public static bool init(Bitmap bmp)

        {

            try

            {

                lightPoints = new Rectangle[POINTNUM];

                int DIA = 20;                           //光斑最小直径

                int[,] Centers = new int[POINTNUM, 3];  //圆心二维数组【横坐标，纵坐标，半径】

                int Gate = 100;                          //亮度临界点

                int Count = 0;                          //圆心计数器

                int xPoint = 0;                         //圆顶点横坐标

                int yPoint = 0;                         //圆顶点纵坐标

                int radius = 0;                         //圆半径

                int ox = 0;                             //圆心横坐标

                int oy = 0;                             //圆心纵坐标