JPEG Header Information

[Wil O'Mullane]

We have a lot of JPEG images about which lack anykind of infomration in them.
For the SDSS images we are thinking of adding infomration to a comment block.
Perhaps this would be good in other instances also.

Currently we are thinking of adding something like 
Author="SDSS Collaboration "
Info="http://skyservice.jhu.edu/develop/jpeghead/index.html"
TITLE="SDSS Image "
CRPIX1=744.5
CRPIX2=1024.5
CRTYPE1=RA--TAN
CRTYPE2=DEC--TAN
CRVAL1=179.948240689264
CRVAL2=0.101381194295879
CDVAL1=-3.8008997158114E-08
CDVAL2=0.000109924630958157
CDVAL3=0.000110062460780114
CDVAL4=-4.78845056498477E-08
NAXES=2
NAXES1=2048
NAXES2=1489
EPOCH=J2000

or basically the fits keywords. 

Slightly more info at http://skyservice/develop/jpeghead/index.html

wil