Compressing pictures

Ed Clarke/10240000 clarke at acheron.uucp
Fri Aug 31 14:39:30 AEST 1990


>From article <sean.651965645 at s.ms.uky.edu>, by sean at ms.uky.edu (Sean Casey):
> If not, then perhaps GIF and other archivers need a ``standard'' (haha)
> interface to compression schemes. Some of the MSDOS terminal programs seem
> to provide a standard interface to file transfer protocols.

Yes, the gif standard requires LZW.  An alternative format that's
becoming somewhat popular is tif - tagged image format.  That code
contains several different compression formats and permits you to
add others.   

The author is sam at ucbvax.berkeley.edu; the mailing list may be reached
at tiff at ucbvax.berkeley.edu and tiff-request at ucbvax.berkeley.edu.  The
complete code for the library routines and xtiff is available on
ucbvax also ( for anonymous ftp ).

Tiff is supported by various word processors ( PageMaker ) although some
of the fancy compression routines are not supported.
-- 
               | "Pain, n.  An uncomfortable frame of mind that may have
Ed Clarke      |  a physical basis in something that is being done to the
acheron!clarke |  body, or may be purely mental, caused by the good fortune
               |  of another." - Ambrose Bierce



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