Ok, I came across this open thread thinking that it was abandoned (it's from 2015!), but apparently there have been a few messages in the past few days, so at least I know I'm not insane... as the OP said, I was assuming that IM on Ubuntu (even on my old 16.04.6 LTS Xenial) came with the JP2 coder built-in, and, indeed, I *thought* that this was the case:
# convert -list coder | grep JP2 J2C JP2 J2K JP2 JPC JP2 JPM JP2 JPT JP2 JPX JP2 PGX JP2 But clearly this is *not* true, since on ImageMagick 6.8.9-9 Q16 x86_64 built in 2019-11-12 I get: Delegates: bzlib cairo djvu fftw fontconfig freetype jbig jng jpeg lcms lqr ltdl lzma openexr pangocairo png rsvg tiff wmf x xml zlib (well, I have added a lot of stuff, thus Cairo etc. are listed) I also have installed *both* jasper (lib and runtime) as well as libopenjp2-7 (and libopenjpeg-dev & libjpeg62-dev & openjpeg-tools for good measure...). I'm not really familiar with IM — I thought, for instance, that you could just tweak the .xml files and get 'instant' results without needing to recompile it — so I guess that my only choice is to install IM from the sources to get JPEG-2000 support?... I have little faith that, after 5 years, there are still developers with free time and willingness to 'fix' this bug, especially because I can very well imagine that the latest Ubuntu versions have fixed this somehow... There *is* a PPA listing imagemagick-jp2 which *does* have working JPEG-2000 support, but they haven't applied the latest security patches... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1447968 Title: ImageMagick is missing JPEG2000 support (needs to be built with openjpeg) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/imagemagick/+bug/1447968/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs