Watermark extimation through local pixel correlation

Matthew J. Holliman; Nasir D. Memon; Minerva M. Yeung

doi:10.1117/12.344664

9 April 1999 Watermark extimation through local pixel correlation

Matthew J. Holliman, Nasir D. Memon, Minerva M. Yeung

Proceedings Volume 3657, Security and Watermarking of Multimedia Contents; (1999) https://doi.org/10.1117/12.344664
Event: Electronic Imaging '99, 1999, San Jose, CA, United States

Abstract

Many invisible watermarking schemes can be modeled as the addition of a watermark signal to an image, yielding a watermarked variant perceptually similar to the original image. In this paper, we describe a method by which an attacker, given only an image watermarked with such a technique, can attempt to construct an approximation to the watermark. The technique estimates an embedded signal by taking advantage of the inter-pixel correlation typically found in natural images, thereby allowing for a method of both watermark removal and watermark forgery. Furthermore, the approach is computationally inexpensive, making it suitable for attacks on proposed video watermarking schemes.

Citation Download Citation

Matthew J. Holliman, Nasir D. Memon, and Minerva M. Yeung "Watermark extimation through local pixel correlation", Proc. SPIE 3657, Security and Watermarking of Multimedia Contents, (9 April 1999); https://doi.org/10.1117/12.344664

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