---
title: opencv install
tags: 卒研
---

https://gist.github.com/Kampi/f8ac3bbc621311ba7c932976276261bf

# apt 経由

$ sudo apt-get install libopencv-dev
$ sudo apt-get install python-opencv

# piwheels経由

[piwheels opencv-contrib-python](https://www.piwheels.org/project/opencv-contrib-python/)

[New opencv builds](https://blog.piwheels.org/new-opencv-builds/)

`~/.config/pip/pip.conf `に以下を書く

[list]
format=json
[global]
extra-index-url = https://www.piwheels.org/simple

必要なライブラリのインストール

sudo apt install python3.4 #3.4移行には対応していない

sudo apt install libatlas3-base libsz2 libharfbuzz0b libtiff5 libjasper1 libilmbase12 libopenexr22 libilmbase12 libgstreamer1.0-0 libavcodec57 libavformat57 libavutil55 libswscale4 libqtgui4 libqt4-test libqtcore4

python3.4 -m pip install opencv-contrib-python

pi@raspberrypi:~ $ python3.4
Python 3.4.4 (default, Apr 17 2016, 16:02:33) 
[GCC 5.3.1 20160409] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import cv2
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/pi/.local/lib/python3.4/site-packages/cv2/__init__.py", line 3, in <module>
    from .cv2 import *
ImportError: libhdf5_cpp.so.8: cannot open shared object file: No such file or directory

https://qiita.com/atuyosi/items/5f73baa08c3408f248e8