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clarityflowers/dither

Last active January 28, 2021 09:44
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Make a little dithered image
Raw
dither
#!/bin/bash
USAGE="${0##*/} <origin> <dest> <size> <num-colors> [<filter-color> <filter-amount>]"
if [[ $1 == --help ]]; then
echo $USAGE
elif [[ -n $5 ]]; then
magick $1 -dither Floyd-Steinberg -resize $3 -colors $4 \
\( +clone -fill $5 -colorize $6 \) -compose dissolve \
-define compose:args=25 -colors $4 -composite \
$2 && open -a Preview $2
else
magick $1 -dither Floyd-Steinberg -resize $3 -colors $4 \
$2 && open -a Preview $2
fi
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