Try using long exposure on raspicam

Author: benjie

enhance2.sh

@@ -0,0 +1,24 @@
+#!/bin/sh
+echo "say cheese" | festival --tts
+sleep 5;
+FILENAME="shot-`date +%F.%H-%M-%S`.jpg"
+FILE="/tmp/$FILENAME"
+echo "Ca-cheek" | festival --tts &
+/opt/vc/bin/raspistill --nopreview -t 8 --ISO 800 --exposure verylong --imxfx denoise -w 1280 -h 960 -o $FILE.1.jpg
+if [ "$?" != "0" ]; then exit 1; fi
+curl -o $FILE.2.jpg http://10.0.0.64:8080/latest.jpg
+if [ "$?" == "0" ]; then
+        convert $FILE.2.jpg -resize 1280x960 $FILE.3.jpg
+        convert $FILE.1.jpg $FILE.3.jpg +append $FILE
+else
+        mv $FILE.1.jpg $FILE
+fi
+rm $FILE.1.jpg
+rm $FILE.2.jpg
+rm $FILE.3.jpg
+#Set the white level to the mean level plus one standard deviation
+/usr/bin/mogrify -level 0%,$(bc <<< "$(identify -verbose $FILE | grep -A 7 'Image statistics' | tr \) \( | grep 'mean' | cut -d \( -f 2) * 100 + $(identify -verbose $FILE | grep -A 7 'Image statistics' | tr \) \( | grep 'standard deviation' | cut -d \( -f 2) * 100")% $FILE
+/usr/bin/scp -p $FILE www.somakeit.org.uk:www
+if [ "$?" != "0" ]; then exit 1; fi
+echo "Enhanced: http://irccat.somakeit.org.uk/$FILENAME"
+rm $FILE