| 基于曲波变换的彩色图像零水印研究 |
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| 引用本文： | 安虎,李怡璇,徐力,涂源钊. 基于曲波变换的彩色图像零水印研究[J]. 电子测量技术, 2010, 33(2): 45-48 |
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| 作者姓名： | 安虎 李怡璇 徐力 涂源钊 |
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| 作者单位： | 四川大学锦江学院,计算机科学与工程系,眉山,620860;四川大学,电气信息学院,自动化系,成都,610065 |
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| 摘 要： | 提出了一种基于曲波变换的彩色图像零水印构造和检测算法。利用原图像进行USFFT算法的曲波变换（Curvelet Transform）和离散余弦变换（DCT）得到的系数进行二值化处理,构造具有一定鲁棒性的水印,解决了水印嵌入时鲁棒性与隐蔽性之间的矛盾,更好地保护了原图像信息。该算法通过抗攻击测试和识别测试,证明其具有性能稳定、可行性高的特点。
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| 关 键 词： | 曲波变换 USFFT算法 DCT RGB色彩系统 零水印 |
Color image zero-watermarking algorithm based on curvelet transformation |
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| An Hu,Li Yixuan,Xu Li,Tu Yuanzhao. Color image zero-watermarking algorithm based on curvelet transformation[J]. Electronic Measurement Technology, 2010, 33(2): 45-48 |
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| Authors: | An Hu Li Yixuan Xu Li Tu Yuanzhao |
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| Affiliation: | 1.Department of computer science and engineering;Jin Jiang College of Sichuan University;Meishan 620860;2.Department of Automation;College of Electrical Engineering and Information Technology;Sichuan University;Chengdu 610065 |
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| Abstract: | This paper puts forward an algorithm base on USFFT algorithm of Curvelet Transform,which is about constructing zero-watermarking and detection for digital colour image.The authors use Curvelet Transform and Discrete Cosine Transform to dispose the image and chalk up the coefficients,then dispose of the coefficients by Thresholding Processing,and construct watermark that possess robustness.It availably solves the antinomy between robustness and imperceptibility and protects the copyright of image better.The ... |
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| Keywords: | curvelet transform USFFT DCT RGB color system zero-watermarking |
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