Bug 403836

Summary:	git 0858d79 Colour Selector (Shift + I) Has limited hue range between Cyan and Violet-Blue
Product:	[Applications] krita	Reporter:	Andrew Zhou <dodeqaa>
Component:	Color Selectors	Assignee:	Krita Bugs <krita-bugs-null>
Status:	RESOLVED DUPLICATE
Severity:	normal	CC:	freebox64, griffinvalley
Priority:	NOR
Version:	nightly build (please specify the git hash!)
Target Milestone:	---
Platform:	Microsoft Windows
OS:	Microsoft Windows
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Andrew Zhou 2019-02-01 15:56:04 UTC

SUMMARY

git 0858d79 Colour Selector (Shift + I) Has limited hue range between Cyan and Violet-Blue

Also Krita seems to display colours slightly differently even though the ICC profile used for display is the same.

STEPS TO REPRODUCE
1. *as per video
2. 
3. 

OBSERVED RESULT

There should be a middle hue between cyan and violet-blue but Krita's hue shifts to violet tints almost immediatly. Also for that region, saturation seems to be 
limited.

Using Photoshop CS6 using Adobe RGB 1998 display profile as a reference.

EXPECTED RESULT




SOFTWARE/OS VERSIONS
Windows: 10.0.17134 Pro 
MacOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION

Working files : Tiff files from ps and krita

https://drive.google.com/open?id=1YW00pDHzwC7cWdjHxtfwzu9bQMAB1J5A

https://drive.google.com/open?id=1cS8eE5YLtiMVUsKBrFZREzgb8s9il3jb

Comment 1 Andrew Zhou 2019-02-01 15:58:01 UTC

Link to video, not sure if the attachment was accepted. 

https://drive.google.com/open?id=1DaTTBs_u__lsy3RUkx9SjQVB_K0rNJuU

Comment 2 mvowada 2019-02-06 08:41:07 UTC

Same working profile, same display profile but two different results when picking colours in Krita and PS?

Krita colour selector can't pick the same blues as in PS?

Comment 3 Andrew Zhou 2019-02-06 13:11:05 UTC

(In reply to mvowada from comment #2)
> Same working profile, same display profile but two different results when
> picking colours in Krita and PS?
> 
> Krita colour selector can't pick the same blues as in PS?

Yea that's right, also checked that I haven't enabled Soft Proofing in Krita, or used system Monitor Profile for Krita. 

Its like theres a blue hue range missing between blues closer to greens and blues closer to violet. Also where this range is supposed to be the saturation seems to be restricted.

Comment 4 wolthera 2019-04-08 15:08:08 UTC

Ah, this is caused by those files both using Adobe RGB. The advanced color selector has long since had the issue it cannot select wide gamut colors. If you use the specific color selector, the internal color select(that's the one you get when pressing the dual button at the top), or the small color selector in 4.2 pre-alpha it should be possible.

In the meantime, I will mark this bug report as a duplicate.

*** This bug has been marked as a duplicate of bug 343531 ***

Comment 5 Andrew Zhou 2019-11-05 03:56:53 UTC

(In reply to wolthera from comment #4)
> Ah, this is caused by those files both using Adobe RGB. The advanced color
> selector has long since had the issue it cannot select wide gamut colors. If
> you use the specific color selector, the internal color select(that's the
> one you get when pressing the dual button at the top), or the small color
> selector in 4.2 pre-alpha it should be possible.
> 
> In the meantime, I will mark this bug report as a duplicate.
> 
> *** This bug has been marked as a duplicate of bug 343531 ***

Thank you!