基于像素点极性的脆弱水印

3rd International Symposium on Image and Signal Processing and Analysis, 2003. ISPA 2003. Proceedings of the Pub Date : 2003-09-18 DOI:10.1109/ISPA.2003.1296399

C. Kailasanathan

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引用次数: 4

摘要

提出了一种基于Yeung-Mintzer方案的图像脆弱水印认证方案。该方案确实提供了更好的保护，以防止杨敏泽方案提出的所有攻击。在嵌入过程中使用由图像块派生的极坐标集。图像块的中心像素值被少量扰动，从而不改变图像的感知质量。本文还分析了针对其他攻击的安全级别。

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Fragile watermark based on polarity of pixel points

A fragile watermarking scheme for authenticating images based on the Yeung-Mintzer scheme is proposed in this paper. This scheme does provide a better protection against all the attacks proposed for Yeung-Mintzer scheme. A polar set derived from the image blocks is used in the embedding process. The center pixel values of image blocks are perturbed by small quantities in such a way that the perceptual quality of the image is not modified. This paper also analyse the security level with respect to other attacks.

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来源期刊

3rd International Symposium on Image and Signal Processing and Analysis, 2003. ISPA 2003. Proceedings of the

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