中文说明：应用背景如今人脸识别技术已经被应用到越来越广泛的方面，而是否能通过代码来对人脸识别技术进行训练和识别也变得极其重要。关键技术本代码使用训练数据训练一个HMM模型的子函数供给测试函数调用，当然，数据你可以自己加以更换，关键是你可以利用代码的框架对人脸识别模型进行训练和识别。
English Description：
Application backgroundNowadays, face recognition technology has been applied to more and more widely, and it is very important to train and recognize the face recognition technology.Key TechnologyThis code uses the training data to train a HMM model of the sub function supply test function call, of course, the data you can change yourself, the key is that you can use the code framework to train and recognize the face recognition model.