Last modified: 2006-03-09 21:18:36 UTC

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Bug 5211 - Thumbnailer may produce PNG thumbnails many times the size of the original.
Thumbnailer may produce PNG thumbnails many times the size of the original.
Status: RESOLVED DUPLICATE of bug 1218
Product: MediaWiki
Classification: Unclassified
File management (Other open bugs)
PC Windows XP
: Lowest enhancement (vote)
: ---
Assigned To: Nobody - You can work on this!
Depends on:
  Show dependency treegraph
Reported: 2006-03-09 08:24 UTC by Kevin Breitenstein
Modified: 2006-03-09 21:18 UTC (History)
0 users

See Also:
Web browser: ---
Mobile Platform: ---
Assignee Huggle Beta Tester: ---


Description Kevin Breitenstein 2006-03-09 08:24:58 UTC
This is an extreme case I created of by uploading a 8-bit
pallet version of the image.

The actual image is 3,943 bytes, the 'thumbnail' manages to be 41,211 bytes,
thats over 10 times the original.  
The original file size was around 16 KB, and its thumbnail was in excess of 100KB.

Might as well send the user the original image and let their browser resize it
than use a thumbnail far larger than the original file size.

There should be serious consideration to improving the output of the thumbnailer
in some manner so a PNG thumbnail isn't 10x or more of its original.
Comment 1 Brion Vibber 2006-03-09 21:18:36 UTC

*** This bug has been marked as a duplicate of 1218 ***

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