#! /bin/sh
# This script tests: pnmcolormap
# Also requires: pnmremap pnmpsnr

tmpdir=${tmpdir:-/tmp}
map=${tmpdir}/map.ppm

echo "Test.  Should print 'match' eighteen times."

# Threshold values (tgtN=xx.xx) were produced by calculating
# the S/N ratio when the original image is compared against a
# reference image with fewer colors than the target output image.

# colors in following tests / colors for calculating threshold
# 256 / 224
# 128 /  96  -splitspread
# 128 / 108  other
#  64 /  44  -center (default)
#  64 /  48  -splitspread
#  64 /  56  other

# -center
echo pnmcolormap  256
tgt1=37.19;  tgt2=37.86;  tgt3=37.77
pnmcolormap 256 testimg.ppm > ${map}
pnmremap -mapfile=${map} testimg.ppm |\
pnmpsnr -target1=${tgt1} -target2=${tgt2} -target3=${tgt3} testimg.ppm -
rm ${map}

echo pnmcolormap  128
tgt1=34.46;  tgt2=35.61;  tgt3=34.97
pnmcolormap 128 testimg.ppm > ${map}
pnmremap -mapfile=${map} testimg.ppm |\
pnmpsnr -target1=${tgt1} -target2=${tgt2} -target3=${tgt3} testimg.ppm -
rm ${map}

echo pnmcolormap  64
tgt1=30.30;  tgt2=33.10;  tgt3=31.74
pnmcolormap 64 testimg.ppm > ${map}
pnmremap -mapfile=${map} testimg.ppm |\
pnmpsnr -target1=${tgt1} -target2=${tgt2} -target3=${tgt3} testimg.ppm -
rm ${map}

echo pnmcolormap -meancolor 256
tgt1=38.36;  tgt2=38.63;  tgt3=38.95
pnmcolormap -meancolor 256 testimg.ppm > ${map}
pnmremap -mapfile=${map} testimg.ppm |\
pnmpsnr -target1=${tgt1} -target2=${tgt2} -target3=${tgt3} testimg.ppm -
rm ${map}

echo pnmcolormap -meancolor 128
tgt1=35.86;  tgt2=37.17;  tgt3=36.65
pnmcolormap -meancolor 128 testimg.ppm > ${map}
pnmremap -mapfile=${map} testimg.ppm |\
pnmpsnr -target1=${tgt1} -target2=${tgt2} -target3=${tgt3} testimg.ppm -
rm ${map}

echo pnmcolormap -meancolor 64
tgt1=33.64;  tgt2=34.92;  tgt3=34.44
pnmcolormap -meancolor 64 testimg.ppm > ${map}
pnmremap -mapfile=${map} testimg.ppm |\
pnmpsnr -target1=${tgt1} -target2=${tgt2} -target3=${tgt3} testimg.ppm -
rm ${map}

echo pnmcolormap -meanpixel 256
tgt1=38.40;  tgt2=38.65;  tgt3=38.90
pnmcolormap -meanpixel 256 testimg.ppm > ${map}
pnmremap -mapfile=${map} testimg.ppm |\
pnmpsnr -target1=${tgt1} -target2=${tgt2} -target3=${tgt3} testimg.ppm -
rm ${map}

echo pnmcolormap -meanpixel 128
tgt1=35.75;  tgt2=37.13;  tgt3=36.69
pnmcolormap -meanpixel 128 testimg.ppm > ${map}
pnmremap -mapfile=${map} testimg.ppm |\
pnmpsnr -target1=${tgt1} -target2=${tgt2} -target3=${tgt3} testimg.ppm -
rm ${map}

echo pnmcolormap -meanpixel 64
tgt1=33.75;  tgt2=34.79;  tgt3=34.53
pnmcolormap -meanpixel 64 testimg.ppm > ${map}
pnmremap -mapfile=${map} testimg.ppm |\
pnmpsnr -target1=${tgt1} -target2=${tgt2} -target3=${tgt3} testimg.ppm -
rm ${map}

echo pnmcolormap -spreadluminosity 256
tgt1=36.82;  tgt2=36.87;  tgt3=37.25
pnmcolormap -spreadluminosity 256 testimg.ppm > ${map}
pnmremap -mapfile=${map} testimg.ppm |\
pnmpsnr -target1=${tgt1} -target2=${tgt2} -target3=${tgt3} testimg.ppm -
rm ${map}

echo pnmcolormap -spreadluminosity 128
tgt1=34.61;  tgt2=33.40;  tgt3=34.66
pnmcolormap -spreadluminosity 128 testimg.ppm > ${map}
pnmremap -mapfile=${map} testimg.ppm |\
pnmpsnr -target1=${tgt1} -target2=${tgt2} -target3=${tgt3} testimg.ppm -
rm ${map}

echo pnmcolormap -spreadluminosity 64
tgt1=32.35;  tgt2=30.23;  tgt3=32.35
pnmcolormap -spreadluminosity 64 testimg.ppm > ${map}
pnmremap -mapfile=${map} testimg.ppm |\
pnmpsnr -target1=${tgt1} -target2=${tgt2} -target3=${tgt3} testimg.ppm -
rm ${map}

echo pnmcolormap -splitcolorct 256
tgt1=37.55;  tgt2=38.37;  tgt3=38.04
pnmcolormap -splitcolorct 256 testimg.ppm > ${map}
pnmremap -mapfile=${map} testimg.ppm |\
pnmpsnr -target1=${tgt1} -target2=${tgt2} -target3=${tgt3} testimg.ppm -
rm ${map}

echo pnmcolormap -splitcolorct 128
tgt1=34.84;  tgt2=35.72;  tgt3=34.64
pnmcolormap -splitcolorct 128 testimg.ppm > ${map}
pnmremap -mapfile=${map} testimg.ppm |\
pnmpsnr -target1=${tgt1} -target2=${tgt2} -target3=${tgt3} testimg.ppm -
rm ${map}

echo pnmcolormap -splitcolorct 64
tgt1=31.56;  tgt2=33.74;  tgt3=32.93
pnmcolormap -splitcolorct 64 testimg.ppm > ${map}
pnmremap -mapfile=${map} testimg.ppm |\
pnmpsnr -target1=${tgt1} -target2=${tgt2} -target3=${tgt3} testimg.ppm -
rm ${map}

echo pnmcolormap -splitspread 256
tgt1=35.18;  tgt2=37.26;  tgt3=36.17
pnmcolormap -splitspread 256 testimg.ppm > ${map}
pnmremap -mapfile=${map} testimg.ppm |\
pnmpsnr -target1=${tgt1} -target2=${tgt2} -target3=${tgt3} testimg.ppm -
rm ${map}

echo pnmcolormap -splitspread 128
tgt1=33.18;  tgt2=35.58;  tgt3=33.71
pnmcolormap -splitspread 128 testimg.ppm > ${map}
pnmremap -mapfile=${map} testimg.ppm |\
pnmpsnr -target1=${tgt1} -target2=${tgt2} -target3=${tgt3} testimg.ppm -
rm ${map}

echo pnmcolormap -splitspread 64
tgt1=31.27;  tgt2=33.03;  tgt3=30.97
pnmcolormap -splitspread 64 testimg.ppm > ${map}
pnmremap -mapfile=${map} testimg.ppm |\
pnmpsnr -target1=${tgt1} -target2=${tgt2} -target3=${tgt3} testimg.ppm -
rm ${map}