Low Quality Fingerprint Image Using Spatial and Frequency Domain Filter

The Biometrics indicators, Fingerprints are one of the highest levels of reliability and have been extensively used by forensic experts in criminal investigations. Anyway the performance of these techniques relies heavily on the quality of input fingerprint. But already existing STFT (short-time Fourier transform) analysis is not much perfect and best suit, to recover these unrecoverable regions of the fingerprint. In proposed a two-stage scheme to enhance the low-quality fingerprint image in both the spatial domain and the frequency domain based on the learning from the images...we use FFT (Fast Fourier Transform) algorithm to overcome the problem. Keyword: Fingerprint enhancement, learning, privacy in biometrics systems, two-Stage filtering.