基于YcBr的肤色识别人脸的大体区域，在根据模版匹配识别出人脸的位置，最后圈出人脸，需要自己修改圈脸框的大小。-Color recognition based on YcBr the general area of the face, in according to the location of the template matching to identify the human face, the last circle face, need to modify the size of t