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Title

Fast robust template matching for affine resistant image watermarking

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Published in International Workshop on Information Hiding. Dresden (Germany) - Sep 29-oct 1 - Springer Verlag. 1999, p. 200-210
Collection Lecture Notes in Computer Science; 1768
Abstract Digital watermarks have been proposed as a method for discouraging illicit copying and distribution of copyrighted material. This paper describes a method for the secure and robust copyright protection of digital images. We present an approach for embedding a digital watermark into an image using the Fourier transform. To this watermark is added a template in the Fourier transform domain to render the method robust against general linear transformations. We detail a new algorithm for the accurate and efficient recovery of the template in an image which has undergone a general affine transformation. Furthermore we demonstrate how the template can be used as a tool for asserting the presence of a watermark. We also systematically evaluate the algorithm and present results which demonstrate the robustness of the method against some common image processing operations such as compression, rotation, scaling and aspect ratio changes.
Keywords Watermarking
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Research group Computer Vision and Multimedia Laboratory
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PEREIRA, Shelby, PUN, Thierry. Fast robust template matching for affine resistant image watermarking. In: International Workshop on Information Hiding. Dresden (Germany). [s.l.] : Springer Verlag, 1999. p. 200-210. (Lecture Notes in Computer Science; 1768) https://archive-ouverte.unige.ch/unige:47869

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