# OPENJPEG Library and Applications
+## What is OpenJPEG ?
+
+OpenJPEG is an open-source JPEG 2000 codec written in C language. It has been developed in order to promote the use of [JPEG 2000](http://www.jpeg.org/jpeg2000), a still-image compression standard from the Joint Photographic Experts Group ([JPEG](http://www.jpeg.org)). Since April 2015, it is officially recognized by ISO/IEC and ITU-T as a [JPEG 2000 Reference Software](http://www.itu.int/rec/T-REC-T.804-201504-I!Amd2).
+
+## Who can use the code ?
+[![badge-license]][link-license]
+
+Anyone. As the OpenJPEG code is released under the [BSD 2-clause "Simplified" License][link-license], anyone can use or modify the code, even for commercial applications. The only restriction is to retain the copyright in the sources or in the binaries documentation. Of course, if you modified the code in a way that might be of interest for other users, you are encouraged to share it (through a [github pull request](https://github.com/uclouvain/openjpeg/pulls) or by filling an [issue](https://github.com/uclouvain/openjpeg/issues)) but this is not a requirement.
+
+## How to install and use OpenJPEG ?
+API Documentation needs a major refactoring. Meanwhile, you can check [installation](https://github.com/uclouvain/openjpeg/wiki/Installation) instructions and [codec documentation](https://github.com/uclouvain/openjpeg/wiki/DocJ2KCodec).
+
+## Current Status
+[![badge-build]][link-build]
+
+[![badge-msvc-build]][link-msvc-build]
+
+[![badge-coverity]][link-coverity]
+
+## Who are the developers ?
+
+The library is developed and maintained by the Image and Signal Processing Group ([ISPGroup](http://sites.uclouvain.be/ispgroup/)), in the Université catholique de Louvain ([UCL](http://www.uclouvain.be/en-index.html), with the support of the [CNES](https://cnes.fr/), the [CS](http://www.c-s.fr/) company and the [intoPIX](http://www.intopix.com) company. The JPWL module has been developed by the Digital Signal Processing Lab ([DSPLab](http://dsplab.diei.unipg.it/)) of the University of Perugia, Italy ([UNIPG](http://www.unipg.it/)).
+
## Details on folders hierarchy
* src
* java: java jni to use openjpeg in a java program
* thirdparty: thirdparty libraries used by some applications. These libraries will be built only if there are not found on the system. Note that libopenjpeg itself does not have any dependency.
* doc: doxygen documentation setup file and man pages
-* tests: configuration files and utilities for the openjpeg test suite. All test images are located in 'http://openjpeg.googlecode.com/svn/data' folder.
+* tests: configuration files and utilities for the openjpeg test suite. All test images are located in [openjpeg-data](https://github.com/uclouvain/openjpeg-data) repository.
* cmake: cmake related files
+* scripts: scripts for developers
-See [LICENSE](https://github.com/uclouvain/openjpeg/blob/master/LICENSE) for license and copyright information.
+See [LICENSE][link-license] for license and copyright information.
-See [INSTALL](https://github.com/uclouvain/openjpeg/blob/master/INSTALL) for installation procedures.
+See [INSTALL](https://github.com/uclouvain/openjpeg/blob/master/INSTALL.md) for installation procedures.
-See [NEWS](https://github.com/uclouvain/openjpeg/blob/master/NEWS) for user visible changes in successive releases.
+See [NEWS](https://github.com/uclouvain/openjpeg/blob/master/NEWS.md) for user visible changes in successive releases.
## API/ABI
+An API/ABI timeline is automatically updated [here][link-api-timeline].
+
OpenJPEG strives to provide a stable API/ABI for your applications. As such it
only exposes a limited subset of its functions. It uses a mechanism of
exporting/hiding functions. If you are unsure which functions you can use in
your applications, you should compile OpenJPEG using something similar to gcc:
-`fvisibility=hidden` compilation flag.
+`-fvisibility=hidden` compilation flag.
See also: http://gcc.gnu.org/wiki/Visibility
On windows, MSVC directly supports export/hiding function and as such the only
API available is the one supported by OpenJPEG.
+
+[comment-license]: https://img.shields.io/github/license/uclouvain/openjpeg.svg "https://img.shields.io/badge/license-BSD--2--Clause-blue.svg"
+[badge-license]: https://img.shields.io/badge/license-BSD--2--Clause-blue.svg "BSD 2-clause \"Simplified\" License"
+[link-license]: https://github.com/uclouvain/openjpeg/blob/master/LICENSE "BSD 2-clause \"Simplified\" License"
+[badge-build]: https://travis-ci.org/uclouvain/openjpeg.svg?branch=master "Build Status"
+[link-build]: https://travis-ci.org/uclouvain/openjpeg "Build Status"
+[badge-msvc-build]: https://ci.appveyor.com/api/projects/status/github/uclouvain/openjpeg?branch=master&svg=true "Windows Build Status"
+[link-msvc-build]: https://ci.appveyor.com/project/detonin/openjpeg/branch/master "Windows Build Status"
+[badge-coverity]: https://scan.coverity.com/projects/6383/badge.svg "Coverity Scan Build Status"
+[link-coverity]: https://scan.coverity.com/projects/uclouvain-openjpeg "Coverity Scan Build Status"
+[link-api-timeline]: http://www.openjpeg.org/abi-check/timeline/openjpeg "OpenJPEG API/ABI timeline"
projects / openjpeg.git / blobdiff