convert-raw-to-jpg.sh

#!/bin/bash

# requires hombrew
# brew install imagemagick

if [ -x "$(which convert)" ]; then
    function convert-raw-to-jpg() {
        local quality=${1:-80};
        local max_dim=${2:-2650};
        local source_files=${3:-\*.CR2};
        echo "Usage: convert-raw-to-jpg [quality=80] [max-dimension-px=2560] [source=\*.CR2]";
        echo "Converting all ${source_files} to JPEG (${quality} quality, ${max_dim}px max) to output/...";
        mkdir -p output 2> /dev/null;
        find . -type f -iname "${source_files}" -print0 | \
            xargs -0 -n 1 -P 8 -I {} convert -verbose -units PixelsPerInch {} \
            -colorspace sRGB -resize ${max_dim}x${max_dim} -set filename:new '%t-%wx%h' \
            -density 72 -format JPG -quality ${quality} 'output/%[filename:new].jpg';
        echo 'Done.';

    }
fi;