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

${PBM_TESTPREFIX}ppmbrighten -v 100 testimg.ppm | cksum
${PBM_TESTPREFIX}ppmbrighten -v 100 -normalize testimg.ppm | cksum
${PBM_TESTPREFIX}ppmbrighten -s 100 -v -50 testimg.ppm | cksum