OGC approves GMLJP2
OGC just released the specification for GML in JPEG2000 for Geographic Imagery Encoding. The specification provides you to include GML tags in your JPEG file. This can be used for georeferencing images, map annotations and so on.
I just did not go completely through the document, but seems to be a good approach. I am now looking forward to some products. Perhaps a WMS with GMLJP2 support.
Here is the news posting of the OGC.
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14. February 2006 um 13:20
Are those files still standard JPEGs which can be viewed with any ordinary image viewer? I understand that I need special software to read the GML stuff hidden in the JPEG - but apart from that, can I view the image with standard software?
By the way: Is there a difference between JPEG and JPEG 2000?
14. February 2006 um 13:51
Ok, as far as I understood, JPEG2000 is a new file standard which provides sophisticated mechanisms for compression. Another advantage of the format is, that it supports embedded metadata. This fact is utilized in the GMLJP2 standard. So the XML is directly embedded in the file. Softwaresupport seems to be rare until now. But cou can view it with photoshop and also for instance with the JAI API. No browser support yet.
The standard will be interesting for search engines like images.google.com (combined with google earth perhaps) or for digital foto cameras, which just embed a GPS footprint into the photo you just made. There are also other applications to think of (map annotations, sematically enriched WMS response).