经典的hough直线变换检测算法，可以极坐标进行转换，然后再检测直线-Line detection algorithm

霍夫变换检测直线，利用传统霍夫变换对图片中的直线进行检测，效果一般，有待改进。-Hough transform to detect straight line, using traditional Hough transform to detect straight lines in the picture, the general effect, could be improved.

matlab代码用来实现霍夫变换检测直线，比较好哦用。-matlab code used to implement the Hough transform to detect straight lines, with more Ay.