RDFPic is a tool to embed an RDF description of a picture into the picture itself, as described by Describing and retrieving photos using RDF and HTTP.
The source code and documentation is available, as well as a ready-to-run jar file (java 1.2 or better is needed).
To run it, just type "java -jar rdfpic.jar"
You can also browse the readme directly, as well as the source code readme.
2000/08/16: Now able to view read-only images.
2000/08/17: Changed extension mechanism and DC:Subject field as a result. Width/Height/Size of image can be requested from RdfPicCore now.