Invalid decompression for Part-2 J2K

[gcode-importer]

Originally reported on Google Code with ID 222

The attached J2K codestream is not decoded properly by OpenJPEG 1.5.1 or trunk.

Reported by malaterre on 2013-05-03 08:43:07

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- _Attachment: [lena512_rot90.j2k](https://storage.googleapis.com/google-code-attachments/openjpeg/issue-222/comment-0/lena512_rot90.j2k)_

[gcode-importer]

Hello, Mathieu,

I had to change the code in j2k.c of the TRUNK.

NAME(lena512_rot90.j2k)
LENG(141603)

ENTER read_jp2c
[0]marker(0xff4f)
    soc len(0)
[2]marker(0xff51)
    siz len(41)
    capabilities(32768)
    x(0 : 512) y(1048065 : 1048577)
    xt(0 : 512) yt(1048065 : 512)
    nr_components(1)
TEST len(41)
    capabilities(32768)
    x(0 : 512) y(1048065 : 1048577)
    xt(0 : 512) yt(1048065 : 512)
    nr_components(1)
      component[0]signed(0) prec(8) hsep(1) vsep(1)

[45]marker(0xff52)

    read_cod

             max_len 12
          prog_order 0
           nr_layers 1
multi_comp_transform 0

       entropy_coder 0
      use_sop_marker 0
      use_eph_marker 0

      num_resolutions 6
     code_block_width 4
    code_block_height 4
     code_block_style 0
       transformation 1 (5-3 reversible)

The resulting image looks fuzzy. KDU creates a clean TIF file.

winfried

Reported by szukw000 on 2013-08-11 09:06:06

[gcode-importer]

The codestream is Part-2 compliant. OpenJPEG aims at providing a Part-1 compliant codec.
Changing priority for now.

Reported by malaterre on 2014-02-25 12:42:08

• Labels added: Priority-Low
• Labels removed: Priority-Medium

[ValZapod]

Sample is here https://bugs.debian.org/826742 it should be decoded (by rather old kakadu)

[malaterre]

Duplicate of https://github.com/uclouvain/openjpeg/issues/794

[ValZapod]

It is not a duplicate at all. We still want to support Part 2. ;) There just an error is nicely returned.