采用matlab编写，基于OPTA细化算法，适合入门级新手用，希望对大家有用-Using matlab to prepare, based on OPTA thinning algorithm, suitable for entry-level novice, and I hope useful for all of us

source code in Matlab, function for image thinning, using 2 different algorithm for image thinning. So you can compare that.

本文设计了一套指纹图像预处理和指纹特征提取算法, 利用方向滤波的方法对原始图像进行增强,使用改进的细化算法进行细化, 最后基于脊线跟踪的方法, 用改进的算法更为简洁而有效地避免了各种伪特征。设计的算法经Matlab 实现, 实验效果良好。-Designed a fingerprint image and fingerprint feature extraction algorithm using directional filtering the original image enhanceme