Rork> I want a filter that translates some easy image file format to
Rork> JPEG. "easy" means almost anything besides JPEG, since I can
Rork> make it or get to it with netpbm filters. I want the filter to
Rork> be free, and not require seeing the image. "ppmtojpeg" would
The Independent JPEG Group make available the cjpeg and djpeg utilities
under a BSD-style license.
cjpeg can do PPM-to-JPEG, as well as a few other formats. This is a
pure filter - it doesn't contain any display code. Quality,
optimisation, greyscale and loads of other options can be specified on
the command line.
I believe the master distribution site is ftp.uu.net, under
comp.unix.programmer FAQ: see <URL: http://www.erlenstar.demon.co.uk/unix/>
or <URL: http://www.whitefang.com/unix/>