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Digital watermark is an important technology for the image verification. Many authors researching on color image watermarking opine RGB color space in the spatial domain is not suitable for embedding marks. In this paper, we propose a digital color image watermarking method using Singular Value Decomposition (SVD). The whole process including embedding and extracting could be finished in RGB components...
Digital watermark is used to prove the rightful ownership or protect a customer's right of using the medium. Liu et al. proposed a SVD-based watermarking scheme, but their method has a serious defect; for un-watermarked images it still incorrectly extracts out the watermark. In this paper, we propose an improved SVD-based watermarking method to resolve this defect. We will show our method is successful...
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