opencv学习(九)图像绘制DrawEllipse/ Drawpolygon/ DrawFilledCircle/ DrawFilledCircle/ Rectangle(无法识别标识符,待解
DrawEllipse绘制椭圆函数用法voidDrawEllipse(Matimg,doubleangle){intthickness=2;intlineType=8;ellipse(img,Point(window_width/2,window_width/2),Size(window_width/4,window_width/16),angle,0,360,Scalar(255,199,0),