如何为 Python 3.4 安装 OpenCV？

How do I install OpenCV for Python 3.4?

提问by user3317287

I use Python 3.4 through Anaconda distribution. They don't seem to have Python 3.4 bindings for OpenCV. I tried to use Cmake from the source, but to no avail. Could anybody please help me to install OpenCV for Python 3.4.x?

我通过 Anaconda 发行版使用 Python 3.4。他们似乎没有 OpenCV 的 Python 3.4 绑定。我尝试从源代码中使用 Cmake，但无济于事。有人可以帮我为 Python 3.4.x 安装 OpenCV 吗？

回答by IronManMark20

There are many tutorials and questions (on SO) about this.

有很多关于此的教程和问题（关于 SO）。

Thisseems to answer your question. Edit: Reproduced below:

这似乎回答了你的问题。编辑：转载如下：

1)  Download OpenCV from http://opencv.org/downloads.html and extract

2)From the extracted folder, copy the file from the extracted directory:   
opencv/build/python/2.7/(either x86 or x64, depending on your Anaconda 
version)/cv2.pyd to your Anaconda site-packages directory, e.g., 
C:\Anaconda\Lib\site-packages

3)To get ffmpeg within opencv to work, you'll have to add the directory 
that ffmpeg is located in to the path (e.g., opencv/sources/3rdparty
/ffmpeg). Then you'll have to find the dll in that folder (e.g., 
opencv_ffmpeg_64.dll) and copy or rename it to a filename that includes 
the opencv version you are installing, (e.g., opencv_ffmpeg249_64) for 
2.4.9.

{End Reproduction}

{结束复制}

EDIT2: OpenCV doesn't support Python 3.x except for OpenCV version 3.0 (still experimental, in beta). Download the 3.0 version from the download site and try that.(Thanks to this question).

EDIT2：OpenCV 不支持 Python 3.x，除了 OpenCV 3.0 版（仍处于试验阶段，处于测试阶段）。从下载站点下载 3.0 版本并尝试。（感谢这个问题）。

A SO question with a possible tip, if the previous doesn't work.

如果以前的方法不起作用，则带有可能提示的 SO 问题。

And finally, I will point you to a read the docs tutorialon how to install it.

最后，我将指导您阅读有关如何安装它的文档教程。

Good luck!

祝你好运！

回答by JSalys

conda install -c menpo opencv3

Does the trick. However you have to have anaconda installed.

有诀窍。但是，您必须安装 anaconda。

回答by susan097

This is Quite Simple way:

这是很简单的方法：

I recommend to use through anaconda.

我建议通过 anaconda 使用。

Create the environment in anaconda(recommended one): conda create -n deeplearning

在anaconda中创建环境（推荐一个）： conda create -n deeplearning

Then, activate by: activate deeplearning

然后，通过以下方式激活： activate deeplearning

Now, Install opencv for python3.x of Anaconda3 as:

现在，为 Anaconda3 的 python3.x 安装 opencv 为：

• conda install -c https://conda.binstar.org/menpo opencv3

  This will simply install opencv3 and other related libraries as: spicy, numpy, scikit-learn and matplotlib in that environment.

• conda install -c https://conda.binstar.org/menpo opencv3

  这将简单地在该环境中安装 opencv3 和其他相关库，如：spicy、numpy、scikit-learn 和 matplotlib。

Check whether Opencv installed or not as:

检查 Opencv 是否安装为：

>>> import cv2
>>> cv2.__version__
'3.1.0'