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1 file changed, 13 insertions
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| 1 | + | #!/bin/bash | |
| 2 | + | ||
| 3 | + | orig="$1_orig" | |
| 4 | + | ||
| 5 | + | cp $1 $orig | |
| 6 | + | ||
| 7 | + | magick $1 -level 0x70% -set option:distort:viewport '%wx%h+0+0' -colorspace CMYK -separate null: \( -size 2x2 xc: \( +clone -negate \) +append \( +clone -negate \) -append \) -virtual-pixel tile -filter gaussian \( +clone -distort SRT 60 \) +swap \( +clone -distort SRT 30 \) +swap \( +clone -distort SRT 45 \) +swap \( +clone -distort SRT 0 \) +swap +delete -compose Overlay -layers composite -set colorspace CMYK -combine -colorspace RGB "$1_ver1" | |
| 8 | + | ||
| 9 | + | magick "$1_ver1" -colorspace gray "$1_ver2" | |
| 10 | + | ||
| 11 | + | magick "$1_ver2" -ordered-dither h16x16o "$1" | |
| 12 | + | ||
| 13 | + | rm -rf "$1_ver1" "$1_ver2" | |
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