linux环境下编译安装opencv

Dear 丶 2023-08-17 16:58 74阅读 0赞

获取opencv源码  
`git clone git@github.com:opencv/opencv.git`  
获取opencv\_contrib源码  
`git clone git@github.com:opencv/opencv_contrib.git`  
列举所有tag  
`git tag -l`  
![722623-20190919150406112-1420049043.png][]

这里以安装3.4.7为例  
`git checkout tags/3.4.7`  
![722623-20190919150618639-581715597.png][]

opencv\_contrib同样使用此方法检出对应的版本源码,注意版本号严格一致,否则会出现问题

为了避免污染文件,首先创建一个用于存放编译产生文件的目录  
`mkdir build`  
`cd build`

在该目录下运行cmake  
`cmake -DCMAKE_BUILD_TYPE=Release -DOPENCV_GENERATE_PKGCONFIG=ON -DCMAKE_INSTALL_PREFIX=/usr/local/opencv347 -DOPENCV_EXTRA_MODULES_PATH=../../opencv_contrib/modules/ ..`

*  \-DOPENCV\_GENERATE\_PKGCONFIG=ON opencv4默认不生产pc文件,需要开启此项
 *  \-DCMAKE\_INSTALL\_PREFIX=/usr/local/opencv347 opencv的安装路径,可以省略,将安装到默认/usr/local目录
 *  \-DOPENCV\_EXTRA\_MODULES\_PATH=../../opencv\_contrib/modules/ 将 opencv 和 opencv\_contrib 一起编译，如果不需要 opencv\_contrib 可以将此项去掉

然后是一段等待  
![722623-20190919152533760-238392894.png][]

成功后执行如下命令开始编译,这里开启了8个线程  
`make -j8`  
![722623-20190919152906081-1694110936.png][]

然后执行  
`sudo make install`  
![722623-20190919153058795-233433892.png][]

## 配置 ##

cd /etc/ld.so.conf.d/
    sudo touch opencv347.conf
    # 根据安装位置
    sudo sh -c 'echo "/usr/local/opencv347/lib" > opencv347.conf' 
    sudo ldconfig

复制pc文件  
`sudo cp -f /usr/local/opencv347/lib/pkgconfig/opencv.pc /usr/lib/pkgconfig/opencv347.pc`

测试一下  
`pkg-config --modversion opencv347`

## 测试程序 ##

cpp

#include <opencv2/core.hpp>
    #include <iostream>
    
    using namespace std;
    using namespace cv;
    
    int main(int argc, char **argv) {
        cout << "OpenCV version : " << CV_VERSION << endl;
        cout << "Major version : " << CV_MAJOR_VERSION << endl;
        cout << "Minor version : " << CV_MINOR_VERSION << endl;
        cout << "Subminor version : " << CV_SUBMINOR_VERSION << endl;
        return 0;
    }

cmake

cmake_minimum_required(VERSION 3.14)
    project(opencvhelloworld)
    
    set(CMAKE_CXX_STANDARD 14)
    
    find_package( OpenCV 3.4.7 REQUIRED )
    add_executable(opencvhelloworld main.cpp)
    target_link_libraries( opencvhelloworld ${OpenCV_LIBS} )

运行后可以看到opencv版本号  
![722623-20190919153846708-595042653.png][]

cmakelist文件修改`find_package( OpenCV 3.4.7 REQUIRED )`可以引入其他版本

cmake

cmake_minimum_required(VERSION 3.14)
    project(opencvhelloworld)
    
    set(CMAKE_CXX_STANDARD 14)
    
    find_package( OpenCV 4 REQUIRED )
    add_executable(opencvhelloworld main.cpp)
    target_link_libraries( opencvhelloworld ${OpenCV_LIBS} )

这个是通过pacman安装的4.1.1,同样可以使用此方法引入

![722623-20190919154052077-121286206.png][]

