Adaptive DWT and SVD domain digital image watermarking for fingerprint security

Abstract

In the proposed system, an adaptive DWT-SVD domain digital watermarking technique for fingerprint security is developed. Fingerprints are unique biometric data mainly used for personal identification and authentication purpose. So they have to be protected by any accidental or intentional attacks. Here we have been proposed a watermarking scheme where the minutiae points are extracted from fingerprint images and an equivalent binary watermark is generated which is itself embedded into original host fingerprint. In addition to improve the robustness of watermark an Arnold transform is performed on it before embedding is done. Different experiments are performed to test the effectiveness and robustness of proposed algorithm and the experimental results shows that the scheme is effective and robust against various image processing attacks. Results shows higher PSNR and NC values under general image processing.