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Created attachment 474450 [details] Original GIF image I have reported this bug to CentOS but they recommended it to report to the upstream as well. http://bugs.centos.org/view.php?id=4707 Environment: ------------ Linux server 2.6.18-194.26.1.el5 #1 SMP Tue Nov 9 12:54:20 EST 2010 x86_64 x86_64 x86_64 GNU/Linux CentOS release 5.5 (Final) Problem: -------- ImageMagick from the CentOS 5.5 repository: Name : ImageMagick Version : 6.2.8.0 Release : 4.el5_5.3 Size : 3.3 M Repo : updates appears to have an issue with GIF to PNG conversion. The PNG that is produced as output is "screwed up". I have tried both the i386 and x86_64 package, the result is the same. Effect: ------- The original GIF: http://truemetal.org/universe/im-bug/be.gif # file be.gif be.gif: GIF image data, version 89a, 32 x 14 The output PNG with ImageMagick 6.2.8.0 from CentOS 5.5: http://truemetal.org/universe/im-bug/result-1-by-im628.png The output PNG with ImageMagick 4.2.9 on the same machine: http://truemetal.org/universe/im-bug/result-2-by-im429.png The output PNG with ImageMagick 6.6.7-1 RPM from imagemagick.org on the same machine: http://truemetal.org/universe/im-bug/result-3-by-im667.png More info from "file" (they're all the same): # file result-1-by-im628.png result-1-by-im628.png: PNG image data, 32 x 14, 2-bit colormap, non-interlaced # file result-2-by-im429.png result-2-by-im429.png: PNG image data, 32 x 14, 2-bit colormap, non-interlaced # file result-3-by-im667.png result-3-by-im667.png: PNG image data, 32 x 14, 2-bit colormap, non-interlaced How to repeat: -------------- # /usr/bin/convert -geometry 32x14! be.gif output.png Workaround: ----------- Install ImageMagick 6.6.7-1 RPM from the official source: http://www.imagemagick.org/script/binary-releases.php
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