167 lines
6.8 KiB
Bash
Executable File
167 lines
6.8 KiB
Bash
Executable File
#! /bin/bash
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#########################################################
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# #
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# resizePictures.sh #
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# #
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# Author: Damien Broqua <contact@darkou.fr> #
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# Github: https://github.com/Dbroqua/resizePictures #
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# Licence: Apache License 2.0 #
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# #
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# Requirement: #
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# - imagemagick #
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# #
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# Usage: #
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# - create logo.png in ~/templates #
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# - run resizePictures.sh in wanted directory #
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# All jpg of the current folder wil be resized and #
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# stored in <currentfolder>/resized #
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# If cover.jpg found, file will be converted in other #
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# size and without logo (for my wordpress theme). #
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# #
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#########################################################
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# Your choices
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MAXWIDTH=800
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MAXHEIGHT=600
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COVERWIDTH=955
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COVERHEIGHT=450
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# Defining some generic variables
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COVERFILE="cover.jpg"
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COVERRATIO=`bc -l <<< "${COVERWIDTH}/${COVERHEIGHT}"`
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LOGO=~/template/logo.png
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IMAGERATIO=`bc -l <<< "${MAXWIDTH}/${MAXHEIGHT}"`
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DEST='resized'
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DESTJPG="${DEST}/JPG"
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DESTPNG="${DEST}/PNG"
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OPTIONS='-depth 8 -quality 90 -strip -interlace Plane'
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BORDERWIDTH=12
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BORDERTHINWIDTH=1
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BORDERTHINPLACEMENT=8
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# Defining some colors for log()
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RED="\E[31m"
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BLUE="\E[44m"
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GREEN="\E[92m"
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BOLD="\033[4m"
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RESET="\033[0m"
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# If destination does not exists, create it
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if [ ! -d ${DESTJPG} ] ; then
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mkdir -p ${DESTJPG}
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fi
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if [ ! -d ${DESTPNG} ] ; then
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mkdir -p ${DESTPNG}
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fi
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# For each files
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for image in {*.jpg,*.JPG} ; do
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if [ "${image}" != "*.JPG" ] && [ "${image}" != "*.jpg" ] ; then
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if [ ! -f "${image}" ] ; then
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echo -e "${RED}# ${image} is not a valid image file in ${PWD}${RESET}"
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continue
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fi
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if [ `exiftool -Orientation -n "${image}" | cut -d":" -f2|cut -d' ' -f2` -eq 6 ] ; then
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convert -auto-orient ${image} ${image}
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fi
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# Extract image dimensions
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WIDTH=`identify -format "%[fx:w]" "${image}"`
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HEIGHT=`identify -format "%[fx:h]" "${image}"`
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# Compute image ratio
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TMPIMAGERATIO=`bc -l <<< "${WIDTH}/${HEIGHT}"`
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# Define image size
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NEWWIDTH=${WIDTH}
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NEWHEIGHT=${HEIGHT}
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# Compute new image size based on image type
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if [ "${image}" == "${COVERFILE}" ] ; then
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# Compute temporary with or height to crop correctly image
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if (( $(echo "${COVERRATIO} >= ${TMPIMAGERATIO}" | bc -l) )) ; then
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NEWHEIGHT=$((${WIDTH}*${COVERHEIGHT}/${COVERWIDTH}))
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else
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NEWWIDTH=$((${HEIGHT}*${COVERWIDTH}/${COVERHEIGHT}))
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fi
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else
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# Compute temporary with or height to crop correctly image
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RATIO=`echo ${IMAGERATIO}'<'${TMPIMAGERATIO} | bc -l`
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if [ ${RATIO} -eq 1 ] ; then
