Beyond Linux® From Scratch (systemd Edition) - Version 11.3

Chapter 10. Graphics and Font Libraries

OpenJPEG-2.5.0

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 11.3 platform.

Package Information

OpenJPEG Dependencies

Required

CMake-3.25.2

Optional

Little CMS-2.14, libpng-1.6.39, libtiff-4.5.0, and Doxygen-1.9.6 (to build the API documentation)

User Notes: https://wiki.linuxfromscratch.org/blfs/wiki/openjpeg2

Installation of OpenJPEG

Install OpenJPEG by running the following commands: 

mkdir -v build &&
cd       build &&

cmake -DCMAKE_BUILD_TYPE=Release \
      -DCMAKE_INSTALL_PREFIX=/usr \
      -DBUILD_STATIC_LIBS=OFF .. &&
make

This package does not come with a test suite.

Now, as the root user: 

make install &&

pushd ../doc &&
  for man in man/man?/* ; do
      install -v -D -m 644 $man /usr/share/$man
  done
popd

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