# magick composit -gravity center overlay.jpg hdr.jpg 20080101.jpg
# NorthWest	Top left corner
# North	Center	top
# NorthEast	Top right corner
# West		Center left
# Center	Center of the background image
# East		Center right
# SouthWest	Bottom left corner
# South		Center bottom
# SouthEast	Bottom right corner

# magick stonecold.jpg hair1.png -geometry '300x300+135-21' -composite stonecoldhair13.jpg
# magick 20081031.jpg hdr.png -geometry '300x300+135-21' -composite 20081031_300x300+135-21.jpg

magick composite -gravity NorthWest hdr.jpg 20081031.jpg 20081031_hdr.jpg

imgs=`ls ????????.jpg`
j=0;

for img in $imgs; do
	let j=j+1
	imgbak=`echo "$img" | sed -e "s:.jpg:_orig.jpg:"`
	imghdr=`echo "$img" | sed -e "s:.jpg:_hdr.jpg:"`
	echo "j=$j img=$img imghdr=$imghdr imgbak=$imgbak"

	echo "cp $img $imgbak"
	cp $img $imgbak

	echo "magick composite -gravity NorthWest hdr.jpg $img $imghdr"
	magick composite -gravity NorthWest hdr.jpg $img $imghdr
	
	echo "mv $imghdr $img"
	mv $imghdr $img
	echo " "

	done