| 基于二值离散运算的自适应数字图像水印算法 |
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| 引用本文： | 周亚训,盖娜,金炜.基于二值离散运算的自适应数字图像水印算法[J].光电工程,2009,36(6). |
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| 作者姓名： | 周亚训 盖娜 金炜 |
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| 作者单位： | 宁波大学,信息科学与工程学院,浙江,宁波,315211 |
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| 基金项目： | 浙江省自然科学基金，宁波大学王宽诚幸福基金 |
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| 摘 要： | 论文提出了一种在小波变换域内基于二值离散运算的自适应数字图像水印算法.算法利用人眼视觉掩盖特性,根据要嵌入的伪随机数水印长度自适应地选择原始图像小波逼近子图中纹理信息丰富的图像子块,通过对这些图像子块系数的二值离散修改实现水印的嵌入,水印检测无需原始图像.由于水印的嵌入与检测是基于二值离散运算,所嵌入的水印具有很理想的鲁棒性,能免疫于常规图像处理方法的有限攻击.同时,嵌入的水印具有理想的隐蔽效果,完全满足水印不可觉察性要求.
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| 关 键 词： | 二值离散运算 小波变换 鲁棒性 自适应数字图像水印算法 |
An Adaptive Digital Image Watermarking Algorithm Based on Binary Discrete Operation |
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| ZHOU Ya-xun,GAI Na,JIN Wei.An Adaptive Digital Image Watermarking Algorithm Based on Binary Discrete Operation[J].Opto-Electronic Engineering,2009,36(6). |
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| Authors: | ZHOU Ya-xun GAI Na JIN Wei |
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| Affiliation: | ZHOU Ya-xun,GAI Na,JIN Wei (College of Information Science and Engineering,Ningbo University,Ningbo 315211,Zhejiang Province,China) |
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| Abstract: | An adaptive digital image watermarking algorithm based on binary discrete operation was proposed in the wavelet transform domain.At first,the wavelet approximation sub-image of the original image was decomposed into blocks and classified by using the human visual masking characteristics.Then,the blocks with best abundant texture information were selected adaptively according to the size of the pseudo-random sequence watermark,and the watermark was embedded by adjusting these block coefficients based on the ... |
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| Keywords: | binary discrete operation wavelet transform robustness adaptive digital image watermarking algorithm |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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