人脸检测与特征定位，先做完人脸检测才能标注特征，在人脸检测区域可以进行二值化图像，相似度计算等操作，在特征标注区可以完成边缘提取，标记人脸器官操作-Face detection and feature location, perfect face detection to do first annotation feature, the face detection area in the binarized image can be performed, similarity calculat