pamtopnm

   Updated: 03 August 2000
   Table Of Contents

NAME

   pamtopnm - convert PAM image to PBM, PGM, or PPM

SYNOPSIS

   pamtopnm [-assume] [pnmfile]

   Minimum  unique  abbreviation of option is acceptable. You may
use double
   hypens instead of single hyphen to denote options. You may use
white space
   in  place  of  the equals sign to separate an option name from
its value.

DESCRIPTION

   This program is part of Netpbm.

   pamtopnm reads a PAM image as input and produces an equivalent
PBM, PGM, or
   PPM	(i.e.  PNM) image, whichever is most appropriate, as out-
put.

   pamtopnm assumes the PAM image represents the information  re-
quired for a
   PBM,	 PGM,  or PPM image if its tuple type is "BLACKANDWHITE",
"GRAYSCALE", or
   "RGB" and its depth and maxval are appropriate. If this is not
the case,
   pamtopnm fails.

   However,  you can override the tuple type requirement with the
-assume
   option.

   As with any Netpbm program that reads PAM images, pamtopnm al-
so reads PNM
   images as if they were PAM. In that case, pamtopnm's functions
reduces to
   simply copying the input to the output. But this can be useful
in a program
   that doesn't know whether its input is PAM or PNM but needs to
feed it to a
   program that only recognizes PNM.

OPTIONS

   -assume
	  When you specify -assume, you tell  pamtopnm	that  you
personally vouch
	  for  the  fact that the tuples contain the same data as
belongs in the
	  channels of a PBM, PGM, or PPM  file.	 The  depth  must
still conform,
	  though, so to truly force a conversion, you may have to
run the input
	  through pamchannel first. But be careful with	 -assume.
When you
	  -assume, you make an -ass of u and me.



SEE ALSO

   pbmtopgm,  pgmtopbm,	 pgmtoppm,  ppmtopgm, pam, pnm, pbm, pgm,
ppm
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Table Of Contents

     * NAME
     * SYNOPSIS
     * DESCRIPTION
     * OPTIONS
     * SEE ALSO

UNIX/Linux commands referenced on this page:

1. convert
2. as
3. pamchannel
4. make
5. pbmtopgm
6. pgmtoppm
7. ppmtopgm