Special Section on Trends in Pattern Recognition Algorithms, Architectures, and Devices Biometric Recognition

Correlation-based watermarking method for image authentication applications

[+] Author Affiliations
Farid Ahmed

The Catholic University of America, Department of EECS, Washington, D.C. 20064

Ira S. Moskowitz

Naval Research Laboratory, Center for High Assurance Computer Systems—5540, Washington, D.C. 20375

Opt. Eng. 43(8), 1833-1838 (Aug 01, 2004). doi:10.1117/1.1763589
History: Received Aug. 28, 2003; Revised Jan. 19, 2004; Accepted Feb. 17, 2004; Online August 06, 2004
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We propose a correlation-based digital watermarking technique for robust image pattern authentication. We hide a phase-based signature of the image back into its Fourier magnitude spectrum in the embedding stage. The detector computes the Fourier transform of the watermarked image and extracts the embedded signature. Authentication performance is measured by a correlation test of the extracted signature and the signature computed from the watermarked image. The quality of the watermarked image is obtained from the peak signal-to-noise ratio metric. We also furnish simulation results to show the robustness of our approach to typical image processing as found in JPEG compression. © 2004 Society of Photo-Optical Instrumentation Engineers.

© 2004 Society of Photo-Optical Instrumentation Engineers

Citation

Farid Ahmed and Ira S. Moskowitz
"Correlation-based watermarking method for image authentication applications", Opt. Eng. 43(8), 1833-1838 (Aug 01, 2004). ; http://dx.doi.org/10.1117/1.1763589


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