Package: imagemagick Version: 8:6.9.11.60+dfsg-1.3+deb11u1 Severity: normal X-Debbugs-Cc: prudl...@insite.coop
Dear Maintainer, When converting a PNG image to AVIF, transparent pixels are replaced with black pixels. It can be reproduced with this image: https://upload.wikimedia.org/wikipedia/commons/9/9d/Alpha_transparency_image.png With this command: convert Alpha_transparency_image.png Alpha_transparency_image.avif It seems to be a known issue fixed in ImageMagick 7: https://alexwlchan.net/2023/check-for-transparency/ -- Package-specific info: ImageMagick program version --------------------------- animate: ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org compare: ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org convert: ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org composite: ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org conjure: ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org display: ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org identify: ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org import: ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org mogrify: ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org montage: ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org stream: ImageMagick 6.9.11-60 Q16 x86_64 2021-01-25 https://imagemagick.org -- System Information: Debian Release: 11.6 APT prefers oldstable-updates APT policy: (500, 'oldstable-updates'), (500, 'oldstable-security'), (500, 'oldstable') Architecture: amd64 (x86_64) Kernel: Linux 5.15.0-76-generic (SMP w/8 CPU threads) Locale: LANG=C, LC_CTYPE=C (charmap=UTF-8) (ignored: LC_ALL set to en_US.utf8), LANGUAGE not set Shell: /bin/sh linked to /bin/dash Init: unable to detect Versions of packages imagemagick depends on: ii imagemagick-6.q16 8:6.9.11.60+dfsg-1.3+deb11u1 imagemagick recommends no packages. imagemagick suggests no packages. -- no debconf information
