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Bug 722084 - Image zooming: bad aliasing
Image zooming: bad aliasing
Status: RESOLVED DUPLICATE of bug 665897
Product: eog
Classification: Core
Component: image viewer
3.10.x
Other Linux
: Normal normal
: ---
Assigned To: EOG Maintainers
EOG Maintainers
Depends on:
Blocks:
 
 
Reported: 2014-01-13 08:41 UTC by Jan Rüegg
Modified: 2014-06-21 12:44 UTC
See Also:
GNOME target: ---
GNOME version: ---

Attachments
Comparison of EOG to Geequie (113.05 KB, image/png)
2014-01-13 08:41 UTC, Jan Rüegg 		Details
The full resolution image that is displayed in the screenshot (41.11 KB, image/png)
2014-01-13 08:42 UTC, Jan Rüegg 		Details

Description Jan Rüegg 2014-01-13 08:41:52 UTC 
Created attachment 266132 [details]
Comparison of EOG to Geequie

When looking at an image with very fine lines, the zoom out quality is quite bad, even when "smooth images when zoomed out" is selected.

See the screenshot, and a comparison to the same image viewed in the "Geeqie" image viewer.
Comment 1 Jan Rüegg 2014-01-13 08:42:33 UTC 
Created attachment 266133 [details]
The full resolution image that is displayed in the screenshot
Comment 2 Felix Riemann 2014-06-21 12:44:07 UTC 
This is due to a lack of bilinear filtering when scaling the image. We have a known issue with cairo here which although it is told to apply bilinear filtering upon scaling only does nearest neighbor filtering.
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Thanks for the bug report. This particular bug has already been reported into our bug tracking system, but please feel free to report any further bugs you find.

*** This bug has been marked as a duplicate of bug 665897 ***