Description:   The matlab file of LBP feature extraction shows that there are three m files, one is lbp.m, the main LBP algorithm is stored, the other is getmapping, used as an auxiliary function of the algorithm, the other is lbptest.m, and the test code is stored. These three files need to be put in the same folder and add the corresponding picture in the folder. The specific picture name is seen in the lbptest.m code, and running lbptest.m can see the results.