Bug 477398

Summary:	Color sample tool displays incorrect color
Product:	[Applications] krita	Reporter:	killy <80536642>
Component:	HDR	Assignee:	Krita Bugs <krita-bugs-null>
Status:	CONFIRMED ---
Severity:	normal
Priority:	NOR
Version First Reported In:	5.2.1
Target Milestone:	---
Platform:	Microsoft Windows
OS:	Microsoft Windows
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description killy 2023-11-23 02:55:01 UTC

SUMMARY
When I modified the preferred output format to Rec. 709 Linear, the color sample tool displayed incorrect color.
Here's the link to KA's report with pictures attached: https://krita-artists.org/t/help-color-sample-tool-displays-incorrect-color/78595

STEPS TO REPRODUCE
1. Open Settings, switch to Display tab, then switch to HDR Settings tab, change Preferred Output Format to Rec.709 Linear (16 bit) and restart krita.
2. Create a new canvas, use any tool to draw colours, use the Colour Sampler tool to sample the drawn colours, the preview colours shown by the Colour Sampler tool do not match the drawn colours shown on the canvas.

OBSERVED RESULT
The preview colours shown by the colour sampling tool should be consistent with the colours already drawn on the canvas.



EXPECTED RESULT


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

ADDITIONAL INFORMATION

Comment 1 killy 2023-11-23 04:30:38 UTC

(In reply to killy from comment #0)
> SUMMARY
> When I modified the preferred output format to Rec. 709 Linear, the color
> sample tool displayed incorrect color.
> Here's the link to KA's report with pictures attached:
> https://krita-artists.org/t/help-color-sample-tool-displays-incorrect-color/
> 78595
> 
> STEPS TO REPRODUCE
> 1. Open Settings, switch to Display tab, then switch to HDR Settings tab,
> change Preferred Output Format to Rec.709 Linear (16 bit) and restart krita.
> 2. Create a new canvas, use any tool to draw colours, use the Colour Sampler
> tool to sample the drawn colours, the preview colours shown by the Colour
> Sampler tool do not match the drawn colours shown on the canvas.
> 
> OBSERVED RESULT
> 
> 
> EXPECTED RESULT
> The preview colours shown by the colour sampling tool should be consistent
> with the colours already drawn on the canvas.
> 
> 
> 
> SOFTWARE/OS VERSIONS
> Windows: 
> macOS: 
> Linux/KDE Plasma: 
> (available in About System)
> KDE Plasma Version: 
> KDE Frameworks Version: 
> Qt Version: 
> 
> ADDITIONAL INFORMATION

Comment 2 killy 2023-11-23 04:33:08 UTC

Sorry, I seem to have set the wrong label, the correct one should be:

EXPECTED RESULT
The preview colours shown by the colour sampling tool should be consistent with the colours already drawn on the canvas.