我的目标是得到这样的头部图画：http://www.shutterstock.com/pic.mhtml?id=87217450
答案1
您可以从 shutterstock.com 购买图像，然后使用矢量绘图程序，例如Inkscape，以描摹图像。有一个关于如何在 Inkscape 中描摹图像的教程这里。（您可能想在购买图片之前先在其他图片（例如 Google 图片）上尝试一下）。
作为示例，我对这张图片进行了如下操作：
我已采取以下步骤：
- 使用文件 > 导入将图片导入 Inkscape
- 选择图像然后使用路径 > 跟踪位图来跟踪图像；使用颜色量化，有 2 种颜色（2 种颜色将是黑色和白色）
- 现在您有两个对象：原始位图和其跟踪的矢量版本。选择位图并按 即可删除它
Delete。 - 现在将文件保存为 pdf 文件
或者使用inkscape2tikz导出为 TikZ 文件。此插件必须手动安装（请参阅网页上的说明，非常简单）。以下是生成的 TikZ 代码。
\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{tikz}
\usepackage[active,tightpage]{preview}
\PreviewEnvironment{tikzpicture}
\begin{document}
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