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Proceedings Paper

New approach for transformation-invariant image and video watermarking in the spatial domain: self-spanning patterns (SSP)
Author(s): Jana Dittmann; Thomas Fiebig; Ralf Steinmetz
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Paper Abstract

A variety of robust non-perceptual watermarking methods have been proposed to solve the illegal copying and proof of ownership problems. Although a number of broad claims have been made in the field of robustness of various digital watermarking methods. It is still difficult to handle combined or non-linear geometric transformations. In this paper we propose the SSP approach. We use a correlation based watermark pattern approach in the spatial domain which operates on image inherent properties when selecting the marking positions: self spanning patterns (SSP). Each watermark pattern which represents one information bit of the whole watermark string is spanned over four image inherent properties like image edges or corners. These four points specify a polygon over which the watermark pattern is spanned using a polygon filling algorithm. After transformations we search for our points based on the image characteristics. Then we span our pattern over the points and check if there was a one or a zero embedded. Continuing that for all pattern positions we can build the whole watermark string. The advantage of the SSPs is that transformations need not be recognized, the marking positions and our pattern shape can be automatically found.

Paper Details

Date Published: 9 May 2000
PDF: 10 pages
Proc. SPIE 3971, Security and Watermarking of Multimedia Contents II, (9 May 2000); doi: 10.1117/12.384971
Show Author Affiliations
Jana Dittmann, German National Research Ctr. for Information Technology (Germany)
Thomas Fiebig, German National Research Ctr. for Information Technology (Germany)
Ralf Steinmetz, German National Research Ctr. for Information Technology (Germany)

Published in SPIE Proceedings Vol. 3971:
Security and Watermarking of Multimedia Contents II
Ping Wah Wong; Edward J. Delp, Editor(s)

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