| 一种基于DWT域的数字水印算法 |
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| 引用本文： | 董学枢. 一种基于DWT域的数字水印算法[J]. 数字社区&智能家居, 2008, 3(12): 1703-1705 |
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| 作者姓名： | 董学枢 |
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| 作者单位： | [1]扬州大学信息工程学院,江苏扬州225101 [2]江海职业技术学院信息工程系,江苏扬州225101 |
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| 摘 要： | 提出一种结合Arnold置乱技术的小波域灰度图像数字水印算法，将置乱后的数字水印嵌入到载体图像小波分解的低频和部分中高频系数上。实验证明，该算法不仅具有较好的透明性，而且对图像加噪、压缩、剪切等具有较高的鲁棒性。
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| 关 键 词： | 数字水印 离散小波变换 置乱 |
A Digital Watermarking Algorithm Based on DWT |
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| DONG Xue-shu. A Digital Watermarking Algorithm Based on DWT[J]. Digital Community & Smart Home, 2008, 3(12): 1703-1705 |
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| Authors: | DONG Xue-shu |
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| Affiliation: | DONG Xue-shu (1.School of Information Science and Engineering,Yangzhou University, Yangzhou 225101, China; 2.Department of Information, Jianghai Polytechnic College, Yangzhou 225101, China) |
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| Abstract: | a grayscale-image atermarking algorithm based on Discrete Wavelet Transform （DWT） and Arnold transform was proposed .We applied multi-resolution of wavelet transform to embed watermark to the low frenquency wavelet coefficients and part of other frequency wavelet of the original image,Experimental results demonstrate that the embedded watermarking is invisible and has good robustness against the attacks such as noise addition, filtering and JPEG compression. |
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| Keywords: | digital watermarking discrete wavelet transform scrambling |
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