图像无极放大的相关资料，其中几篇文章介绍了如何轮廓矢量化方面的知识，在二值图放大中有很大的应用，也可应用到灰度图像中-Promise to enlarge the image of the relevant information, including several articles describes how to contour vector of knowledge, in the binary image to enlarge, there is in some application