从Github源码安装Opencv

1.准备工作

编译环境安装:

$ sudo apt-get install build-essential

必需包安装:

$ sudo apt-get install cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev

可选包安装:

sudo apt-get install python-dev python-numpy libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libjasper-dev libdc1394-22-dev

2.下载opencv

去opencv的github下载源码到~/

$ cd ~/
$ wget https://github.com/opencv/opencv/archive/3.2.0.zip
$ unzip 3.2.0.zip
$ rm 3.2.0.zip
$ wget https://github.com/opencv/opencv_contrib/archive/3.2.0.zip
$ unzip 3.2.0.zip
$ rm 3.2.0.zip

此时目录下应有如下两个文件夹:

opencv-3.2.0  opencv_contrib-3.2.0

也可以选择其他稳定版本:

opencv

opencv_contrib

3.编译安装

创建编译目录

$ cd opencv-3.2.0/
$ mkdir build/
$ cd build

生成cmake编译配置:

$ cmake -D CMAKE_BUILD_TYPE=Release -D CMAKE_INSTALL_PREFIX=/usr/local -D OPENCV_EXTRA_MODULES_PATH=~/opencv_contrib-3.2.0/modules ..

编译

$ make -j4 # runs 4 jobs in parallel

安装

$ sudo make install

4. 安装成功

c/c++库安装成功

查看lib/目录下是否有相关的库文件

$ ls /usr/local/lib/ | grep opencv

查看include/目录下是否有opencv和opencv2文件夹

$ ls /usr/local/include/ | grep opencv

python接口是否导入

查看一下python的import路径

$ python -c "import sys; print sys.path"

去相应的dist-packages目录或者site-packages目录下看看有没有cv2.so, 如果有则说明成功。

在python中

import cv2

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