Recent developments in the area of image mining have shown the way for incredible growth in extensively large and detailed image databases. The images which are available in these databases, if checked, can endow with valuable information to the human users. As one of the most successful applications of image analysis and understanding, face recognition has recently gained important attention particularly throughout the past many years. Though tracking and recognizing face objects is a routine

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... ask, building such a system is still an active research. Among several proposed face recognition schemes, shape based approaches are possibly the most promising ones. This paper provides an overview of various classification and retrieval methods that were proposed earlier in literature. Also, this paper provides a marginal summary for future research and enhancements in face detection.