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#!/bin/sh
final_name="demo.png"
temp_name="demo.tmp.pgm"
clean() {
rm -v "$temp_name"
}
hash pnminvert || exit
hash convert || exit
trap clean exit
echo "::: Invoking fractal-gen through pnminvert for negative PGM image"
./fractal-gen -s 768 -i 75 | pnminvert > "$temp_name"
echo "::: Invoking ImageMagick to convert to PNG"
convert "$temp_name" "$final_name"
echo "::: Success. Final image is $final_name"
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