日本人写的Gabor Filters的c源码，可以直接运行，有图像化的界面，可以实时的修改参数，比较效果。

用VC++编写的一个指纹预处理程序，里面有指纹分割，平滑，Gabor增强，二值化，细化，特征提取等过程，预处理的指纹图像效果很好-Using VC++ to prepare a fingerprint pre-processing procedure, there are fingerprint segmentation, smooth, Gabor enhanced binarization, thinning, feature extraction, such as the process

It contains positional PID algorithm, integral separate PID, There are good reference value, Gabor wavelet transform and PCA face recognition code.