pnmdepth man page on DigitalUNIX

pnmdepth man page on DigitalUNIX

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pnmdepth(1)							   pnmdepth(1)

NAME
       pnmdepth - change the maxval in a portable anymap

SYNOPSIS
       pnmdepth newmaxval [pnmfile]

DESCRIPTION
       Reads  a	 portable  anymap  as input.  Scales all the pixel values, and
       writes out the image with the new maxval.  Scaling the colors down to a
       smaller maxval will result in some loss of information.

       Be  careful  of	off-by-one  errors  when choosing the new maxval.  For
       instance, if you want the color values to be five bits wide, use a max‐
       val of 31, not 32.

SEE ALSO
       pnm(5), ppmquant(1), ppmdither(1)

AUTHOR
       Copyright (C) 1989, 1991 by Jef Poskanzer.

				12 January 1991			   pnmdepth(1)

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