home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Business Shareware
/
Business Shareware.iso
/
start
/
gfxapps
/
pbmpl91d
/
pbmplus
/
man
/
pnmdepth.man
< prev
next >
Wrap
Text File
|
1993-01-08
|
920b
|
67 lines
pnmdepth(1) Unix Programmer's Manual 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 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