test/fiasco-roundtrip.test


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#! /bin/sh
# This script tests: pnmtofiasco fiascotopnm
# Also requires: pnmpad pnmpsnr

# Pnmtofiasco: number of rows, cols in input file must be even
# Pnmpsnr output: 15.11 22.71 30.09
# TODO: As in jpeg-rountrip.test the threshold has been determined
# without much thought.

# Should print 3 1000.00 1000.00 1000.00

tmpdir=${tmpdir:-/tmp}
padded_ppm=${tmpdir}/padded.ppm

pnmpad --black --bottom 1 --left 1 testimg.ppm > ${padded_ppm} &&
pnmtofiasco --progress-meter 0 ${padded_ppm} | fiascotopnm | \
    pnmpsnr -machine - ${padded_ppm} | \
    awk '{printf("%3d %.2f %.2f %.2f", NF,
                  $1>14.0 ? 1000.00 : $1,
                  $2>21.0 ? 1000.00 : $2,
                  $3>29.0 ? 1000.00 : $3) }'

rm ${padded_ppm}