| 基于Matlab实现的指纹图像增强 |
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| 引用本文： | 王建英,陈世华,孙胜利.基于Matlab实现的指纹图像增强[J].电子科技,2009,22(6). |
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| 作者姓名： | 王建英 陈世华 孙胜利 |
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| 作者单位： | 天津开发区职业技术学院,电子信息系,天津,300457 |
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| 摘 要： | 在指纹识别系统中,指纹图像增强技术起着关键性作用.为了得到较好的指纹图像增强效果,提高指纹识别的准确率及速度,文中介绍了一套基于Matlab实现的指纹图像增强方法.这种方法在Matlab环境下运行,指纹图像增强过程是基于小波分析方法.利用低频系数图像在小波域估计指纹纹线方向,这样就可以有效的抑制高频噪声对纹线方向的影响.实验表明,用Matlab实现的这种指纹图像增强方法,既简单快速,而且又取得了较好的指纹图像增强效果.
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| 关 键 词： | 方向图 方向滤波 小波分析 |
Realization of the Fingerprint Image Enhancement Based on Matlab |
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| Wang Jianying,Chen Shihua,Sun Shengli.Realization of the Fingerprint Image Enhancement Based on Matlab[J].Electronic Science and Technology,2009,22(6). |
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| Authors: | Wang Jianying Chen Shihua Sun Shengli |
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| Affiliation: | Wang Jianying,Chen Shihua,Sun Shengli(Department of Electronic Information,TEDA Polytechnic,Tianjin 300457,China) |
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| Abstract: | Fingerprint image enhancement is essential in fingerprint recognition. To achieve good fingerprint image enhancement effect and improve the accuracy and speed of fingerprint recognition, this paper describes a method for the realization of the fingerprint image enhancement based on Matlab. The fingerprint image is enhanced by the wavelet analysis method. A direction-map-based fingerprint image enhanced in the wavelet domain is designed based on the low quality fingerprint, and the effect of the low quality ... |
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| Keywords: | Matlab |
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