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Based on the V-descriptors, a novel watermarking algorithm to protect the copyright of vector images is proposed in this paper. Watermarks are embedded in the image's contours. Experiments show that the algorithm is robust against some attacks such as translation, scaling, rotation and local revision.
The Based on the background of anti counterfeit of commercial bills, a novel digital watermarking method is proposed in this paper. The watermarking algorithm is based on a class of orthogonal function systems??V systems. The experiment results show that the algorithm has better robust than the traditional watermark algorithm. Based on the property of uniformity of the corresponding Fibonacci transformation,...
Based on a class of orthogonal functions, a novel digital watermarking method is proposed. This method can be used in the anti counterfeit of commercial bills. The experiment results show that the algorithm is more robust than the traditional watermark algorithm. Based on the property of uniformity of the corresponding Fibonacci transformation, the proposed watermarking method has the following advantages:...
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