在图像处理中,边缘往往是重要信息,因此边缘的提取方法也多种多样,这有几种基本的边缘提取方法,可以做对比,同时,可以实现跟踪.-In image processing, edge is often important information, so the edge of a variety of extraction methods, which has several basic edge detection methods, can make comparison, at the same