Beyond Linux® From Scratch (systemd Edition) - Version r12.2-1349

Chapter 10. Graphics and Font Libraries

OpenJPEG-2.5.3

Introduction to OpenJPEG

OpenJPEG is an open-source implementation of the JPEG-2000 standard. OpenJPEG fully respects the JPEG-2000 specifications and can compress/decompress lossless 16-bit images.

This package is known to build and work properly using an LFS 12.3 platform.

Package Information

OpenJPEG Dependencies

Required

CMake-3.31.5

Optional

git-2.48.1 (for tests), Little CMS-2.17, libpng-1.6.46, libtiff-4.7.0, and Doxygen-1.13.2 (to build the API documentation)

Installation of OpenJPEG

Install OpenJPEG by running the following commands: 

mkdir -v build &&
cd       build &&

cmake -D CMAKE_BUILD_TYPE=Release  \
      -D CMAKE_INSTALL_PREFIX=/usr \
      -D BUILD_STATIC_LIBS=OFF ..  &&
make

If you wish to run the tests, some additional files are required. Download these files and run the tests using the following commands, but note that 8 tests are known to fail: 

git clone https://github.com/uclouvain/openjpeg-data.git --depth 1 &&
OPJ_DATA_ROOT=$PWD/openjpeg-data cmake -D BUILD_TESTING=ON ..      &&
make                                                               &&
make test

Now, as the root user: 

make install &&
cp -rv ../doc/man -T /usr/share/man

Contents

Installed Programs: opj_compress, opj_decompress, and opj_dump
Installed Libraries: libopenjp2.so
Installed Directories: /usr/include/openjpeg-2.5 and /usr/lib/openjpeg-2.5

Short Descriptions

opj_compress

converts various image formats to the jpeg2000 format

opj_decompress

converts jpeg2000 images to other image types

opj_dump

reads in a jpeg2000 image and dumps the contents to stdout