Based on the intrinsic physiological property of fingerprint

the technique in fingerprint identification is used to judge individual status by way of computer which is a branch of pattern recognition technique.Fingerprint enhancement technique enhances ridge line character effectively

insuring property pick-up algorithm enough robustness to the quality of fingerprint image

establishing reliable base for fingerprint detail pick-up and matching.According as Gabor filter will not only utilize the information of orientation

but also information of interval of fingerprint textures in a local region of fingerprint images

a method of fingerprint enhancement is introduced based on 2-D Gabor filter

a method reckoning orientation of ridge line and frequency of ridge line using Soble arithmetic operators is designed.Results are presented on fingerprint database Fingdb.