Image Comparison

I need some motion detection functionality.As far as I can see, this will mean comparing successive frame-grabs (i.e. still images) obtained with JMF.Wondering if anyone can direct me to any published algorithms or useful literature regarding image comparison.Thanks.
[295 byte] By [miciulia] at [2007-9-28 2:48:54]
# 1
You can ignore this. I found on Google quickly enough.
miciulia at 2007-7-7 22:21:54 > top of Java-index,Other Topics,Algorithms...