分组法求点方向图.若要求其他的指纹图像的点方向图,将“fp=imread( finger.tif ) 读入指纹图象”里的imread的参数修改成所需要的图像文件名。图像准备好后，在matlab中直接运行即可。-Packet Method pattern requires fingerprint image point pattern, fp = imread (' finger.tif to' )　reads the fingerprint image " the imread parameters modify the image files into the required names. The image is ready, you can run directly in matlab.