指纹识别代码的后期（特征提取及匹配）结合指纹识别前期的图像预处理效果更好-Late fingerprint identification code (feature extraction and matching) combines fingerprint image preprocessing better pre-

自己编写的形态学滤波预处理指纹图像matlab编程，包括n*n二值腐蚀、膨胀、开、闭操作。-I have written a fingerprint image preprocessing morphological filtering matlab programming, including n* n binary erosion, dilation, opening and closing operation.