基于颜色的自动找手程序，先由人脸检测取得脸的肤色，再以此去找手。运行需要配置好opencv环境。手放在脸部下方两侧-Color-based automated process to find hands, first face detection to obtain face color, and then in order to find hands. Need to configure your environment to run a good opencv. Hand on the bo