openjpeg/CMYK-CIELAB-ESYCC-patch.md

####Library patch for CMYK, CIELAB, eSYCC images

1. opj_decompress.c

   calls the new functions defined in color.c; see 3.

2. color.h

   declares the new functions defined in color.c; see 3.

3. color.c

   defines the new functions:

   color_apply_conversion(opj_image_t)*:

   uses icc_profile_buf with icc_profile_len == 0. This allows entensions without changing the structures of opj_image_t: the structure change should have been done before but has not been done. There has not been introduced a color_space for CIELAB, etc. The first extension is with CIELab.

   color_cmyk_to_rgb(opj_image_t)*

   color_esycc_to_rgb(opj_image_t)*

4. jp2.c

   collects data for CIELab sets the color_space for EYCC and CMYK

5. CMakeLists.txt

   With THIRDPARTY the libraries are static. LINUX needs '-fPIC' or fails, if static libraries without '-fPIC' AND dynamic libraries are linked: LINUX reports an error.

Her Highness KDU shows CIELab and CMYK images.

OPENJPEG now can opj_decompress (and flviewer can show) CIELAB, CMYK and sEYCC images.

winfried