possible miff or -alpha shape bug IM 6.9.6.2 Q16 Mac OSX

[fmw42]

From Anthony's page at http://www.imagemagick.org/Usage/masking/#alpha_shape, if saved to miff in IM 6.9.6.2, it does not work and one gets a black moon on transparency. If saved to mpc or png it works fine.

Input:


IM 6.9.6.2

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convert moon.png -background red -alpha shape moon_red.miff

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convert moon.png -background red -alpha shape moon_red.mpc

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convert moon.png -background red -alpha shape moon_red.png

Also using IM 7.0.3.4 Q16, all three result is solid red.

[magick]

Thanks for the problem report. We can reproduce it and will have a patch to fix it in GIT master branch @ https://github.com/ImageMagick/ImageMagick later today. The patch will be available in the beta releases of ImageMagick @ http://www.imagemagick.org/download/beta/ by sometime tomorrow.

[fmw42]

Thanks