| 基于小波和伪随机变换的盲检测图像水印算法 |
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| 引用本文： | 陈森,张兴周.基于小波和伪随机变换的盲检测图像水印算法[J].应用科技,2007,34(1):24-27. |
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| 作者姓名： | 陈森 张兴周 |
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| 作者单位： | 哈尔滨工程大学,信息与通信工程学院,黑龙江,哈尔滨,150001 |
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| 摘 要： | 提出了一种基于小波变换的数字水印算法.采用Arnold变换和伪随机序列变换双密钥相结合,更加稳固了水印序列.变换后的水印序列有选择地嵌入到载体图像的3级小波系数中,嵌入算法采用抖动量化,水印提取为盲提取.实验结果表明该算法具有较好的不可见性,对剪切、噪声污染、滤波、JPEG压缩攻击具有良好的鲁棒性.
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| 关 键 词： | 小波变换 数字水印 鲁棒性 伪随机序列 |
| 文章编号： | 1009-671X（2007）01-0024-04 |
| 收稿时间： | 2006-07-20 |
| 修稿时间： | 2006-07-20 |
Blind watermarking algorithm based on the wavelet and pseudo-random transform |
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| CHEN Sen,ZHANG Xing-zhou.Blind watermarking algorithm based on the wavelet and pseudo-random transform[J].Applied Science and Technology,2007,34(1):24-27. |
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| Authors: | CHEN Sen ZHANG Xing-zhou |
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| Institution: | Colledge of Information and Communication Engineering, Harbin Engineering University, Harbin 150001, China |
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| Abstract: | A digital watermarking algorithm is proposed based on the wavelet transform,which furthmore stablizes the watermarking sequence by combining Arnold transform with pseudo-random sequence transform.The transformed watermarking sequence is embedded in three-level of wavelet coefficients of carrier image selectively.The embedded algorithm adopts dither quantification.The watermark extraction is blind.The experimental results show that this algorithm possesses better invisibility and has good robustness to clipping,noise,filtering and JPEG compression attack. |
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| Keywords: | wavelet transform digital watermark robustness pseudo-random sequence |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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