Beyond Linux® From Scratch (System V Edition) - Version r11.3-489

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.

[Note]

Note

Development versions of BLFS may not build or run some packages properly if dependencies have been updated since the most recent stable versions of the book.

Package Information

OpenJPEG Dependencies

Required

CMake-3.26.3

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