pca特征向量提取 利用pca的方法获取特征植及特征向量 最后可以自己根据需要降维-pca pca feature vector extraction method using characteristics of plants and to obtain the final feature vector dimension reduction can be their own as needed

matlab中的PCA函数，主要用于人脸识别，采用的是特征降维的原理-MATLAB in the Principal Component Analysis function, mainly used for face recognition, using the principle of feature dimension reduction