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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" |