https://bugzilla.wikimedia.org/show_bug.cgi?id=17645
Tim Starling <tstarl...@wikimedia.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |tstarl...@wikimedia.org
Severity|blocker |normal
Status|NEW |RESOLVED
Priority|Highest |Normal
Resolution| |WONTFIX
Summary|Image thumbnailing for |OOM while thumbnailing huge
|certain images broken, |progressive JPEGs
|causing these images to be |
|unusable |
--- Comment #2 from Tim Starling <tstarl...@wikimedia.org> 2009-02-25 03:21:28
UTC ---
Do not use interlaced (a.k.a. progressive) JPEG compression. This option
greatly increases the amount of memory required for decompression, and thus
reduces performance both for the server and for clients such as browsers. All
three cited test cases use this compression mode.
I have uploaded one of the three files with interlacing removed:
<http://commons.wikimedia.org/wiki/File:Suikoden_(no_interlace).jpg>
As you can see, it works just fine. You can do this with ImageMagick using:
convert Source.jpg -interlace none Destination.jpg
Omitting the -interlace, i.e. a null convert, also appears to work.
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