[Debian-med-packaging] Bug#675448: dcmtk: dcmdjpeg does not set (0028, 2114) LossyImageCompressionMethod when decompressing lossy compressed DICOM file

[Mathieu Malaterre]

Package: dcmtk
Version: 3.6.0-10
Severity: important


dcmdjpeg does not currently properly support lossy compressed DICOM file. It decompress them as lossless file, lossing the lossy information from the original file. Eg:

$ dcmdjpeg DCMTK_JPEGExt_12Bits.dcm lossless.dcm
$ dcmdump lossless.dcm
(0028,0002) US 1                                        #   2, 1 SamplesPerPixel
(0028,0004) CS [MONOCHROME2]                            #  12, 1 PhotometricInterpretation
(0028,0010) US 64                                       #   2, 1 Rows
(0028,0011) US 160                                      #   2, 1 Columns
(0028,0034) IS [5\2]                                    #   4, 2 PixelAspectRatio
(0028,0100) US 16                                       #   2, 1 BitsAllocated
(0028,0101) US 12                                       #   2, 1 BitsStored
(0028,0102) US 11                                       #   2, 1 HighBit
(0028,0103) US 0                                        #   2, 1 PixelRepresentation


Where DCMTK_JPEGExt_12Bits.dcm can be found at:
http://gdcm.git.sourceforge.net/git/gitweb.cgi?p=gdcm/gdcmData;a=history;f=DCMTK_JPEGExt_12Bits.dcm;h=a38d4be8214fc72c76f4a6051f314e466ffbdcc5;hb=HEAD

-- System Information:
Debian Release: 6.0.5
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable'), (200, 'testing'), (100, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.2.0-0.bpo.2-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages dcmtk depends on:
ii  adduser            3.112+nmu2            add and remove users and groups
ii  libc6              2.11.3-3              Embedded GNU C Library: Shared lib
ii  libcharls1         1.0-2                 Implementation of the JPEG-LS stan
ii  libdcmtk2          3.6.0-10              OFFIS DICOM toolkit runtime librar
ii  libgcc1            1:4.4.5-8             GCC support library
ii  libjpeg62          6b1-1                 The Independent JPEG Group's JPEG 
ii  libpng12-0         1.2.44-1+squeeze4     PNG library - runtime
ii  libssl0.9.8        0.9.8o-4squeeze13     SSL shared libraries
ii  libstdc++6         4.4.5-8               The GNU Standard C++ Library v3
ii  libtiff4           3.9.4-5+squeeze4      Tag Image File Format (TIFF) libra
ii  libwrap0           7.6.q-19              Wietse Venema's TCP wrappers libra
ii  libxml2            2.7.8.dfsg-2+squeeze4 GNOME XML library
ii  zlib1g             1:1.2.3.4.dfsg-3      compression library - runtime

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