B=0
B2=0
TOT=0
for i in *.png
	do
	ANSWER=`sed -e 's/image_\([a-z]*\)_.*$/\1/' <<<$i`
	# tessedit_char_whitelist only works if -oem 0
	A=`tesseract $i stdout  --psm 13 --dpi 70 -c tessedit_char_whitelist=abcdefghijklmnopqrstuvwxyz | sed -e 's/[^a-z]//g'`
	cp "$i" ../tmp.png
	A2=`tesseract "../tmp.png" stdout --dpi 70  --psm 13 -c tessedit_char_whitelist=abcdefghijklmnopqrstuvwxyz| tr '[:upper:]' '[:lower:]' | sed -e 's/[^a-z]//g'`
	echo -n "$ANSWER	$A	$A2"
	if [ "${A// /}" == "$ANSWER" ]
		then B=$(($B+1))
		echo -n '	' SUCCESS-o
	fi
	if [ "${A2// /}" == "$ANSWER" ]
		then B2=$(($B2+1))
		echo -n '	' SUCCESS-p
	fi
	echo
	TOT=$(($TOT+1))
done

echo "Success $B (preprocess $B2) (out of $TOT)" $(($B*100/$TOT)) "%" " " $(($B2*100/$TOT)) %