Bug 416795

Summary:	Whitebalance keyframes do not keep/store the white balance color
Product:	[Applications] kdenlive	Reporter:	phu <ph.huber>
Component:	Video Effects & Transitions	Assignee:	Jean-Baptiste Mardelle <jb>
Status:	CONFIRMED ---
Severity:	wishlist	CC:	b-misc, fritzibaby, julius.kuenzel
Priority:	NOR	Keywords:	triaged
Version First Reported In:	19.12.1	Flags:	fritzibaby: Brainstorm+
Target Milestone:	---
Platform:	Microsoft Windows
OS:	Microsoft Windows
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description phu 2020-01-26 16:53:47 UTC

SUMMARY

Whitebalance effect (color picker) can not be used with keyframes.

STEPS TO REPRODUCE
1. Load a video
2. add a white balance (LMS space) effect
3. add keyframes
4. for each keyframe choose a color area with the color picker

OBSERVED RESULT

The picked color is not stored with the keyframe. only the color temperature is stored. this is a pitty because the color picker would be such a good tool.
EXPECTED RESULT


SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION


Suggestion for an automated white balance effect:
Define (with key frames) a square box in the video (size and position variable per key frame). The average color inside the box defines white. Automatically adjust the color for the rest of the picture according that defined white color.

BR
PHU

Comment 1 Julius Künzel 2021-09-28 13:08:00 UTC

Thanks for your report! The white balance (LMS space) effect doesn't support key frames for the neutral color. This needs to be changed upstream before we can change this in Kdenlive. As it might suffice to change this in mlt (where Kdenlive devs contribute to), I keep this open as a feature request.

Comment 2 mau 2022-02-21 12:49:13 UTC

Would be nice to have; in the meantime, it would be great to see that color is not relative to keyframes (took me some minutes to find out...).

Comment 3 Julius Künzel 2022-11-20 15:39:13 UTC

Small update: support for keyframable colors just landed in MLT recently (7.12.0) we can soon start to implement this in Kdenlive (probably for version 23.04, but NOT for upcoming 22.12)