Introduction - If you have any usage issues, please Google them yourself
Face detection methods are mainly based on knowledge of the method, the characteristics of constant method, template matching method, the method based on appearance Facial features localization method based on prior knowledge, geometric shape, color, appearance and associated information and so on five categories Facial expression recognition method, divided into recognition method based on the geometric features and recognition method based on the whole, the recognition method based on the model, the identification method based on template.