Bug #53580 [Opn->Asn]: During resize gdImageCopyResampled cause colors change
| From: | felipe@php.net | Date: | Sun, 29 May 2011 16:38:50 +0000 |
| Subject: | Bug #53580 [Opn->Asn]: During resize gdImageCopyResampled cause colors change | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-161036@lists.php.net to get a copy of this message | ||
Edit report at http://bugs.php.net/bug.php?id=53580&edit=1
ID: 53580
Updated by: felipe@php.net
Reported by: chupakabr at gmail dot com
Summary: During resize gdImageCopyResampled cause colors
change
-Status: Open
+Status: Assigned
Type: Bug
Package: GD related
Operating System: Windows, Ubuntu, CentOS, any?
PHP Version: 5.2.16
-Assigned To:
+Assigned To: pajoye
Block user comment: N
Private report: N
Previous Comments:
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[2010-12-20 09:45:26] chupakabr at gmail dot com
Description:
------------
Reproduce:
To test resize image containing solid white background. After resize
pixels with
color different from #FFFFFF will appear.
Probable cause:
gdImageSetPixel parameters (red, green, blue, alpha) are casted to int
in
gdImageCopyResampled which cause them to floor so 254.9999999 became 254
instead
of 255.
Issues seem to be related:
http://bugs.php.net/bug.php?id=30591
http://bugs.php.net/bug.php?id=41820
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Edit this bug report at http://bugs.php.net/bug.php?id=53580&edit=1