Palmprint verification is one of the emerging technologies in personal authentication systems. Biometric palmprint recognizes a person based on the principal lines, wrinkles and ridges on the surface of the palm. These line structures are stable and remain unchanged throughout the life of an individual. More importantly, no two palm prints from different individuals are the same, and normally people do not feel uneasy to have their palmprint images taken for testing. Therefore palmprint recognition offers promising future for medium-security access control system. An important issue in the existing palmprint recognition system is to extract palmprint features that can discriminate an individual from the other.