Package: graphicsmagick-imagemagick-compat Severity: normal Dear Maintainer,
I tried to use convert from graphicsmagick to convert an AdobeRGB image to CMYK, using the ECI profile "ISOcoated_v2_300_eci.icc" from the ECI website. It converted the image to use only the CMY colors, not CMYK. The K channel was there, but it was empty. Now I have converted the same image with the same ICC profile using the original imagemagick convert (6.8.9-9 Q16), and the K channel is doing it's part, with a max value of 0.959 and a mean of 0.797 (so it's not like the image has no black). It looks like the conversion that is labelled CMYK converts only to CMY. That would be misleading (there is a seperate option for CMY). If CMYK can't be supported right now, please consider adding a warning, so that people don't produce botched CMYK conversions. Imagemagick is actually the recommended linux tool for that, so it is likely people will try to use graphicsmagick for it. Thanks for your effort! Michael -- System Information: Debian Release: 8.0 APT prefers testing APT policy: (900, 'testing'), (500, 'stable-updates'), (500, 'proposed-updates'), (500, 'stable'), (10, 'unstable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 3.16.0-4-amd64 (SMP w/4 CPU cores) Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/bash Init: systemd (via /run/systemd/system) Versions of packages graphicsmagick-imagemagick-compat depends on: ii graphicsmagick 1.3.20-3+b1 ii html2ps 1.0b7-1 graphicsmagick-imagemagick-compat recommends no packages. graphicsmagick-imagemagick-compat suggests no packages. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
