4469a98cd7
The TGA file writer used by j2k_to_image writes a wrong field to the header for alpha-less images. To reproduce: 1. Take any 24-bit j2k image with no alpha. 2. Convert it to TGA with j2k_to_image -i <image>.j2k -o <image>.tga 3. Open <image>.tga with Gimp. When opened, the image will have a wrong alpha channel, because Gimp uses a certain field in the header to determine if the image has alpha. That field is saved wrongly by j2k_to_image for alpha-less images. Per the TGA specification, Gimp is correct in this case. |
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.. | ||
CMakeLists.txt | ||
Makefile.am | ||
README | ||
convert.c | ||
convert.h | ||
image_to_j2k.c | ||
index.c | ||
index.h | ||
j2k_dump.c | ||
j2k_to_image.c | ||
windirent.h |
README
Simple codec compilation ------------------------ Once you've built the library, you might want to test it with a basic codec. To do this, go to the codec directory and either use the provided Makefile or use one of the following commands to build an encoder and decoder respectively: gcc index.c convert.c image_to_j2k.c -o image_to_j2k -lopenjpeg -I ../libopenjpeg/ -lm -ltiff gcc index.c convert.c j2k_to_image.c -o j2k_to_image -lopenjpeg -I ../libopenjpeg/ -lm -ltiff You should add '-L..' to those lines if you did not use the 'install' target when building the library.