解決OpenCV中Python3 import cv2的錯誤

首先更換源，見http://www.javashuo.com/article/p-xzphqtnt-ey.html，記得更新庫

而後依次進行如下操做

1、安裝Python-dev

sudo apt-get install aptitude 
sudo aptitude install python-dev 

2、安裝pip3

sudo apt-get install python3-pip
sudo pip3 install --upgrade pip

3、安裝CV2

先sudo apt-get update更新而後在安裝便可

sudo pip3 install opencv-python

 

最後順帶安裝numpy, scipy, matplotlib 記得更改權限

pip3 install numpy
pip3 install scipy
pip3 install matplotlib
pip3 install pandas

 若是系統有python2和python3，將python3設置爲默認

sudo update-alternatives --install /usr/bin/python python /usr/bin/python2 100
sudo update-alternatives --install /usr/bin/python python /usr/bin/python3 150