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Palmprint recognition has been in the focus of biometric research over the last ten years. Identifying a person or authenticating a person has been most vital process and mandatory in several real time applications for security reasons. For example logging into a computer system, accessing an ATM machine, entering a room, etc. Are some of the real time applications require authentication of people. Simple and cost effective authentication systems are working based on password, pin number, etc. For authenticating people. Significant places or critical applications require biometric authentication where the authentication failure rate is very less and easy to use. Also, forging the biometric system is highly complicated. Palmprint is one of the biometric used in authenticating people. Palmprint recognition has been studied more then fifteen years. There are several palmprint authentication systems have been developed by various scientists.