I'm assuming that you wish to write software to do this. To do it naively you would just find lines and set the vectors. To do it intelligently, you attempt to fit shapes onto the drawing (model fitting). Additionally, you should attempt to ascertain bitmaped regions (regions you can't model through shames or applying textures. I would not recommend going this route as that it will take quite a bit of time and require a bit of graphics and computer vision knowledge. However, the output will much and scale much better than your original output.

你可能想看看potrace。

我刚刚发现这个问题和答案，因为我正试图做同样的事情!我不想使用其他提到的工具。(不想把我的电子邮件给别人，也不想付钱)。我发现Inkscape (v0.91)可以做得很好。本教程简单易懂。

它很简单，选择你的位图在Inkskape和Shift+Alt+B。

Easy

下载Inkscape(完全免费) 按照youtube上这段简短视频的说明去做

正如你将看到的，如果你想做很多其他聪明的。svg的东西，你也可以使用Inkscape。

一个非技术观察:我个人更喜欢这种方法，而不是“免费”网站提供的服务，因为除了通常需要注册之外，通过上传图像，在所有实际条件下，一个人是把图像交给网站所有者。

I'm assuming that you wish to write software to do this. To do it naively you would just find lines and set the vectors. To do it intelligently, you attempt to fit shapes onto the drawing (model fitting). Additionally, you should attempt to ascertain bitmaped regions (regions you can't model through shames or applying textures. I would not recommend going this route as that it will take quite a bit of time and require a bit of graphics and computer vision knowledge. However, the output will much and scale much better than your original output.

用adobe illustrator:

打开Adobe Illustrator。点击“文件”，选择“打开”，将. png文件加载到程序中。在将图像保存为. svg文件之前，根据需要编辑图像。点击“文件”并选择“另存为”。创建新文件名或使用现有名称。确保选择的文件类型是SVG。选择一个目录，点击“保存”保存文件。

or

在线转换器 http://image.online-convert.com/convert-to-svg

我更喜欢人工智能，因为你可以做出任何需要的改变

祝你好运