Face recognition is done naturally by humans. However, developing a computer algorithm to do the same thing is difficult. Assume for the moment we start with images, and we want to distinguish between images of different people. One class of methods presupposes the existence of certain features in the image, i.e. eyes, nose, mouth, hair, and an algorithm is devised to find and characterize these features. FACE recognition is an important research problem spanning numerous fields and disciplines. This because face recognition, in additional to having numerous practical applications such as bankcard identification, access control, Mug shots searching, security monitoring, and surveillance system, is a fundamental human behavior that is essential for effective communications and interactions among people.