| 基于小波变换和置乱技术的二值水印新算法 |
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| 引用本文： | 顾艳春,HAN Guo-qiang,沃焱,LONG Jian-yi.基于小波变换和置乱技术的二值水印新算法[J].计算机工程与设计,2008,29(15). |
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| 作者姓名： | 顾艳春 HAN Guo-qiang 沃焱 LONG Jian-yi |
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| 作者单位： | 华南理工大学计算机科学与工程学院,广东,广州,510640 |
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| 基金项目： | 国家自然科学基金，广东省自然科学基金，广东省自然学基金 |
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| 摘 要： | 提出一种基于小波变换和置乱技术的二值水印新算法.将载体图像进行置乱变换和小波变换,将水印图像嵌入到低频系数中,嵌入时根据不同的能量范围设置不同的嵌入强度,且根据二值水印图像本身的特点对优值像素和劣值像素设置不同的调整因子.实验结果表明,该算法对加噪、JPEG压缩、裁剪、图像增强、滤波等处理都有很好的抵抗力.
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| 关 键 词： | 信息隐藏 小波变换 置乱技术 数字水印 二值图像 人类视觉系统 |
Novel binary image watermarking algorithm based on DWT and scrambling technique |
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| GU Yan-chun,HAN Guo-qiang,WO Yan,LONG Jian-yi.Novel binary image watermarking algorithm based on DWT and scrambling technique[J].Computer Engineering and Design,2008,29(15). |
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| Authors: | GU Yan-chun HAN Guo-qiang WO Yan LONG Jian-yi |
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| Affiliation: | GU Yan-chun,HAN Guo-qiang,WO Yan,LONG Jian-yi(Department of Computer Science , Engineering,South China University of Technology,Guangzhou 510640,China) |
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| Abstract: | A novel binary image watermarking algorithm based on discrete wavelet transformation(DWT) and scrambling technique is proposed.The carrier image is first encrypted by scrambling technique and decomposed by means of the wavelet transform.Then,the binary watermark image is embedded into the DWT low frequency subband.The embedding strength varies from the energy.And different adjustment factor is used for different pixel values according to the watermark image itself.Experimental results demonstrate that the p... |
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| Keywords: | information hiding wavelet transform scrambling technique digital watermarking binary image human visual system |
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