[OpenJPEG] MJ2 binaries revisited in branch15
szuk...@arcor.de
1. wrap_j2k_in_mj2 input/from_[0:n-1].j2k FROM_J2K.mj2
======================================================
enumcs: either ENUMCS_SRGB or ENUMCS_GRAY.
1.1. mj2_to_frames FROM_J2K.mj2 FROM_J2K.yuv
===========================================
The input file should be refused because the enumcs is not SYCC
but SRGB or GRAY.
Currently BMP files are created using all three components.
1.2. extract_j2k_from_mj2 FROM_J2K.mj2 output/FROM_J2K_[0:n-1]
=========================================================
OK: enumcs SYCC is correct.
2. frames_to_mj2 -i FROM_YUV.yuv -o FROM_YUV.mj2
====================================================
enumcs: ENUMCS_SYCC.
2.1. mj2_to_frames FROM_YUV.mj2 FROM_YUV.yuv
===========================================
OK: enumcs SYCC is correct.
2.2. extract_j2k_from_mj2 FROM_YUV.mj2 output/FROM_YUV
==================================================
The input file should be refused because the enumcs is SYCC
instead of SRGB or GRAY.
Currently J2K files are created.
Using one of these J2K files, e.g. FROM_YUV_00000.j2k:
j2k_to_image -i FROM_YUV_00000.j2k -o FROM_YUV_00000.bmp
The BMP file uses component[0] only.
j2k_to_image -i FROM_YUV_00000.j2k -o FROM_YUV_00000.pnm
For each component a PNM file is created.
j2k_to_image -i FROM_YUV_00000.j2k -o FROM_YUV_00000.png
Refused.
j2k_to_image -i FROM_YUV_00000.j2k -o FROM_YUV_00000.tga
Refused.
j2k_to_image -i FROM_YUV_00000.j2k -o FROM_YUV_00000.tif
Refused.
The attached patch corrects the code in the mj2 directory.
As the values for ENUMCS_GRAY and ENUMCS_SRGB are wrong, I have
put the three values into openjpeg.h: one file, one change.
The correct values are:
#define ENUMCS_SRGB 16
#define ENUMCS_GRAY 17
#define ENUMCS_SYCC 18
winfried
Mathieu Malaterre
http://code.google.com/p/openjpeg/source/detail?r=1640
Thanks
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--
Mathieu