文章基本信息

标题：A ROBUST METHOD FOR DIGITAL IMAGES WATERMARKING BASED ON COMBINATION OF SVD, DWT AND DCT USING OPTIMAL BLOCK
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作者：MOHAMED RADOUANE ; TARIK BOUJIHA ; ROCHDI MESSOUSSI 等
期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2014
卷号：59
期号：2
出版社：Journal of Theoretical and Applied
摘要：With the growth of the Internet, development of digital media technologies and computer network, the change and the protection of copyright have become very important. To protect multimedia data against illegal recording and retransmission, the integration of a signal (digital signature, watermark) has become an obligation without modifying quality of the original image, the goal of this operation is to identify the owner and protect his intellectual property. Digital watermarking has been proposed as a solution to solving the copyright problem by introducing invisible data (watermark) into original image. In this paper, we propose a robust method for digital images watermarking. This method is achieved by searching the optimal block that can be used to insert the watermark in original image by modifying the singular value decomposition (SVD) in DWT (discrete wavelet transform) combined with DCT (Discrete Cosine Transform) . The experimental results show that this imperceptible method combines the advantage of three transformations to ensure robustness against most attacks.
关键词：Watermarking; DWT; SVD; DCT; Entropy