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 usu-
    ally have the input file specification as an argument. For pam-
    channel, the arguments are channel numbers.

SEE ALSO
    pnm(5)