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# mogrify -resize 3840x2160 *.jpg
# jpeg to jpg
find . -type f -iregex ".*\.jpe?g" -exec mogrify -format jpg {} \;
# resize everything to max 4k
# TODO: also scales up... but shouldn't!
find . -type f -regextype posix-extended -iregex ".*\.(png|jpe?g|gif|webp)" -exec mogrify -resize 3840x2160 {} \;
find . -type f -regextype posix-extended -iregex ".*\.(png|jpe?g|gif|webp)" -exec mogrify -resize 1920x1080 {} \;
find . -type f -regextype posix-extended -iregex ".*\.(png|jpe?g|gif|webp)" -exec mogrify -resize 1200x675 {} \;
# optimize jpg
find . -type f -iregex ".*\.jpe?g" -exec jpegoptim --strip-all {} \;
find . -type f -iname "*.jpg" -exec jpegoptim --strip-all {} \;
# optimize png
find . -type f -iname "*.png" -exec optipng -o5 {} \;
# convert to webp
find . -type f -regextype posix-extended -iregex ".*\.(png|jpe?g)" -exec convert {} -quality 90 -define webp:lossless=true $(echo {} | cut -d . -f 1).webp \;
# add border to image
convert $img.png -background none -bordercolor none -border 20 $img.png
# square image for favicon
# order of things is important
convert $img -background none -thumbnail 64x64^ -gravity center -extent ${longestside}x${x} $img
# crop image to size - from center
# https://www.imagemagick.org/discourse-server/viewtopic.php?t=13793
convert $img -resize 1200x900^ -gravity center -crop 1200x900+0+0 $img
# svg to png
convert -scale ${x}x${y} -extent 110%x110% -gravity center -background transparent $svg $png
# https://stackoverflow.com/a/12690135
convert -density 1200 -resize 200x -background none $svg $png
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