| 一种基于HVS的变换域数字水印算法 |
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| 引用本文： | 曹小玲,蔡翔云.一种基于HVS的变换域数字水印算法[J].昆明理工大学学报(理工版),2006,31(4):54-57. |
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| 作者姓名： | 曹小玲 蔡翔云 |
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| 作者单位： | 1. 长江大学,信息与数学学院,湖北,荆州,434023
2. 昆明理工大学,理学院,云南,昆明,650093 |
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| 摘 要： | 以离散余弦变换(DCT)、离散小波变换(DWT)、静态图像压缩编码为基础,依据人眼视觉特性(HVS),提出了一种将二维数字水印信息(灰度图像)经过压缩编码变换后,嵌入到经DWT和DCT变换的原始载体图像的数字水印算法.实验结果表明,此算法对叠加噪声、JPEG压缩、平滑滤波、几何剪切、旋转变换等攻击均具有较好的鲁棒性.
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| 关 键 词： | 离散余弦变换 离散小波变换 人眼视觉特性 数字水印 |
| 文章编号： | 1007-855X(2006)04-0054-04 |
| 收稿时间： | 2005-03-25 |
| 修稿时间： | 2005年3月25日 |
A Digital Watermark Algorithm Based on HVS and Spatial-Domain Techniques |
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| CAO Xiao-ling,CAI Xiang-yun.A Digital Watermark Algorithm Based on HVS and Spatial-Domain Techniques[J].Journal of Kunming University of Science and Technology(Natural Science Edition),2006,31(4):54-57. |
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| Authors: | CAO Xiao-ling CAI Xiang-yun |
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| Affiliation: | 1. School of Information and Mathematics, Yangtze University, Jingzhou, Hubei 434023 ,China; 2. Faculty of Science, Kunming University of Science and Technology, Kunming 650093 ,China |
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| Abstract: | Based on the Discrete Cosine Transform(DCT),Discrete Wavelet Transform(DWT),still image compression coding technique,and Human Visual System(HVS),the 2-dimensional digital watermark(gray image),which has been compression-coding transformed,is embedded into the host image after DWT and DCT.Experimental results show that the proposed watermarking scheme is robust against various signal processing such as noise adding,JPEG compression,smooth filtering,cropping,and rotating transform. |
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| Keywords: | discrete cosine transform discrete wavelet transform human visual system digital watermarking |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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