redhat man page for pamchannel

pamchannel(1)						      General Commands Manual						     pamchannel(1)

NAME
       pamchannel - extract channels from a PAM image

SYNOPSIS
       pamchannel [ -infile infile ] [channum] ...

       All options may be abbreviated to the shortest unique prefix.

DESCRIPTION
       Reads a PAM or PNM image as input.  Produces a PAM image as output, consisting of the indicated channels of the input.

       The  output  is the same dimensions as the input, except that the depth is the number of channum arguments you supply.  The tuple type is a
       null string.

OPTIONS
       -infile infile
	      This specifies the input file, which defaults to Standard Input.	You may specify - to select Standard Input explicitly.

	      This is a little unconventional for Netpbm programs, which usually have the input file specification as an argument.   For  pamchan-
	      nel, the arguments are channel numbers.

SEE ALSO
       pnm(5)

								  05 August 2000						     pamchannel(1)