| 基于变换域数字图像水印技术的研究 |
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| 引用本文： | 朱香卫,肖亮,吴慧中. 基于变换域数字图像水印技术的研究[J]. 通信技术, 2008, 41(12) |
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| 作者姓名： | 朱香卫 肖亮 吴慧中 |
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| 作者单位： | 1. 南京铁道职业技术学院,苏州校区,江苏,苏州,215031
2. 南京理工大学,计算机科学与技术学院,江苏,南京,210094 |
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| 摘 要： | 以数字图像水印为研究对象,在介绍典型的最低有效位LSB空间域图像水印算法优缺点的基础上,对DFT、DCT、DWT、Ridgelet变换域数字图像水印技术进行了研究,然后重点分析了Contourlet变换新技术,Contourlet变换通过各向异性基实现了图像的多尺度多方向性分解,更能捕获图像的曲线奇异性和匹配人类视觉特性,这一新技术在数字图像水印领域有广阔地应用前景,最后指出了数字水印的发展方向.
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| 关 键 词： | 数字水印 离散小波变换 脊波变换 轮廓波变换 |
Research of Digital Image Watermarking Technology Based on the Transformation Domain |
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| ZHU Xiang-wei,XIAO Liang,WU Hui-zhong. Research of Digital Image Watermarking Technology Based on the Transformation Domain[J]. Communications Technology, 2008, 41(12) |
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| Authors: | ZHU Xiang-wei XIAO Liang WU Hui-zhong |
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| Affiliation: | ZHU Xiang-wei,XIAO Liang,WU Hui-zhong (Suzhou Campus,Nanjing Institute of Railway Technology,Suzhou Jiangsu 215031,China,Institute of Computer Science,Nanjing University of Science & Tech.,Nanjing Jiangsu 210094,China) |
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| Abstract: | The objective of this research is digital image watermarking.Based on the introduction of the advantages and disadvantages of the typical LSB (Least Significant Bit) spa1tial domain image watermarking algorithm,the study on digital image watermarking technology.in transformation domain of DFT,DCT,DWT and Ridgelet is carried out.The new Contourlet transformation technology is emphatically analyzed,which realizes the image multi-scale and direction decomposition by using the anisotropic basis,thus it is more ... |
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| Keywords: | Digital Watermarking Discrete wavelet transformation Ridgelet transformation Contour wavelet transform |
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