You may be thinking of JPEG 2000, possibly?
See http://www.jpeg.org/ for further information. The JPEG 2000 standard
refers to "a rich metadata set for photographic imagery."
Or of EXIF files (EXchangeable Image File format)? which record settings etc
of a camera when a digital photograph is taken and enable the (JPEG or TIF -
don't know whether it goes with other image formats) image to be read by
viewers and PCs.
http://www.exif.org/
Useful little files, EXIFs - would record all the image info I don't have
time or can't be bothered to record when I take a photo (if I had a digital
camera), except for who's taken the pic and what the pic is of (still good
old hard work of having to describe an image in words to make it effectively
& efficiently retrievable from a database - though CBIR could provide an
alternative, but that's a whole other issue). EXIF's record info like date &
time photo was taken, aperture setting & speed.
As for metadata standards to describe images...so they can be retrieved...it
depends on the sector in which it is being used, what the medium of the
original analogue image was (if there was one). There is a lot more work
needs to be done.
Have a look at the Institute for Image Data Research for some further
information on image retrieval. (Yes, my name is probably tucked away on the
site - I worked there for a year, though have worked elsewhere for the last
2 years (dealing with issues of image retrieval in a more hands-on way).
http://www.unn.ac.uk/iidr/
Janet E. Davis
Edmund Lee wrote:
> Morning folks,
>
> A question. Can anyone direct me to a metadata standard focused on the
needs
> of digital image retrieval / discovery (as opposed to technical storage
> management metadata? I am aware of the TASI paper
> http://www.tasi.ac.uk/advice/delivering/metadata.html#mt3
> but an initial look suggests this is more a discussion of the issues than
a
> recommendation. Or is that as far as it is possible to go at the moment?
>
> Also I have come across reference to metadata being embedded in the image
> file itself, but am not sure of the details, formats, possibilities.
>
> All comments welcome,
>
> Edmund Lee
> English Heritage Data Standards Unit
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