这是一个导向滤波的文章，惭愧的是我还不是很懂这篇文章的精髓，关于导向滤波，我只想说这是一个很好地滤波，是目前实现滤波时间最快的之一，而且效果也很好-This article is a guide filtering, ashamed that I do not really understand the essence of this article, about the orientation filtering, I just want to say this is a good filte