| 一种基于脊波和数字加密的脆弱数字水印算法 |
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| 引用本文： | 宋广华,刘慧.一种基于脊波和数字加密的脆弱数字水印算法[J].河池师专学报,2009(2):72-75. |
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| 作者姓名： | 宋广华 刘慧 |
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| 作者单位： | 河池学院数学系,广西宜州546300 |
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| 基金项目： | [基金项目]河池学院“应用数学重点学科”资助项目（院科研[2007]2号）. |
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| 摘 要： | 脆弱数字水印是当今图形图像认证的一项关键技术，脊波变换的理论是小波分析理论的最新成果，数字加密技术是对多媒体信息进行加密保护的一项非常可靠的技术。在此把最新的脊波技术和数字加密技术结合在一起，提出了一种变换域脆弱数字水印算法，并经仿真试验证实，该算法具有良好的不可见性，且水印对图像的篡改非常敏感，可以有效的对图像进行认证。
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| 关 键 词： | 脆弱数字水印 小波变换 脊波变换 数字加密 |
Fragile Digital Watermarking Algorithm Based on a Ridge of the Wave and Digital Encryption |
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| SONG Guang-hua,LIU Hui.Fragile Digital Watermarking Algorithm Based on a Ridge of the Wave and Digital Encryption[J].Journal of Hechi Normal College,2009(2):72-75. |
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| Authors: | SONG Guang-hua LIU Hui |
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| Institution: | (Department of Mathematics, Hechi University, Yizhou, Guangxi 546300, China) |
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| Abstract: | Fragile digital watermarking is a vital technology of the graphic image authentication. Wavelet transformation theory is an extention of wavelet analysis theory and digital encryption technology is a very reliable technology to encrypt and protect multimedia information. Combining the newest chiropactor technology with digital encryption technlogy, the paper presents a transformation domain fragile digital watermarking algorithm, which is confirmed by simulated experiments to show that the algorithm is of good invisibility, the watermarking is sensitive to image distortion and images can be effectively authenti -cated. |
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| Keywords: | fragile digital watermarking wavelet transformation chiropractors wavelet transformation digital encryption |
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