Dual watermarking for protection of rightful ownership and secure image authentication

Authors:
Mathias Schlauweg;Dima Pröfrock;Benedikt Zeibich;Erika Müller
Affiliations:
University of Rostock, Rostock, Germany;University of Rostock, Rostock, Germany;University of Rostock, Rostock, Germany;University of Rostock, Rostock, Germany
Venue:
Proceedings of the 4th ACM international workshop on Contents protection and security
Year:
2006

Citing 6
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Abstract

A digital watermarking approach highly robust to lossy image compression is presented. It is shown how geometrically warping objects can be used to imperceptibly embed information into images for the purpose of property rights protection. Common lossy image compression is optimized for maintaining the geometric image structure. Hence, as we demonstrate, the embedded information is not affected by a successive embedding approach in the compression domain. This second watermarking scheme is used for an efficient JPEG2000-based image authentication, which is robust to JPEG compression and other allowed signal processing operations. We enhance positive wavelet-based water-marking approaches proposed in recent years by image adaptive perceptual modeling and error correction coding without raising a security gap. Our new method is secure in contrast to most of the schemes proposed so far. Lots of popular features of the JPEG2000 compression framework such as quality and resolution scalability, lossless image rotation and flipping are supported. All coefficients of the wavelet decomposition are protected using our new extended scalar quantization and hashing scheme.