拟合圆算法源码(商业)

1、输入一些点

2、执行fitCircle算法

3、输出圆心(x,y)及半径r

Box fitCircle(const std::vector<cv::Point2f>& points) 
{Box box;box.x = 0.0f;box.y = 0.0f;box.r = 0.0f;if (points.size() < 3){return box;}int i = 0;double X1 = 0;double Y1 = 0;double X2 = 0;double Y2 = 0;double X3 = 0;double Y3 = 0;double X1Y1 = 0;double X1Y2 = 0;double X2Y1 = 0;int Sum = points.size();for (i = 0; i < Sum; i++){X1 = X1 + points[i].x;Y1 = Y1 + points[i].y;X2 = X2 + points[i].x * points[i].x;Y2 = Y2 + points[i].y * points[i].y;X3 = X3 + points[i].x * points[i].x * points[i].x;Y3 = Y3 + points[i].y * points[i].y * points[i].y;X1Y1 = X1Y1 + points[i].x * points[i].y;X1Y2 = X1Y2 + points[i].x * points[i].y * points[i].y;X2Y1 = X2Y1 + points[i].x * points[i].