A Comparative Study on Fingerprint Protection Using Watermarking Techniques
D. Mathivadhani · Global Journal of Computer Science and Technology · 2010
Protection of biometric data is gaining interest and digital watermarking techniques are used to protect the biometric data from either accidental or intentional attacks. Among the various biometrics, fingerprints are more famous in the authentication area, as they are unique to each person and are mainly used for the establishment of instant personal identity. However, they are susceptible to accidental and intentional attacks, when transmitted over network. Thus, a protective scheme is needed which will preserve fidelity and prevent alterations. This paper considers two techniques that protects of fingerprint biometric data using digital watermarking techniques. Both the techniques discussed are based on Discrete Wavelet Transformation (DWT). From the experimental results, it can be concluded that both techniques provide adequate security to the fingerprint data without degrading visual quality. Further, the verification performance after dewatermarking is also analyzed.