Dear Princy,

You can look the below mentioned link. May be it help you.

http://in.mathworks.com/discovery/face-recognition.html

Regards,

Vani

Dear Ms. Bai,

you may find interesting and helpful  the video/tutorial of the following link:

http://www.mathworks.com/videos/face-recognition-with-matlab-98076.html

also some guidlines (including some code) can be found  here:

http://www.cs.ait.ac.th/~mdailey/matlab/

Have a look at MatDeepRep which is a Matlab plugin, built on top of Caffe framework, capable of learning deep representations for image classification using the BVLC caffe matlab interface (matcaffe) & various pretrained .caffemodel binaries.

Try using it for images containing a face.

https://github.com/GKalliatakis/MatDeepRep