Qt 6.6.2.
Notice that the anomaly is accumulative with each of the named effects added
after Saturation.
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