#jpylyzer — Public Fediverse posts

New bugfix release of #Jpylyzer is out now! #jpeg2000

Version 2.2.1 fixes a check on the number of tileparts, which got broken at some point.

It also fixes an "unknown error" that was reported in case of a missing or malformed Bits Per Component Box.

More details + download links here:

https://jpylyzer.openpreservation.org/2024/04/08/jpylyzer-2-2-1

The first stable release of #Jpylyzer 2.2 is out now!

Main new feature is the support for High Throughput #JPEG2000 (#HTJ2K), and its JPH file format.

Also lots of other fixes and improvements, as well as some API and output enhancements:

https://jpylyzer.openpreservation.org/2024/01/23/jpylyzer-2-2-release

In other news, the production version of #jpylyzer 2.2 will finally be out this Wednesday. For those who can't wait, I (more or less by accident!) already uploaded it to the Python package index today #jpeg2000 #HTJ2K

Just a reminder for who missed this earlier: a few weeks ago we published a release candidate for #jpylyzer 2.2, which is available for testing.

This release adds support of High Throughput #JPEG2000 #HTJ2K and its associated file formats, various codestream validation/parsing improvements, some output enhancements (including reporting of warnings), and an improved Python API.

Details here:

https://jpylyzer.openpreservation.org/2023/11/07/jpylyzer-2-2-release-candidate

Please let us know any issues, so we can fix them for the stable release!

The release candidate for #Jpylyzer 2.2 is out now! This is a truly action-packed release. Among other things, it adds support for High Throughput #JPEG2000 #HTJ2K. More info here:

https://jpylyzer.openpreservation.org/2023/11/07/jpylyzer-2-2-release-candidate

@general

For the adventurous #Jpylyzer users out there, I published a (strictly unofficial!) beta of version 2.2.0, which includes support for High Throughput #JPEG2000 #HTJ2K.

Install using:

pip install --pre jpylyzer

To validate a JPH file:

jpylyzer --format jph oj-ht-byte.jph > out-jph.xml

To validate a HTJ2K codestream:

jpylyzer --format jhc oj-ht-byte_causal.jhc > out-jhc.xml

Draft docs are here:

https://github.com/openpreserve/jpylyzer/blob/2-2-dev/doc/jpylyzerUserManual.md#user-content-fnref-14-7410ff13fdb411aef53ee8e1065145c4

An "official" release candidate will follow later.

Making some good progress on adding High Throughput #JPEG2000 #HTJ2K to #Jpylyzer. Validation of the #JPH file format is pretty much done. Still need to add support for parsing/validating HTJ2K codestreams. If all goes well this should make it to a release some time this autumn.

At a first glance both the codestream syntax and the #JPH file format are relatively minor variations on #JP2, so I think it would be good to add support to #Jpylyzer at some point. Won't make any promises when I'll get round to this, but I created this issue as a reminder:

https://github.com/openpreserve/jpylyzer/issues/197

#OPFOAG Thomas Ledoux advocates for a standard #schematron edition tool to enforce institutional policies on #JHOVE, #veraPDF & #jpylyzer outputs.