Photo Metadata editing using RDF4J - Thanks to the RDF4J community

[tedca77]

I have been using RDF4J to edit the metadata within the XMP section of JPEG photos. XMP is the latest standard for metadata storage . The core set of metadata is defined in the IPTC standard but many suppliers will add additional information into XMP. XMP is serialised as XML within the XMP metadata section, but it is clearly much more practical to edit as RDF rather than XML. RDF4J is used to read and update the XMP as an RDF4J model, which is then converted back to XML for storage.

I have also used RDF4J to generate an RDF Repository for a collection of photos using NativeStore to provide fast searching of metadata and performance results have been very encouraging compared to other Photo Managers/Editors.

The open source software I have developed is at http://www.photo-2-graph.com

Note that the RDF Repository can be queried using Photo-2-Graph itself and also with RDF Console, RDF4J Workbench and third party tools such as G.V().

RDF4J has been a very useful library to do this work, so thanks for a great library and hope some of you find this useful.

Ted Carroll