Experts in facial recognition are not a neccessity, unlike in fingerprint and iris recognition where trained personnel are required to interpret the data captured. A face can be recognized by anyone. However, not everyone can recognize fingerprint or iris easily.
Face recognition is a non-intrusiveway to recognize a person. Throughout the last few decades, face has been the centre of interest for many researchers. There is very high motivation on working to automate and to optimize existing face recognition techniques.
A face recognition system (FRS) is the automation of recognizing a human face. The recognition process is done by comparing the subject to be recognized to the digital images stored in the repository/database.