"display" incorrectly rendering grayscale PNG

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"display" incorrectly rendering grayscale PNG

Post by naoliv »


We have a bug on Debian http://bugs.debian.org/383531 about display incorrectly rendering some PNG files.
All of the 3 "problematic" files are grayscale with an alpha channel.

The images are available at:
http://people.debian.org/~naoliv/misc/i ... oblem1.png
http://people.debian.org/~naoliv/misc/i ... oblem2.png
http://people.debian.org/~naoliv/misc/i ... oblem3.png

If they are displayed using feh, gqview, Firefox or anything else, they are correctly displayed (with the transparency). But with display, it seems to ignore the alpha channel.

They were last tested with ImageMagick 6.3.7-9.
Is it a know problem?

Thank you!

Best regards,
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Re: "display" incorrectly rendering grayscale PNG

Post by magick »

We can reproduce the problem you posted and will have a patch against ImageMagick 6.3.9-6 Beta to fix the problem by tomorrow. Thanks.
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