A print-and-scan resilient digital watermark for card authentication

Author

Ho, Anthony T S ; Shu, Feng

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore

Volume

2

fYear

2003

fDate

15-18 Dec. 2003

Firstpage

1149

Abstract

In this paper, a secure card authentication system based on digital watermarking is presented. A sequence of identification characters, e.g. owner´s ID number is inserted into the photograph, thus a linkage between the photograph and its owner can be established. The print-and-scan process is successfully overcome by our transform coefficient polarity based watermarking algorithm. The retrieval algorithm is capable of verifying whether the inspected card is authorized. We apply our algorithm for 105 photographs and the success rate achieved is better than 96%.

Keywords

Hadamard transforms; identification technology; image coding; message authentication; watermarking; Hadamard transform coefficient polarity; identification character; owner ID number; photograph; print-and-scan resilient digital watermarking; retrieval algorithm; secure card authentication system; Authentication; Copyright protection; Couplings; Data security; Degradation; Information security; Licenses; Pixel; Printing; Watermarking;

fLanguage

English

Publisher

ieee

Conference_Titel

Information, Communications and Signal Processing, 2003 and Fourth Pacific Rim Conference on Multimedia. Proceedings of the 2003 Joint Conference of the Fourth International Conference on

Print_ISBN

0-7803-8185-8

Type

conf

DOI

10.1109/ICICS.2003.1292640

Filename

1292640