PNG transparency issue IM 6.7.0.5 Q16

Post any defects you find in the released or beta versions of the ImageMagick software here. Include the ImageMagick version, OS, and any command-line required to reproduce the problem. Got a patch for a bug? Post it here.
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fmw42
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PNG transparency issue IM 6.7.0.5 Q16

Post by fmw42 »

IM 6.7.0.5 Q16 Mac OSX tiger

Given the following image:

Image

The following works fine if the output is gif:

convert boxes.gif -transparent white boxes_trans.gif

Image


But creates transparency for the black instead of the white when the output is png.

convert boxes.gif -transparent white boxes_trans.png

Image
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glennrp
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Re: PNG transparency issue IM 6.7.0.5 Q16

Post by glennrp »

The problem seems to exist with both Q8 and Q16 builds at least as far back as IM-6.6.6-1.
(but only with Q16 builds recently, at least from 6.6.9-6 and later)
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glennrp
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Re: PNG transparency issue IM 6.7.0.5 Q16

Post by glennrp »

Fixed in IM-6.7.0-7, SVN revision 4608.
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fmw42
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Re: PNG transparency issue IM 6.7.0.5 Q16

Post by fmw42 »

glennrp wrote:Fixed in IM-6.7.0-7, SVN revision 4608.

Thanks Glenn,

Fred
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fmw42
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Re: PNG transparency issue IM 6.7.0.5 Q16

Post by fmw42 »

thanks glenn,

this issue seems to be fixed in IM 6.7.0.7 Q16 Mac OSX tiger

this now works correctly.

convert boxes.gif -transparent white boxes_trans.png


Fred
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