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RDFPic, a w3c open source tool (on the topic of metadata and images)

From: Gregory J. Rosmaita <oedipus@hicom.net>
Date: Wed, 28 Apr 2010 20:44:56 +0100
To: public-html-a11y@w3.org
Message-Id: <20100428194139.M86192@hicom.net>
embedded metadata in images is one of the strategies i, as a blind 
netizen, support, for it would make possible a "central depository" 
which can be used to compare and/or overwrite the embedded metadata -- 
something akin to the database search one routinely performs for an 
audio CD; where multiple results are returned, one simply reviews each 
result, and picks that which best fills/meets one's needs at that 
particular time

so, submitted for the TF's information stroke consideration:

RDFPic is a tool developed by the W3C to embed an RDF description of a 
picture into the picture itself, as described by describing and 
retrieving photos using RDF and HTTP (http://www.w3.org/TR/photo-rdf/). 
The version in CVS supports XMP.

the tool and documentation can be obtained from: 


even if you don't care about the tool, nor know that much about RDF, 
i highly recommend reading:


the Abstract of which states:

This note describes a project for describing & retrieving (digitized) 
photos with (RDF) metadata. It describes the RDF schemas, a data-entry 
program for quickly entering metadata for large numbers of photos, a 
way to serve the photos and the metadata over HTTP, and some suggestions 
for search methods to retrieve photos based on their descriptions.

The data-entry program has been implemented in Java, a specific Jigsaw 
frame has been done to retrieve the RDF from the image through HTTP. The 
RDF schema uses the Dublin Core schema as well as additional schemas for 
technical data.

We already have a demo site and there is sample source code available for 

The system can be useful for collections of holiday snapshots as well as 
for more ambitious photo collections.
Received on Wednesday, 28 April 2010 19:45:24 UTC

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