jpylyzer 2 release candidate out now

The first release candidate of jpylyzer 2.0 is now available for community testing.

Jpylyzer is an open source validator and feature extractor for JP2 images, and part of the OPF reference toolset.

This release contains some major new features including:

  • Validation of raw codestreams
  • An option to generate NISO MIX output (code contributed by Thomas Ledoux of Bibliothèque nationale de France)
  • Support for additional codestream marker segments

It also introduces some changes to the output format. Since these changes may cause backward compatibility issues in existing workflows, there is also an option to generate output in the previous (jpylyzer 1.x) format.

We have also made a number of continuous integration improvements.

Take a look at the draft release notes for further details on the changes.

Feedback welcome

We invite you to download and test the release candidate. If you experience a problem please report it on the jpylyzer issue tracker on GitHub or contact us.

We will continue internal testing of the release candidate and there may be a few small changes before the public production release.

Our thanks go to all contributors and the OPF Product Board for their ongoing input and feedback.

About jpylyzer

Jpylyzer is an open source validator and feature extractor for JP2 images licensed under the GNU Lesser General Public License. JP2 is the still image format that is defined by Part 1 of the JPEG 2000 image compression standard (ISO/IEC 15444-1).

The software is maintained by Johan van der Knijff at the Koninklijke Bibliotheek, and the Open Preservation Foundation provides hosting and support through software quality testing and delivery, and open source best practice.

jpylyzer is open source, free to download, to use and to modify. However, it is not free to host, maintain, support or develop. If you use jpylyzer, please consider supporting its development by becoming an OPF member or making a donation towards development.


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