The quantization is then applied to extract the histogram of a number of bins as presented in Section 4.3.Finally, MLP is applied to classify faces as presentedin Section 4.4. In this experiment, the 10-fold cross validation strategy is used to evaluate the recognition performance. The experiments are repeated ten times in RMFRD and SMFRD datasets separately, where 9 samples are used as the training set and the remaining sample as the testing set, and the average results are calculated.