Question

求助Ubuntu下安装opencv3.1.0

Answer 1

opencv编译安装
编译环境安装：

[plain] view plain copy
sudo apt-get install build-essential

必需包安装：

[plain] view plain copy
sudo apt-get install cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev

可选包安装：

[plain] view plain copy
sudo apt-get install python-dev python-numpy libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libjasper-dev libdc1394-22-dev

opencv下载：
稳定版
[plain] view plain copy
wget https://github.com/Itseez/opencv/archive/3.1.0.zip

github源代码

[plain] view plain copy
git clone git://github.com/Itseez/opencv.git

创建编译的临时目录：

[plain] view plain copy
cd ~/opencv
mkdir build
cd build

注意： 这里假设opencv解压开的或者从github获取的源代码目录在用户主目录下。

生成cmake编译配置：

[plain] view plain copy
cmake -D CMAKE_BUILD_TYPE=Release -D CMAKE_INSTALL_PREFIX=/usr/local ..

编译：

[plain] view plain copy
make -j4 # runs 4 jobs in parallel

安装opencv：

[plain] view plain copy
sudo make install

运行测试：

[plain] view plain copy
git clone https://github.com/Itseez/opencv_extra.git
OPENCV_TEST_DATA_PATH=~/opencv_extra
~/opencv/build/bin/opencv_test_core

一个例子：
首先创建一个目录 test，并进入目录：

[plain] view plain copy
mkdir test
cd test

其次，创建文件 DisplayImage.cpp 如下：

[plain] view plain copy
#include <stdio.h>
#include <opencv2/opencv.hpp>
usingnamespacecv;
int main(int argc,char** argv )
{
if( argc != 2 )
{
printf("usage: DisplayImage.out <Image_Path>\n");
return-1;
}
Mat image;
image = imread( argv[1], 1 );
if( !image.data )
{
printf("No image data \n");
return-1;
}
namedWindow("Display Image", WINDOW_AUTOSIZE );
imshow("Display Image", image);
waitKey(0);
return0;
}

接着，创建cmake配置文件 CMakeLists.txt，如下：

[plain] view plain copy
cmake_minimum_required(VERSION 2.8)
project( DisplayImage )
find_package( OpenCV REQUIRED )
include_directories( ${OpenCV_INCLUDE_DIRS} )
add_executable( DisplayImage DisplayImage.cpp )
target_link_libraries( DisplayImage ${OpenCV_LIBS} )

最后运行：

[plain] view plain copy
./DisplayImage psu.jpg
#随便一张图片都行