| 一种基于DWT的自适应扩频盲检数字水印算法 |
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| 引用本文： | 陆萍.一种基于DWT的自适应扩频盲检数字水印算法[J].计算机时代,2009(8):6-8. |
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| 作者姓名： | 陆萍 |
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| 作者单位： | 苏州经贸职业技术学院信息系,江苏苏州,215009 |
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| 摘 要： | 提出了一种基于DWT的自适应扩频盲检测数字水印算法。算法将图像的Y分量作小波分解后的中低频子带作为嵌入空间，根据HVS特性计算水印自适应强度因子，对二值水印图像进行混沌调制与Hamming编码，实现了水印的自适应嵌入与盲提取。实验结果表明，该算法对于常见的图像处理具有较强的鲁棒性。
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| 关 键 词： | DWT 扩频 水印算法 HVS |
An Adaptive Blind Spread Spectrum Digital Watermarking Algorithm Based on DWT |
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| LU Ping.An Adaptive Blind Spread Spectrum Digital Watermarking Algorithm Based on DWT[J].Computer Era,2009(8):6-8. |
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| Authors: | LU Ping |
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| Affiliation: | Dept. of Information;Suzhou Institution of Trade & Commerce;Suzhou 215009;China |
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| Abstract: | An adaptive blind spread spectrum digital watermarking algorithm based on DWT is proposed. The algorithm selects the medium-low frequency sub-bands as embedded space from the Y component of the image decomposed by DWT. It computes the adaptive intensity factors of watermarking in term of HVS characteristics and realizes adaptive embedding and blind extraction of watermarking by chaos modulation and Hamming coding for the binary image of watermarking. The experimental results show that the algorithm has stro... |
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| Keywords: | DWT HVS |
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