Firstly, the tracking window based on face region was initialized in detecting process. Then, color hueinformation model was established to track the follow-up frame.
利用检测过程中人脸区域初始化跟踪窗口，建立肤色的色调信息模型对后续帧进行跟踪。
2
At the same time, the array of three values simplifies the complexity in the image, so even if a video is of poor quality or a different hue, the information about its relative luminance is retained.