Một lược đồ thủy vân mới dựa trên ý tưởng SVD
Abstract
In this paper, we propose a novel watermarking scheme based on the idea of SVD (Singular Value Decomposition). However, our scheme uses the largest eigenvalues and eigenvectors instead of using SVD. As result in comparison with some recent SVD-based watermarking schemes, such as those of Chung et.al and Lai, the proposed scheme has lower computational complexity, higher security, better quality of watermarked images and more robust against some attacks.References
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