conv_my_image.sh

#!/bin/sh
# script for me
usage() {
    echo "usage: $(basename $0) [options...]" >&2
}

help() {
    echo >&2
    usage
    echo >&2
    echo "Convert and insert credit to images"
    echo "  -i / --iphone       iPhone"
    echo "  -x / --xperia       Xperia X (F5121)"
    echo "  -c / --casio        Casio compact digital camera"
    echo "  -e / --essential    Essential Phone"
    echo "  -o / --opencamera   OpenCamera (Essential Phone)"
    echo "  -f / --font         Font name"
    echo "  -h / --help         show this help."
}

TYPE="NONE"
FONT="Noto Sans"

lopts="iphone,xperia,casio,essential,help,font:,opencamera"
sopts="ixcehof:"

if ! options=`getopt -o $sopts -l $lopts -- "$@"`; then
    usage
    exit 1
fi

eval set -- "$options"
while true; do
    case "$1" in
        -i|--iphone) TYPE="IPHONE" ; shift 1 ;;
	-x|--xperia) TYPE="XPERIA" ; shift 1 ;;
	-c|--casio)  TYPE="CASIO"  ; shift 1 ;;
	-e|--essential) TYPE="ESSENTIAL" ; shift 1 ;;
	-o|--opencamera) TYPE="OPENCAMERA" ; shift 1 ;;
	-f|--font) FONT="$2" ; shift 2 ;;
        -h|--help) help ; exit 0 ;;
        *) break ;;
    esac
done

case "$TYPE" in
    "IPHONE")
	# for iPhone
	fontsize="70"
	annotate="+1300+10"
	;;
    "XPERIA")
	# for Xperia
	fontsize="80"
	annotate="+1600+10"
	# for Xperia 23MP
	#fontsize=100
	#annotate="+2000+10"
	;;
    "CASIO")
	# for casio camera
	fontsize="60"
	annotate="+1450+10"
	;;
    "ESSENTIAL")
	fontsize=80
	annotate="+1700+10"
	;;
    "OPENCAMERA")
	# for Open Camera on Essential Phone
	fontsize=60
	annotate="+1000+10"
	;;
    *)
	usage
	;;
esac

width=1024
gravity="South"
label='by @ten_forward'
color=ForestGreen

mkdir -p conv
for f in $(ls *.JPG *.jpg)
do
    echo "* Now convert: $f"
    convert \
	-gravity $gravity \
	-font "$FONT" \
	-pointsize $fontsize \
	-fill $color \
	-annotate $annotate "$label" \
	-resize ${width}x \
	$f conv/$f
done