Improved fingerprint image segmentation algorithm

doi:10.3778/j.issn.1002-8331.2008.30.053

Computer Engineering and Applications ›› 2008, Vol. 44 ›› Issue (30): 173-174.DOI: 10.3778/j.issn.1002-8331.2008.30.053

• 图形、图像、模式识别 • Previous Articles Next Articles

Improved fingerprint image segmentation algorithm

SU Yong-li,ZHANG Bo,ZHANG Shu-ling

Department of Mathematics，Northwest University，Xi’an 710069，China

Received:2007-11-28 Revised:2008-02-21 Online:2008-10-21 Published:2008-10-21
Contact: SU Yong-li

一种改进的指纹图像分割算法

苏永利,张博,张书玲

西北大学数学系，西安 710069

通讯作者: 苏永利

Abstract

Abstract: An improved algorithm of the traditional fingerprint image segmentation algorithm-variance method is proposed.A new calculation method of mean and variance of an image block is given，and uses the ratio of the mean and variance as the standard of segmentation.The algorithm can both restrain the influence of the noises，and get the perfect segmentation result for the lower gray contrast image.The results of experiment show the exact and robust of the improved algorithm.

Key words: fingerprint image, image segmentation, variance method

摘要： 提出了一种传统的指纹图像分割算法——方差法的改进算法。该算法给出了图像块均值及方差的新的计算方法，并用均值和方差的比值作为前景和背景区域的分割标准。既能有效抑制噪声对分割效果的影响，又能对对比度较低的图像实现理想分割。实验结果表明该方法比传统的方差法和方向法分割更准确。

关键词: 指纹图像, 图像分割, 方差法

SU Yong-li,ZHANG Bo,ZHANG Shu-ling. Improved fingerprint image segmentation algorithm[J]. Computer Engineering and Applications, 2008, 44(30): 173-174.

苏永利,张博,张书玲. 一种改进的指纹图像分割算法[J]. 计算机工程与应用, 2008, 44(30): 173-174.

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Improved fingerprint image segmentation algorithm

一种改进的指纹图像分割算法

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