OpenCVSharp学习笔记（八）绘制圆形&椭圆形

 public static void Circle(InputOutputArray img, Point center, int radius, Scalar color, int thickness = 1, LineTypes lineType = LineTypes.Link8, int shift = 0);

Cv2.Circle(img,new Point(100,100),50, Scalar.Red,-1,LineTypes.Link8,0);

public static void Ellipse(InputOutputArray img, Point center, Size axes, double angle, double startAngle, double endAngle, Scalar color, int thickness = 1, LineTypes lineType = LineTypes.Link8, int shift = 0);

Cv2.Ellipse(img, new Point(320, 240), new Size(100, 50), 0, 0, 360, Scalar.Red);