边缘提取，并用线段分割。内附示例说明，文件来源于作者网站-Edge Linking and Line Segment Fitting

This code is to implement hough transform. used in edge linking

利用Matlab软件，具体实现对于给定图片的边缘提取、链接，同时计算计算图像中每个物体的边界长度、面积、矩，投影、近似圆形的离心率、紧致度和边界的傅立叶描述子。-Using Matlab software, the specific implementation for a given image edge extraction, linking, also calculated for each object in the calculation of the image boundary l