Last modified: 2007-08-22 00:51:05 UTC

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Bug 10783 - Resizing PNG-24 images causes all alpha channel transparency to be lost and transparent pixels to be turned black
Resizing PNG-24 images causes all alpha channel transparency to be lost and t...
Product: MediaWiki
Classification: Unclassified
File management (Other open bugs)
All All
: Normal normal (vote)
: ---
Assigned To: Nobody - You can work on this!
Depends on:
  Show dependency treegraph
Reported: 2007-08-02 22:54 UTC by Tim Laqua
Modified: 2007-08-22 00:51 UTC (History)
0 users

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

Bitmap.php Patch f/ PNG-24 Alpha Trans fix (1.18 KB, patch)
2007-08-02 22:55 UTC, Tim Laqua

Description Tim Laqua 2007-08-02 22:54:16 UTC
When a PNG-24 image using alpha channel transparency is resized (i.e. thumbnailed), all transparent areas are turned black - transparency is lost.

Known issue w/ PHP-GD, Patch attached.

-Tim Laqua
Comment 1 Tim Laqua 2007-08-02 22:55:33 UTC
Created attachment 3968 [details]
Bitmap.php Patch f/ PNG-24 Alpha Trans fix
Comment 2 Tim Laqua 2007-08-22 00:44:48 UTC
Comment 3 Tim Laqua 2007-08-22 00:51:05 UTC
Fixed in r25023.

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