Bug 347787

Summary: wish: make saturated pixels (white or black) blink as on cameras
Product: [Applications] gwenview Reporter: Frédéric Bron <frederic.bron>
Component: generalAssignee: Gwenview Bugs <gwenview-bugs-null>
Status: REPORTED ---    
Severity: wishlist CC: huon, myriam
Priority: NOR    
Version First Reported In: Other (add details in bug description)   
Target Milestone: ---   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Frédéric Bron 2015-05-16 10:39:06 UTC 
On my camera, I see pixels with color #000000 or #FFFFFF blinking. This is very useful to assess the exposition. When I look at the pictures with gwenview, I miss this feature.

Reproducible: Always



Expected Results:  
when one of more of the 3 colors (red, green, blue) reaches 0 or 255, the pixel is viewed during 0.5 s as recorded and 0.5 s as pure white or pure black, that is, the color that is the most different. This can be determined as follows: calculate the average color (gray): g=(r+g+b)/3., if g<128, show #FFFFFF, if g>128, show #000000. We could also just show the complementary color (255-r, 255-g, 255-b).

My Gwenview version: 4.14.0 pre on KDE 4.14.6 on Fedora 20.
Comment 1 Huon 2018-04-22 05:44:42 UTC 
I would argue this is not a feature that should be in a simple image viewer, but rather a photo editor.