[Bug 1447968] Re: ImageMagick is missing JPEG2000 support (needs to be built with openjpeg)

[Gwyneth Llewelyn]

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...

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https://bugs.launchpad.net/bugs/1447968

Title:
  ImageMagick is missing JPEG2000 support (needs to be built with
  openjpeg)

Status in imagemagick package in Ubuntu:
  In Progress
Status in imagemagick package in Debian:
  Fix Released

Bug description:
  ImageMagick had been always built with JPEG2000 support ("JPEG-2000
  --with-jp2=yes              yes").  Since Vivid Vervet's  8:6.8.9.9-5
  version it's not more built with jp2 support thus it lost the support
  to work with JPEG2000 images ("JPEG-2000         --with-jp2=").

  This is pretty annoying, as JPEG 2000 is pretty popular lossless
  format.

  $ identify -version
  Version: ImageMagick 6.8.9-9 Q16 x86_64 2015-01-06 http://www.imagemagick.org
  Copyright: Copyright (C) 1999-2014 ImageMagick Studio LLC
  Features: DPC Modules OpenMP
  Delegates: bzlib djvu fftw fontconfig freetype jbig jng jpeg lcms lqr ltdl lzma openexr pangocairo png tiff wmf x xml zlib

  $ identify pic.jp2
  identify: no decode delegate for this image format `JP2' @ error/constitute.c/ReadImage/501.

  $ file pic.jp2
  pic.jp2: JPEG 2000 Part 1 (JP2)

  $ convert pic.jp2 pic.png
  convert: no decode delegate for this image format `JP2' @ error/constitute.c/ReadImage/501.
  convert: no images defined `pic.png' @ error/convert.c/ConvertImageCommand/3210.

  $ lsb_release -a
  No LSB modules are available.
  Distributor ID:	Ubuntu
  Description:	Ubuntu 15.04
  Release:	15.04
  Codename:	vivid

  $ uname -a
  Linux ubo1504 3.19.0-15-generic #15-Ubuntu SMP Thu Apr 16 23:32:37 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

  $ dpkg -l |grep imagemagick
  ii  imagemagick                         8:6.8.9.9-5                         amd64        image manipulation programs -- binaries
  ii  imagemagick-6.q16                   8:6.8.9.9-5                         amd64        image manipulation programs -- quantum depth Q16
  ii  imagemagick-common                  8:6.8.9.9-5                         all          image manipulation programs -- infrastructure

  Thanks for fixing this.

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