#! /bin/bash
# This script tests: ppmdither
# Also requires: 

  alias ppmdither="${PBM_TESTPREFIX}ppmdither"
  shopt -s expand_aliases

ppmdither testimg.ppm | cksum
ppmdither -red 2 -green 2 -blue 2 testimg.ppm | cksum
ppmdither -dim 2 testimg.ppm | cksum