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Bug 579956 - Resize produces pixelation
Resize produces pixelation
Status: RESOLVED DUPLICATE of bug 553390
Product: GIMP
Classification: Other
Component: Tools
2.6.6
Other All
: Normal normal
: ---
Assigned To: GIMP Bugs
GIMP Bugs
Depends on:
Blocks:
 
 
Reported: 2009-04-23 13:20 UTC by Sune D.
Modified: 2009-05-21 18:37 UTC
See Also:
GNOME target: ---
GNOME version: ---

Attachments
Original image (97.75 KB, image/png)
2009-04-23 13:21 UTC, Sune D. 		Details
Resized with GIMP 2.6.6, Cubic (57.41 KB, image/png)
2009-04-23 13:22 UTC, Sune D. 		Details
Resized with ImageMagick 6.5, Bicubic (67.98 KB, image/png)
2009-04-23 13:22 UTC, Sune D. 		Details

Description Sune D. 2009-04-23 13:20:31 UTC 
Please describe the problem:
Since GIMP 2.6 resizing images produces slight pixelation, no matter which interpolation method is used. I don't know if it's supposed to be a feature since the resulting image is a bit sharper, but I really don't like the ragged edges.
I attached three images, one is the original, one resized with GIMP 2.6.6 and one with ImageMagick 6.5 to show the difference of the resizing output with almost the same interpolation method.

Steps to reproduce:


Actual results:


Expected results:


Does this happen every time?


Other information:
Comment 1 Sune D. 2009-04-23 13:21:18 UTC 
Created attachment 133176 [details]
Original image
Comment 2 Sune D. 2009-04-23 13:22:11 UTC 
Created attachment 133177 [details]
Resized with GIMP 2.6.6, Cubic
Comment 3 Sune D. 2009-04-23 13:22:54 UTC 
Created attachment 133178 [details]
Resized with ImageMagick 6.5, Bicubic
Comment 4 Sven Neumann 2009-05-21 18:37:08 UTC 
Sure, the scaling can be improved and we are aware of the issues. This is already handled in other bug reports.

Fortunately there is a good chance that we will get an improved resampler for GIMP 2.8. There is someone working on this.

*** This bug has been marked as a duplicate of 553390 ***