Python 导入错误：没有名为 cv2 的模块
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ImportError: No module named cv2
提问by Shatil Haque
import numpy as np
import cv2
from matplotlib import pyplot as plt
img = cv2.imread('1.jpg',0)
orb = cv2.ORB()
kp = orb.detect(img,None)
kp, des = orb.compute(img, kp)
img2 = cv2.drawKeypoints(img,kp,color=(0,255,0), flags=0)
plt.imshow(img2),plt.show()
In here, I have installed numpy and opencv in my windows operating system. But i can't find out the proper way to add cv2 module.
在这里，我在我的 Windows 操作系统中安装了 numpy 和 opencv。但我找不到添加 cv2 模块的正确方法。
回答by 101
The easiest way to install OpenCV on Windows is to simply copy the cv2.pydfile into Python's site-packagesdirectory (e.g. C:\python27\Lib\site-packages).
在 Windows 上安装 OpenCV 的最简单方法是简单地将cv2.pyd文件复制到 Python 的site-packages目录中（例如C:\python27\Lib\site-packages）。
To get the cv2.pydfile, download and extract the latest version of the OpenCV installation executable from http://sourceforge.net/projects/opencvlibrary/files/opencv-win/and browse the extracted folder to find the file in the relevant builddirectory (e.g. build\python\x86\2.7).
要获取该cv2.pyd文件，请从http://sourceforge.net/projects/opencvlibrary/files/opencv-win/下载并解压最新版本的 OpenCV 安装可执行文件，然后浏览解压的文件夹以在相关build目录中找到该文件（例如build\python\x86\2.7）。
回答by Lukasz Czerwinski
The fastest and cleanest way is to run pip. It's a clean convenient tool for Python packages.
最快最干净的方法是运行pip。这是一个干净方便的 Python 包工具。
Just run:
赶紧跑：
pip install opencv-pythonor C:\Python27\Scripts\pip.exe install opencv-python
pip install opencv-python或者 C:\Python27\Scripts\pip.exe install opencv-python