## 参考文献 ##

*  [Arch / Manjaro Linux下 Opencv 编译 配置 查看][Arch _ Manjaro Linux_ Opencv]
 *  [如何编译 opencv3 和 opencv\_contrib（Linux）][opencv3 _ opencv_contrib_Linux]
 *  [ubuntu16.04下opencv3.2和opencv\_contrib编译安装][ubuntu16.04_opencv3.2_opencv_contrib]
 *  [OpenCV\_contrib模块概述][OpenCV_contrib]
 *  [CMakeLists.txt添加opencv库注意事项][CMakeLists.txt_opencv]
 *  [CMake找不到opencv库解决办法][CMake_opencv]
 *  [CMakeLists.txt添加opencv库注意事项][CMakeLists.txt_opencv]
 *  [Set Opencv path for a c++ project using Cmake][Set Opencv path for a c_ project using Cmake]
 *  [How to Have Multiple Versions of OpenCV Side by Side][]
 *  [cmake简明使用指南][cmake]
 *  [linux下编译C++写的opencv程序][linux_C_opencv]
 *  [Linux下使用自定义路径来运行OpenCV][Linux_OpenCV]
 *  [源码包的安装与pkg-config][pkg-config]
 *  [pkg-config 维基百科，自由的百科全书][pkg-config 1]
 *  [理解 Linux中的pkg-config 工具][Linux_pkg-config]
 *  [/etc/ld.so.conf.d/目录下文件的作用][etc_ld.so.conf.d]
 *  [linux环境下安装opencv (c++) 编译undefined reference错误的解决办法][linux_opencv _c_ _undefined reference]
 *  [c – 错误：’create’不是’cv :: Tracker’的成员][c _ _create_cv _ Tracker]
 *  [如何让gcc的编译错误信息以英文的方式输出][gcc]
 *  [如何在Python和C ++中输出OpenCV版本号][Python_C _OpenCV]
 *  [opencv 跑KCF跟踪 配置opencv\_contrib过程中遇到的坑][opencv _KCF_ _opencv_contrib]

转载于:https://www.cnblogs.com/zbqhc/p/11550307.html

[722623-20190919150406112-1420049043.png]: /images/20230809/0378dd6b91a34581a5dbcd87db409d72.png
[722623-20190919150618639-581715597.png]: /images/20230809/723f612596914e8bae9a7d4f8acd38c4.png
[722623-20190919152533760-238392894.png]: /images/20230809/eed77c260a4b4acd9219e44114e244ad.png
[722623-20190919152906081-1694110936.png]: /images/20230809/55a15437667b402faec94f45beba3b0f.png
[722623-20190919153058795-233433892.png]: /images/20230809/7f48a2f4f33b4609a3141b4828e08d7b.png
[722623-20190919153846708-595042653.png]: /images/20230809/df3a8dd4db404cada839a85be27a5a03.png
[722623-20190919154052077-121286206.png]: /images/20230809/96bb76aedf5049578370e1b0616079ab.png
[Arch _ Manjaro Linux_ Opencv]: https://www.cnblogs.com/geoffreyone/p/10819397.html
[opencv3 _ opencv_contrib_Linux]: https://www.cnblogs.com/klchang/p/7510526.html
[ubuntu16.04_opencv3.2_opencv_contrib]: https://blog.csdn.net/CupidYzw97/article/details/74857467
[OpenCV_contrib]: https://blog.csdn.net/zmdsjtu/article/details/80736258
[CMakeLists.txt_opencv]: https://blog.csdn.net/u012816621/article/details/51732932
[CMake_opencv]: https://blog.csdn.net/wjdexz/article/details/78348588
[Set Opencv path for a c_ project using Cmake]: https://stackoverflow.com/questions/37336667/set-opencv-path-for-a-c-project-using-cmake
[How to Have Multiple Versions of OpenCV Side by Side]: https://code.litomisky.com/2014/03/09/how-to-have-multiple-versions-of-the-same-library-side-by-side/
[cmake]: https://www.cnblogs.com/zjutzz/p/6815342.html
[linux_C_opencv]: https://hihozhou.com/blog/2017/05/11/linux-compile-opencv-c++-file.html
[Linux_OpenCV]: http://vra.github.io/2017/12/04/opencv-custom/
[pkg-config]: http://www.chenlianfu.com/?p=1490
[pkg-config 1]: https://zh.wikipedia.org/wiki/Pkg-config
[Linux_pkg-config]: https://www.cnblogs.com/woshijpf/articles/3840840.html
[etc_ld.so.conf.d]: https://blog.csdn.net/Bruce_0712/article/details/78816790
[linux_opencv _c_ _undefined reference]: https://www.cnblogs.com/zbqhc/p/11488164.html
[c _ _create_cv _ Tracker]: https://codeday.me/bug/20190724/1522735.html
[gcc]: https://bbs.csdn.net/topics/90355528
[Python_C _OpenCV]: https://www.mashangxue123.com/opencv/3306323197.html
[opencv _KCF_ _opencv_contrib]: https://blog.csdn.net/limingbocsdn/article/details/80629407