中文说明：应用背景我做的是图像处理中的线匹配，但是在匹配之前你需要将图像中的曲线提取出来，这段代码就是实现如何从图像中提取出曲线关键技术 边缘检测、canny算子、曲率计算、滤波过滤、for循环、matlab语言、matlab函数、保存线、保存线端点
English Description：
Application backgroundWhat I do is line matching in image processing, but you need to extract the curve in the image before you can match it. This code is to realize how to extract the image from the image.Key TechnologyEdge detection, Canny operator, curvature calculation, filtering, for, MATLAB, language, matlab function, save the line and save the line end