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Resizing PNG-24 images causes all alpha channel transparency to be lost and transparent pixels to be turned black
Closed, ResolvedPublic

Description

Author: t.laqua

Description:
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


Version: 1.11.x
Severity: normal
URL: http://www.poxwiki.com/Sandbox

Details

Reference
bz10783

Event Timeline

bzimport raised the priority of this task from to Normal.Nov 21 2014, 9:50 PM
bzimport set Reference to bz10783.
bzimport added a subscriber: Unknown Object (MLST).
bzimport created this task.Aug 2 2007, 10:54 PM

t.laqua wrote:

Bitmap.php Patch f/ PNG-24 Alpha Trans fix

Attached:

t.laqua wrote:

Patched.

t.laqua wrote:

Fixed in r25023.

Gilles moved this task from Untriaged to Done on the Multimedia board.