pnmdepth man page on BSDi

pnmdepth man page on BSDi

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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 max-
       val.   For  instance,  if  you want the color values to be
       five bits wide, use a maxval of 31, not 32.

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

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

			 12 January 1991			1

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