As the human face image is at a high dimension,how to reduce the dimension quickly and extract the main features of the human face images was studied in this paper,as well as how to achieve efficiency in human face recognition.The first step was to study 2DPCA,LDA and RBF neural network algorithm.Then,the 2DPCA+LDA method was designed for human face image feature extraction and dimension reduction,as well as human face image classification,taking advantage of RBF neural network method.Finally,this method wa...