pamtopnm man page on Slackware

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pamtopnm(1)							   pamtopnm(1)

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

SYNOPSIS
       pamtopnm [-assume] [pnmfile]

       All options may be abbreviated to the shortest unique prefix.

DESCRIPTION
       Reads  a	 PAM  image as input.  Produces an equivalent PBM, PGM, or PPM
       (i.e. PNM) image, whichever is most appropriate, as output.

       pamtopnm assumes the PAM image represents the information required  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  also	 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(1), pgmtopbm(1),  pgmtoppm(1),	ppmtopgm(1),  pam(5),  pnm(5),
       pbm(5), pgm(5), ppm(5)

				03 August 2000			   pamtopnm(1)
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