Legacy ImageMagick Discussions Archive

IM 6.7.6.9beta Q16 Mac OSX Snow Leopard.

I am having trouble with -compose copy_opacity.

Test:

IM 6.7.6.9beta: (transparency not showing)

convert logo: -resize 50% logo2.png


convert logo2.png -fill black -opaque white -fill white +opaque black logo2mask.png


convert logo2.png logo2mask.png -alpha off -compose copy_opacity -composite logo2trans2.png



IM 6.7.4.10 (same input images as above) (transparency showing fine)
im6 convert logo2.png logo2mask.png -alpha off -compose copy_opacity -composite logo2trans1.png

This does not appear to be fixed in IM 6.7.6.9beta as of 8:35 PM PDT Thursday night.

This is still not fixed in the latest IM 6.7.6.9 beta as of 7:25 PM PDT

I downloaded and installed the 6.7.6.9 beta this morning from http://www.imagemagick.org/download/beta/ which is dated 04-May-2012 21:39 10M

This bug is still not fixed. It is still coming out opaque with no transparency.

This is not fixed in 6.7.6.9 beta dated 05-May-2012 18:03. It is still totally opaque. It now has an alpha channel but all values are opaque.

I think it has to do with the second step

convert logo2.png -fill black -opaque white -fill white +opaque black logo2mask.png

This image is coming out grayscale rather than sRGB. Might that be the issue?

Fixed in ImageMagikc 6.7.6-9 Beta available in about an hour.

magick wrote:Fixed in ImageMagikc 6.7.6-9 Beta available in about an hour.

This does indeed now work in the latest beta as of this morning.

Fred