Translator Disclaimer
17 February 2006 A hypothesis testing approach for achieving semi-fragility in multimedia authentication
Author Affiliations +
Proceedings Volume 6072, Security, Steganography, and Watermarking of Multimedia Contents VIII; 607220 (2006) https://doi.org/10.1117/12.643502
Event: Electronic Imaging 2006, 2006, San Jose, California, United States
Abstract
This paper studies the problem of achieving watermark semi-fragility in multimedia authentication through a composite hypothesis testing approach. The embedding of a semi-fragile watermark serves to distinguish legitimate distortions caused by signal processing manipulations from illegitimate ones caused by malicious tampering. This leads us to consider authentication verification as a composite hypothesis testing problem with the watermark as a priori information. Based on the hypothesis testing model, we investigate the best embedding strategy which assists the watermark verifier to make correct decisions. Our results show that the quantization-based watermarking method is more appropriate than the spread spectrum method to achieve the best tradeoff between two error probabilities. This observation is confirmed by a case study of additive Gaussian white noise channel with Gaussian source using two figures of merit: relative entropy of the two hypothesis distributions and the receiver operating characteristic. Finally, we focus on certain common signal processing distortions such as JPEG compression and image filtering, and investigate the best test statistic and optimal decision regions to distinguish legitimate and illegitimate distortions. The results of the paper show that our approach provides insights for authentication watermarking and allows better control of semi-fragility in specific applications.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Chuhong Fei, Deepa Kundur, and Raymond Kwong "A hypothesis testing approach for achieving semi-fragility in multimedia authentication", Proc. SPIE 6072, Security, Steganography, and Watermarking of Multimedia Contents VIII, 607220 (17 February 2006); https://doi.org/10.1117/12.643502
PROCEEDINGS
12 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

Analysis and design of authentication watermarking
Proceedings of SPIE (June 22 2004)
VQ/DCT-based robust image watermarking
Proceedings of SPIE (May 12 2006)
Quantization watermarking
Proceedings of SPIE (May 09 2000)
Improved watermarking scheme by reference signal mingling
Proceedings of SPIE (April 29 2002)
Linear restoration of block-transform-coded motion video
Proceedings of SPIE (January 10 1997)
Composite Predictive Coding Of The NTSC Color TV Signal
Proceedings of SPIE (March 17 1983)

Back to Top