| 一种基于指纹图像的数字水印算法 |
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| 引用本文： | 焦岳,崔新春,马秀峰. 一种基于指纹图像的数字水印算法[J]. 中国印刷与包装研究, 2013, 0(5): 37-43 |
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| 作者姓名： | 焦岳 崔新春 马秀峰 |
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| 作者单位： | 曲阜师范大学信息技术与传播学院 |
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| 基金项目： | 教育部人文社科项目——基于生物特征水印的数字版权保护关键问题研究(NO.11YJCZH021);山东省精品课程建设立项——Visual C++程序(No.2011BK163);曲阜师范大学本科生科研训练计划项目——基于生物特征的数字水印算法研究(No.2012A061) |
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| 摘 要： | 近年来,生物技术逐渐被应用于身份认证,其中指纹技术是最可靠的认证技术之一.本研究提出一种基于指纹图像的数字水印算法.首先,对指纹图像进行分割、归一化、增强和细化等预处理;其次,利用小波变换对载体图像进行分块;然后,通过对这些块的平均值进行量化来嵌入水印.提取水印也依赖于相应块的平均值,而不需要原始图像参与.本算法提高了水印容量,保证了水印的隐蔽性,同时对有损压缩、噪声、中值滤波和旋转等操作有较好的鲁棒性.
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| 关 键 词： | 指纹图像 数字水印 小波变换 |
A Digital Watermarking Algorithm Based on Fingerprinting Images |
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| JIAO Yue;CUI Xin-chun;MA Xiu-feng. A Digital Watermarking Algorithm Based on Fingerprinting Images[J]. China Printing and Packaging Study, 2013, 0(5): 37-43 |
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| Authors: | JIAO Yue CUI Xin-chun MA Xiu-feng |
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| Affiliation: | JIAO Yue;CUI Xin-chun;MA Xiu-feng;School of Information Technology and Communication,Qufu Normal University; |
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| Abstract: | A digital watermarking algorithm based on fingerprinting image was presented in this paper. First, the fingerprinting image was preprocessed by segmenting, normalizing, enhancing and refining. Then, the cartier image was divided into some blocks by wavelet transform. Finally, watermarking was embedded through the quantification of the average value of these blocks. As the watermarking extraction was dependent on the average value of the corresponding block, the original image was not needed. The proposed algorithm improves the capacity and ensures the invisibility of the watermarking. And it is robust to lossy compression, noise, median filtering and rotation. |
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| Keywords: | Fingerprinting image Digital watermarking Wavelet transform |
| 本文献已被 CNKI 维普 等数据库收录！ |
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