中文说明：NPD特征+SRC算法做人脸识别，源代码是Gabor+SRC做人脸识别，这是改进算法，好处是NPD特征能够快速提取，节省了很多时间，而Gabor特征则提取速度很慢
English Description：
NPD features + SRC algorithm for face recognition, the source code is Gabor + SRC for face recognition, this is an improved algorithm, the advantage is that NPD features can be quickly extracted, saving a lot of time, and Gabor features extraction speed is very slow