python 安装opencv_contrib

要安装opencv_contrib库，可以使用以下命令：
pip install opencv-contrib-python

这个命令会自动从PYPI（Python Package Index）上下载并安装opencv_contrib库。

另外，你还可以参考一篇关于Python 3.x安装opencv opencv_contrib的操作方法的文章，里面有详细的步骤和说明，对你有所帮助。

如果你在使用Anaconda环境下，并且已经安装了Python 3.5，但是官网提供的opencv包只支持2.7版本，你可以查找一些资料来解决这个问题，以便让opencv能够在3.5版本上运行。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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