Bug 441836

Summary: Wishlist: make thumbnails for tiny pixelart sharp
Product: [Frameworks and Libraries] kio-extras Reporter: Corbin <schwimmbeckc>
Component: Thumbnails and previewsAssignee: Plasma Bugs List <plasma-bugs>
Status: CONFIRMED ---    
Severity: wishlist CC: kfm-devel, nate
Priority: NOR    
Version: 21.08.0   
Target Milestone: ---   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed In:
Attachments: Side by side with a mockup

Description Corbin 2021-09-01 00:49:14 UTC
Created attachment 141203 [details]
Side by side with a mockup

When viewing small icons (e.g. 16x16 pixels) dolphin currently enlarges the icons (much appreciated), and does so with a smooth scaling algorithm (like cubic interpolation in gimp). This ordinarily works very well for all manner of images, however, for particularly small images, it results in a very blurry preview (see attachment).
What I would like to have, is a an option for images smaller than a certain size to receive no interpolation while scaling, using a very primitive scaling algorithm like "nearest neighbor". This would retain the crisp pixels without simply shrinking the whole image (see attachment for my mockup made in gimp).



SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 21.08.0
KDE Frameworks Version: 5.85.0
Qt Version: 5.15.2