pnmdepth(1)pnmdepth(1)NAMEpnmdepth - change the maxval in a portable anymap
SYNOPSISpnmdepth newmaxval [pnmfile]
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 ALSOpnm(5), ppmquant(1), ppmdither(1)AUTHOR
Copyright (C) 1989, 1991 by Jef Poskanzer.
12 January 1991 pnmdepth(1)