Fit pictures to digital photoframe

resize.sh

#! /usr/bin/env bash

# Fit pictures to digital photoframe

#Samsung SPF-107H
#================
#
#Resolution: 1024x600
#
#Fit height:
#-----------
#mogrify -resize x600 <imagefile>
#
#Fit width:
#----------
#mogrify -resize 1024 <imagefile>
#
#Fit resolution (keep aspect ration und choose, what fits best):
#--------------
#mogrify -resize 1024x600 <imagefile>
#
#Fixed resolution (destroy aspect ration):
#-----------------
#mogrify -resize 1024x600! <imagefile>

#Set internal field separator
IFS=$(echo -en "\n\b")

#Screen dimensions
SCREENWIDTH=1024
SCREENHEIGHT=600

for file in `find . -type f -iname "*.png"`;
do
	echo "Converting $file to $file.jpg"	
	convert $file $file.jpg
	rm $file
done

for file in `find . -type f -iname "*.jpg"`;
do
	echo "Resizing $file"
	# Remove Metadata orientation and rotate image
	# since photoframe doesn't respect this setting
	EXIFORIENT=$(identify -format "%[exif:*orientation*]" $file | head -n 1 | cut -d"=" -f2)
	if [[ $EXIFORIENT -gt 4 ]] ;
	then
		#Remove all meta data
		mogrify -strip $file

		if [[ $EXIFORIENT -eq 6 ]];
		then
			#RightTop -> rotate right
			mogrify -rotate 90 $file
		fi
		if [[ $EXIFORIENT -eq 8 ]];
		then
			#LeftBottom -> rotate left
			mogrify -rotate -90 $file
		fi		
	fi	

	IMAGEDIM=$(identify -format "%g" $file | cut -d"+" -f1)
	WIDTH=`echo $IMAGEDIM | cut -d"x" -f1`
	HEIGHT=`echo $IMAGEDIM | cut -d"x" -f2`

	echo " Original size: ${WIDTH}x${HEIGHT}"

	if [[ $WIDTH -gt $HEIGHT ]] ; 
	then
		echo " Resizing $IMAGEDIM to width 1024"
		mogrify -resize $SCREENWIDTH $file 
		IMAGEDIM=`identify -verbose $file | grep "Geometry" | cut -d" " -f4 | cut -d"+" -f1`
		HEIGHT=`echo $IMAGEDIM | cut -d"x" -f2`
		XOFFSET=0
		YOFFSET=$[ ($HEIGHT - $SCREENHEIGHT) / 2 ]
		if [[ ${YOFFSET} -lt 0 ]] ;
		then
			YOFFSET=$[ ${YOFFSET} * (-1) ]
		fi
		echo " Cropping to ${SCREENWIDTH}x${SCREENHEIGHT}";
		mogrify -crop ${SCREENWIDTH}x${SCREENHEIGHT}+${XOFFSET}+${YOFFSET} $file
	else
		echo " Resizing $IMAGEDIM to height 600"
		mogrify -resize x${SCREENHEIGHT} $file
	fi
done