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Erschienen in:
2006 | OriginalPaper | Buchkapitel
SVD Adapted DCT Domain DC Subband Image Watermarking Against Watermark Ambiguity
verfasst von : Erkan Yavuz, Ziya Telatar
Erschienen in: Multimedia Content Representation, Classification and Security
Verlag: Springer Berlin Heidelberg
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In some Singular Value Decomposition (SVD) based watermarking techniques, singular values (SV) of the cover image are used to embed the SVs of the watermark image. In detection, singular vectors of the watermark image are used to construct the embedded watermark. A problem faced with this approach is to obtain the resultant watermark as the image whose singular vectors are used for restoring the watermark, namely, what is searched that is found. In this paper, we propose a Discrete Cosine Transform (DCT) DC subband watermarking technique in SVD domain against this ambiguity by embedding the singular vectors of the watermark image, too, as a control parameter. We give the experimental results of the proposed technique against some attacks.