94 lines
3 KiB
Bash
94 lines
3 KiB
Bash
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#! /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=520
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COVERHEIGHT=245
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# Defining some generic variables
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COVERFILE="cover.jpg"
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COVERRATIO=$((${COVERWIDTH}/${COVERHEIGHT}))
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LOGO=~/template/logo.png
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DEST='resized'
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OPTIONS='-depth 8 -quality 80 -strip -interlace Plane'
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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 ${DEST} ] ; then
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mkdir ${DEST}
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fi
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# For each files
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for image in *.jpg ; do
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if [ ! -f ${image} ] ; then
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echo -e "${RED}# No file found in ${PWD}${RESET}"
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continue
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fi
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# Convert covert
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if [ "${image}" == "${COVERFILE}" ] ; then
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echo -e "${GREEN}Converting cover file${RESET}"
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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]" ${image}`
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# Compute image ratio
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IMAGERATIO=$((${WIDTH}/${HEIGHT}))
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# Define temporary image size (used for crop)
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TMPWIDTH=${WIDTH}
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TMPHEIGHT=${HEIGHT}
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# Compute temporary with or height to crop correctly image
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if [ "${COVERRATIO}" -gt "${IMAGERATIO}" ] ; then
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TMPHEIGHT=$((${WIDTH}*${COVERHEIGHT}/${COVERWIDTH}))
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else
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TMPWIDTH=$((${HEIGHT}*${COVERWIDTH}/${COVERHEIGHT}))
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fi
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# Crop image with the good ratio
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convert -gravity Center -crop ${TMPWIDTH}x${TMPHEIGHT}+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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# 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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convert -resize ${MAXWIDTH}x${MAXHEIGHT} ${image} ${DEST}/${image}
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composite ${OPTIONS} -gravity SouthEast ${LOGO} ${DEST}/${image} ${DEST}/${image}
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fi
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done
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