中文说明：好用地 matlab版本地 用hough变换进行直线提取地程序，提取最长地直线，以后会改进，可以提取累计矩阵中，局部峰值点地直线！
English Description：
Good use of Matlab version of the local Hough transform line extraction procedures, extract the longest line, will be improved in the future, can extract the cumulative matrix, local peak point of the line!