Bug 330023 - Large JPGs seem scaled even if viewed at 100% zoom.
Summary: Large JPGs seem scaled even if viewed at 100% zoom.
Status: RESOLVED FIXED
Alias: None
Product: gwenview
Classification: Applications
Component: general (other bugs)
Version First Reported In: Other (add details in bug description)
Platform: Kubuntu Linux
: NOR normal
Target Milestone: ---
Assignee: Gwenview Bugs
URL: https://picasaweb.google.com/11362358...
Keywords:
: 336308 (view as bug list)
Depends on:
Blocks:
 
Reported: 2014-01-16 11:59 UTC by Kamil Stepinski
Modified: 2017-09-09 04:17 UTC (History)
3 users (show)

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Description Kamil Stepinski 2014-01-16 11:59:56 UTC 
JPG display quality is low when viewing large JPG files.
See the screenshot.
Gwenview on left, Firefox on right - both at 100% zoom level.
Take a look at fonts on the:
- black background - word "entirely" - the "l" letter is gone when viewed with gwenview.
 - orange background - letter "m" in the "marketing" word or letter "W" in the "WITH" word.
This behaviour that looks like interpolation can be seen in other places too - but the 2 examples above should show the problem clearly.
If I'm not mistaken this shouldn't happen at 100% zoom level - pictures should be pixel perfect then?

OS: Kubuntu 13.04

Reproducible: Always

Steps to Reproduce:
1. Download the example picture to the hard drive:
http://cdn2.hubspot.net/hub/53/blog/images/the-history-of-marketing-HUBSPOT-resized-600.jpg
2. Open at 100% view with gwenview and in other browser (checked Firefox, Chromium, ImageMagick). Image in gwenview looks bad (qualitatively) in comparison.
Comment 1 Christoph Feck 2014-06-16 12:12:28 UTC 
*** Bug 336308 has been marked as a duplicate of this bug. ***
Comment 2 Nate Graham 2017-09-09 04:17:49 UTC 
Looks great to me with Gwenview 17.11.70 in KDE Neon.