Image authentication and tamper detection using two complementary watermarks

Authors:
Xiaojun Qi;Xing Xin;Ran Chang
Affiliations:
Computer Science Department, Utah State University, Logan, UT;Computer Science Department, Utah State University, Logan, UT;Computer Science Department, Utah State University, Logan, UT
Venue:
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
Year:
2009

Citing 3
Cited 1

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IAS '07 Proceedings of the Third International Symposium on Information Assurance and Security

Semi-fragile Zernike moment-based image water marking for authentication

EURASIP Journal on Advances in Signal Processing - Special issue on advanced image processing for defense and security applications

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Abstract

This paper presents a novel semi-fragile watermarking scheme for image authentication and tamper detection. The proposed scheme extracts content-based image features from the approximation subband in the wavelet domain to generate two complementary watermarks. Specifically, we generate an edge-based watermark sequence to detect any changes after manipulations. This edge-based watermark encodes the invariant relationship between quantized wavelet coefficients after incidental distortions. We also generate the content-based watermark to localize tampered regions. Both watermarks are embedded into the high frequency wavelet domain to ensure the watermark invisibility. Our extensive experimental results show that the proposed scheme outperforms the peer scheme and can successfully identify intentional tampering and incidental modification, and localize maliciously tampered regions.