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#! /bin/bash
# This script tests: pnmquantall
# Also requires: ppmtorgb3 pgmhist
ppmtorgb3 testimg.ppm
pnmquantall 20 testimg.red testimg.grn testimg.blu
for i in testimg.red testimg.grn testimg.blu
do
cksum $i
done
# Should print 1
pnmcat testimg.red testimg.grn testimg.blu -tb | \
pgmhist -m | awk '$2>0 {s++}; END { print (s<=20) }'
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