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Proceedings Paper

Watermark extimation through local pixel correlation
Author(s): Matthew J. Holliman; Nasir D. Memon; Minerva M. Yeung
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Paper 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.

Paper Details

Date Published: 9 April 1999
PDF: 13 pages
Proc. SPIE 3657, Security and Watermarking of Multimedia Contents, (9 April 1999); doi: 10.1117/12.344664
Show Author Affiliations
Matthew J. Holliman, Intel Corp. (United States)
Nasir D. Memon, Polytechnic Univ. (United States)
Minerva M. Yeung, Intel Corp. (United States)


Published in SPIE Proceedings Vol. 3657:
Security and Watermarking of Multimedia Contents
Ping Wah Wong; Edward J. Delp, Editor(s)

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