1999.05.05 10:00 "tiled-tiff-jpeg reading", by John Cupitt

Hi all, I'm reading a tiled-tiff-jpeg coded image. It's coded with ttn2-type jpeg. I'd like to be able to read a compressed tile (without decompressing), and write that tile out as a JFIF. What's the best way to do this?

At the moment I'm decompressing tiles, then passing them back through the jpeg library again to make a JFIF, which is just daft. Many thanks for any help,

John

--
John Cupitt, john.cupitt@ng-london.org.uk, +44 (0)171 930 2108
VASARI Lab, The National Gallery, Trafalgar Square, London, WC2N 5DN