dotfiles/default/bin/posterize-image.sh

84 lines
2.7 KiB
Bash
Executable file

#!/bin/bash
hex='d7afaf'
hex_alt='111317'
invert_flag=''
dithering='FloydSteinberg'
contrast='10'
morph_level='7'
threshold='50'
help() {
executable_path=$(basename "${0}")
printf "Usage: %s {FLAGS} [FILE]\n\
ARGUMENTS:\n\
-h display this help menu\n\
-c [20] contrast level\n\
-m [1] morph edge level\n\
-t [20] threshold \n\
-p [d7afaf] Primary hex color\n\
-s [111317] Secondary hex color\n\
-n Disable dithering\n\
FILE Full path to original image file\n" "${executable_path}"
exit 1
}
while getopts "hc:m:t:p:s:in" flag 2>/dev/null; do
case "${flag}" in
h)
help
;;
c)
contrast="${OPTARG}"
;;
m)
morph_level="${OPTARG}"
;;
t)
threshold="${OPTARG}"
;;
p)
hex="${OPTARG//#/}"
;;
s)
hex_alt="${OPTARG//#/}"
;;
i)
invert_flag='-negate'
;;
n)
dithering='None'
;;
*)
printf "[ERROR] Invalid flag: %s\n\n" "${flag}"
help
;;
esac
done
shift $((OPTIND - 1))
file="${1}"
if [[ -z ${file} || ! -f "${file}" ]]; then
printf '[ERROR] Please provide an image file!\n\n'
help
fi
hex="${hex//#/}"
hex_alt="${hex_alt//#/}"
printf "primary color: #%s\nsecondary color: #%s\nfile: %s\n" "${hex}" "${hex_alt}" "${file}"
new_filename=$(basename "${file}")
#convert -size 1x1 "xc:#${hex}" "xc:#${hex_alt}" -append txt:- | convert "${file}" ${invert_flag} -dither "${dithering}" -remap txt:- "${new_filename}-posterized-$(date +%Y-%m-%d_%H-%M-%S).jpg"
convert -size 1x1 "xc:#${hex}" "xc:#${hex_alt}" -append -colorspace rgb txt:- | convert "${file}" -set colorspace Gray ${invert_flag} -contrast-stretch "${contrast}%" -dither "${dithering}" -threshold "${threshold}%" -morphology EdgeIn "Diamond:${morph_level}" -remap txt:- "${new_filename}-posterized-$(date +%Y-%m-%d_%H-%M-%S).jpg"
#convert "${1}" -contrast-stretch 7% -set colorspace Gray -separate -average +level-colors "#111317","#d7afaf" "$(basename ${1})-recolored-$(date +%Y-%m-%d_%H-%M-%S).jpg"
#convert "${1}" -linear-stretch 90% -fill black -colorize 5% -set colorspace Gray -separate -average +level-colors "#111317","#d7afaf" "$(basename ${1})-recolored-$(date +%Y-%m-%d_%H-%M-%S).jpg"
#convert "${1}" -contrast-stretch 5% -fill black -colorize 5% -set colorspace Gray -separate -average +level-colors "#111317","#d7afaf" "$(basename ${1})-recolored-$(date +%Y-%m-%d_%H-%M-%S).jpg"
#convert "${1}" -contrast-stretch 25% -fill black -colorize 25% -set colorspace Gray -separate -average +level-colors "#111317","#d7afaf" "$(basename ${1})-recolored-$(date +%Y-%m-%d_%H-%M-%S).jpg"
#convert "${1}" -contrast-stretch 100% -fill black -colorize 25% -set colorspace Gray -separate -average +level-colors "#111317","#d7afaf" "$(basename ${1})-recolored-$(date +%Y-%m-%d_%H-%M-%S).jpg"