how to train an image and store in matlab for 3d face recognition with their expressions

with code plz

Answer 1

[Image Analyst]

This is way beyond the scope of the code that is provided here. You might browse the published literature here: http://www.visionbib.com/bibliography/contentspeople.html#Face%20Recognition,%20Detection,%20Tracking,%20Gesture%20Recognition,%20Fingerprints,%20Biometrics to see how it's done and write your orn code, or perhaps you can buy code from someone who has built such a system already.