hough变换是实现图像边缘检测的一种有效方法，其基本思想是将测量空间的一点变换到参量空间中的一条曲线或一个曲面，而具有同一参量特征的点交换后在参量空间中相交，通过判断交点处的积累程度来完成特征曲线的检测，-hough transform to achieve image edge detection of one kind of effective method The basic idea of ​ ​ the measurement space point conversion to the parameter space, a curve or a curved surface, and the points with the same parameters characteristic exchange in the parameter space intersect throughthe degree of accumulation of the judgment at the intersection to complete the detection of the characteristic curve,