osx man page for pgmhist

pgmhist(1)                                                    General Commands Manual                                                   pgmhist(1)

NAME
       pgmhist - print a histogram of the values in a portable graymap

SYNOPSIS
       pgmhist [pgmfile]

DESCRIPTION
       Reads a portable graymap as input.  Prints a histogram of the gray values.

SEE ALSO
       pgmnorm(1), pgm(5), ppmhist(1)

AUTHOR
       Copyright (C) 1989 by Jef Poskanzer.

                                                                 28 February 1989                                                       pgmhist(1)