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指纹图像的预处理算法
引用本文:王玮,李见为,张腾.指纹图像的预处理算法[J].计算机应用,2004,24(5):72-75.
作者姓名:王玮  李见为  张腾
作者单位:重庆大学,光电技术及系统教育部重点实验室,重庆,400044
基金项目:西安电子科技大学ISN国家重点实验室开放基金项目(ISN6-6)
摘    要:根据指纹的固有特性及常用算法在指纹处理中的缺陷,文中提出一套有效的预处理算法。对于图像增强,算法利用指纹的方向特性和频率特性设计出Gabor滤波器对图像进行滤波,取得理想的效果;在图像分割,二值图像处理等方面也作了改进。

关 键 词:指纹  方向图  Gabor滤波器  分割  增强
文章编号:1001-9081(2004)05-0072-04

Pre-processing Algorithm of Fingerprint Image
WANG Wei,LI Jian-wei,ZHANG Teng Chongqing University,Chongqing ,China.Pre-processing Algorithm of Fingerprint Image[J].journal of Computer Applications,2004,24(5):72-75.
Authors:WANG Wei  LI Jian-wei  ZHANG Teng Chongqing University  Chongqing  China
Affiliation:WANG Wei,LI Jian-wei,ZHANG Teng Chongqing University,Chongqing 400044,China)
Abstract:A set algorithm for pre-processing of fingerprint image is proposed in this paper. It is based on the analysis of the inherent feature of fingerprint and the limitation of traditional method in fingerprint image processing. Using Gabor filter designed by ridge orientation and ridge frequency of fingerprint,this algorithm implements fingerprint enhancement with perfect effect. It also makes improvement in other pre-processing steps such as image segmenting and two-domain image processing.
Keywords:fingerprint  direction image  gabor filter  segmentation  enhancement
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