膚色偵測,利用r,g抓出膚色的範圍，一個簡單的範例程式，自己也可以制定threshold更正想要設定的膚色範圍。-Color detection, the use of r, g out of the scope of color, a simple example of the program, they would be in the development of threshold corrections to the color you want to set the scope.