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#! /bin/bash
# This script tests: ppmchange
# Also requires: pgmtopbm pnminvert ppmtopgm
alias ppmchange="${PBM_TESTPREFIX}ppmchange"
alias pgmtopbm="${PBM_BINPREFIX}pgmtopbm"
alias pnminvert="${PBM_BINPREFIX}pnminvert"
alias ppmtopgm="${PBM_BINPREFIX}ppmtopgm"
shopt -s expand_aliases
ppmchange black white white black testgrid.pbm | \
pnminvert | ppmtopgm | \
pgmtopbm -th -val=0.5 | cksum
ppmchange black white white black testgrid.pbm | \
ppmchange black white white black | \
ppmtopgm | pgmtopbm -th -val=0.5 | cksum
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