29 lines
1.1 KiB
Bash
Executable file
29 lines
1.1 KiB
Bash
Executable file
#! /usr/bin/env nix-shell
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#! nix-shell -i bash -p bash imagemagick
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INPUT="$1"
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OUTPUT="$2"
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export OW="$3"
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export OH="$4"
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W="$5"
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if [ "$OW" == "" ]; then OW=0; fi
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if [ "$OH" == "" ]; then OH=0; fi
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OPTIONS="-resize $W -set depth 8 -set colorspace RGB"
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#initial conversion
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convert $OPTIONS "$INPUT" txt:- | awk -v ow="$OW" -v oh="$OH" 'match($0, /^([0-9]*),([0-9]*):.*#([0-9A-Fa-f]{6,8}) +r/, arr ){ print "PX " arr[1]+ow " " arr[2]+oh " " arr[3] }' > "${OUTPUT}.tmp"
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echo optimizing >&2
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# edge detection
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convert $OPTIONS "$INPUT" -canny 0x1+10%+30% txt:- | awk -v ow="$OW" -v oh="$OH" 'match($0, /^([0-9]*),([0-9]*):.*#000000/, arr ){ print "PX " arr[1]+ow " " arr[2]+oh " " }' > /tmp/px6_optimize
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grep -Ff /tmp/px6_optimize "${OUTPUT}.tmp" >> "${OUTPUT}.tmp2"
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cat "${OUTPUT}.tmp" > "${OUTPUT}.tmp3"
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cat "${OUTPUT}.tmp2" >> "${OUTPUT}.tmp3"
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cat "${OUTPUT}.tmp2" >> "${OUTPUT}.tmp3"
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cat "${OUTPUT}.tmp2" >> "${OUTPUT}.tmp3"
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cat "${OUTPUT}.tmp2" >> "${OUTPUT}.tmp3"
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cat "${OUTPUT}.tmp3" | grep -ve " [a-fA-F0-9]\{6\}00" | shuf > /tmp/px6_optimize
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mv /tmp/px6_optimize "$OUTPUT"
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rm "${OUTPUT}.tmp" "${OUTPUT}.tmp2" "${OUTPUT}.tmp3"
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