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Image Watermarking Algorithm using DCT, DWT and SVD

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Author(s): Nidhi H. Divecha | N. N. Jani

Journal: International Journal of Computer Applications
ISSN 0975-8887

Volume: ncipet;
Issue: 10;
Date: 2012;
Original page

Keywords: Watermark | DWT | DCT | SVD

ABSTRACT
The growing problem of the unauthorized reproduction of digital multimedia data such as movies, television broadcasts, and similar digital products has triggered worldwide efforts to identify and protect copyright ownership of multimedia contents. In the last decade digital watermarking techniques have been devised to answer the ever-growing need to protect the intellectual property. discrete wavelet transform (DWT) and discrete cosine transform (DCT) are two most popular tools used in watermarking algorithm. With the increasing use of Singular Value Decomposition (SVD), the digital watermarking technology in transform domain has been greatly developed. Aim of this paper is to provide robust technique based on DWT, DCT and SVD, we propose a new watermarking algorithm for digital image. Experimental results show that this algorithm combines the advantages of these three transforms. It can satisfy the imperceptibility and robustness very well. This scheme is robust against all sorts of attacks. It has very high data hiding capacity.

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