[libGD] #195 [Task opened] Buggy antialiasing on rotation function

[email protected] Wed, 25 Mar 2009 13:15:15 +0100 (CET)
Newsgroups php.gd.bugs
Message-ID <[email protected]>
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A new Flyspray task has been opened.  Details are below. 

User who did this - Michael Tyson (michaeltyson) 

Attached to Project - libGD
Summary - Buggy antialiasing on rotation function
Task Type - Bug Report
Category - General
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Medium
Priority - Normal
Reported Version - 2.0.35
Due in Version - Undecided
Due Date - Undecided
Details - (Note: Reported version is 2.0.34; if this has been fixed in 2.0.35, then please accept my apologies)

imagerotate has an antialiasing bug, where edges of rotated images are visibly jagged.
See attached sample code/image.

Current workaround is to scale image up 2 or 4x, apply rotation, then scale down.  This is slow.

More information can be found at the following URL:
http://bugs.libgd.org/?do=details&task_id=195

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