On 21 March 2012 19:32, Scott Phillips <email@example.com
> Has anyone been able to make the media-filter process JPEG 2000 image files?
> The current media-filter used by DSpace makes use of these libraries as part
> of the Java Standard Edition. By default Java SE comes with support for the
> basic image types: jpeg, gif, png, bit map, etc... However if you install
> the Java Advanced Imaging Library (JAI) locally then the appropriate plugins
> will be installed to support JPEG 2000 and TIFF. This shouldn't require any
> code changes on the part of DSPace, but would require a system administrator
> to locally install JAI.
> However, I've been banging my head on this problem for a few days now and
> I've never been able to get JAI to work. I've also not been able to find any
> open source projects that process JPEG 2000 images using JAI. So, has anyone
> been able to get this to work?
> As a follow up to that question, I've been looking at the open source
> projects which do process JPEG 2000 images. The big one that I've found is
> Djatoka, we're running it locally and it's a tomcat java web app that can
> process the JPEG images. They are not using JAI but instead using Kakadu,
> which is a commercial library written in C. They have embedded the binaries
> for all the major OS Platforms within the webapp and then load the
> appropriate libraries for the particular platform. Then with a java wrapper
> they are able to make calls out to the pre-build binaries. Kakadu is
> normally a commercial product, however they do offer "Non Commercial" and
> "Public Service" licenses which might work for DSpace.
> Assuming that the JAI library does not actually work, If A&M we're to
> develop a JPEG 2000 media filter that used the Kakadu would DSpace/Duraspace
> be open to managing the public service or non commercial license? I am
> assuming this would have to be a separate module that one could optionally
> include as a maven dependency which would provide this media-filter because
> the Kakadu license does restrict to "non commercial uses" and some people
> use DSpace for commercially.