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NEWWIDTH=${MAXWIDTH}
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NEWHEIGHT=`LC_NUMERIC="en_US.UTF-8" printf "%.0f" $(bc -l <<< "scale=1; ${HEIGHT}*${NEWWIDTH}/${WIDTH}")`
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else
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NEWHEIGHT=${MAXHEIGHT}
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NEWWIDTH=`LC_NUMERIC="en_US.UTF-8" printf "%.0f" $(bc -l <<< "scale=1; ${WIDTH}*${NEWHEIGHT}/${HEIGHT}")`
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fi
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fi
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# Convert cover
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if [ "${image}" == "${COVERFILE}" ] ; then
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echo -e "${GREEN}Converting cover file${RESET}"
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# Crop image with the good ratio
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convert -gravity Center -crop ${NEWWIDTH}x${NEWHEIGHT}+0+0 +repage "${image}" "/tmp/${image}"
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# Rezise cover and save it
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convert ${OPTIONS} -resize ${COVERWIDTH}x${COVERHEIGHT} "/tmp/${image}" "${DEST}/${image}"
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# Convert to webp also
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convert "${DEST}/${image}" -quality 50 "${DEST}/cover.webp"
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# Remove temporary file
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rm "/tmp/${image}"
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else
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echo -e "${RED}Converting image ${image}${RESET}"
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echo -e " -> ${BLUE}Create JPG version${RESET}"
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# Compute positions for black border
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BORDERUPPERLEFT=$((${BORDERWIDTH}/2)),$((${BORDERWIDTH}/2))
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BORDERLOWERLEFT=$((${BORDERWIDTH}/2)),$((${NEWHEIGHT} - ${BORDERWIDTH}/2))
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BORDERLOWERRIGHT=$((${NEWWIDTH} - ${BORDERWIDTH}/2)),$((${NEWHEIGHT} - ${BORDERWIDTH}/2))
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BORDERUPPERRIGHT=$((${NEWWIDTH} - ${BORDERWIDTH}/2)),$((${BORDERWIDTH}/2))
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# Compute positions for white border
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THINBORDERUPPERLEFT=${BORDERTHINPLACEMENT},${BORDERTHINPLACEMENT}
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THINBORDERLOWERLEFT=${BORDERTHINPLACEMENT},$((${NEWHEIGHT}-${BORDERTHINPLACEMENT} ))
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THINBORDERLOWERRIGHT=$((${NEWWIDTH}-${BORDERTHINPLACEMENT} )),$((${NEWHEIGHT}-${BORDERTHINPLACEMENT} ))
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THINBORDERUPPERRIGHT=$((${NEWWIDTH}-${BORDERTHINPLACEMENT} )),${BORDERTHINPLACEMENT}
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# resize and add border on image
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convert -resize ${NEWWIDTH}x${NEWHEIGHT} \
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"${image}" \
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-fill transparent -stroke black -strokewidth ${BORDERWIDTH} -draw "stroke-linecap square path 'M $((${BORDERWIDTH}/2)),0 L ${BORDERLOWERLEFT} L ${BORDERLOWERRIGHT} L ${BORDERUPPERRIGHT} L ${BORDERUPPERLEFT} Z'" \
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-fill transparent -stroke white -strokewidth ${BORDERTHINWIDTH} -draw "stroke-linecap square path 'M ${THINBORDERUPPERLEFT} L ${THINBORDERLOWERLEFT} L ${THINBORDERLOWERRIGHT} L ${THINBORDERUPPERRIGHT} L ${THINBORDERUPPERLEFT} Z'" \
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"${DESTJPG}/${image}"
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# Add logo on imagedow
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composite ${OPTIONS} -gravity SouthEast "${LOGO}" "${DESTJPG}/${image}" "${DESTJPG}/${image}"
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# Create same version but in PNG and with box shadow
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echo -e " -> ${BLUE}Create PNG version${RESET}"
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filename=$(basename -- "${image}")
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extension="${filename##*.}"
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filename="${filename%.*}"
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convert -resize ${NEWWIDTH}x${NEWHEIGHT} \
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"${image}" \
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-fill transparent -stroke black -strokewidth ${BORDERWIDTH} -draw "stroke-linecap square path 'M $((${BORDERWIDTH}/2)),0 L ${BORDERLOWERLEFT} L ${BORDERLOWERRIGHT} L ${BORDERUPPERRIGHT} L ${BORDERUPPERLEFT} Z'" \
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-fill transparent -stroke white -strokewidth ${BORDERTHINWIDTH} -draw "stroke-linecap square path 'M ${THINBORDERUPPERLEFT} L ${THINBORDERLOWERLEFT} L ${THINBORDERLOWERRIGHT} L ${THINBORDERUPPERRIGHT} L ${THINBORDERUPPERLEFT} Z'" \
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\( +clone -background black -shadow 80x3+2+2 \) \
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+swap -background transparent -layers merge +repage \
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"${DESTPNG}/${filename}.png"
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# Add logo on imagedow
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composite ${OPTIONS} -gravity SouthEast "${LOGO}" "${DESTPNG}/${filename}.png" "${DESTPNG}/${filename}.png"
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convert "${DESTPNG}/${filename}.png" -type TrueColorAlpha -quality 90 -format PNG32 -background transparent -depth 8 -strip "${DESTPNG}/${filename}.png"
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# Convert png file to webp file
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convert "${DESTPNG}/${filename}.png" -quality 50 "${DESTPNG}/${filename}.webp"
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fi
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fi
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done
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