ubuntu配置opencv并用QT调用

2019-12-11

1.官网下载opencv，选用的是opencv-3.4.2，链接

2.解压zip包

1	unzip opencv-3.4.2.zip

3.进入解压后的文件夹中

4.安装依赖库和cmake

1 2	sudo apt-get install cmake sudo apt-get install build-essential libgtk2.0-dev libavcodec-dev libavformat-dev libjpeg.dev libtiff4.dev libswscale-dev libjasper-dev

5.创建编译文件夹，并进行cmake

1
2
3

mkdir my_build_dir
cd my_build_dir
cmake -D CMAKE_BUILD_TYPE=Release -D CMAKE_INSTALL_PREFIX=/usr/local ..

6.进行编译，需要等一会

1
2
3

sudo make
##等待
sudo make install

7.配置opencv编译环境，将opencv库添加到路径

1	sudo gedit /etc/ld.so.conf.d/opencv.conf

在文件里面添加

1	/usr/local/lib

执行命令使配置生效

1	sudo ldconfig

8.配置bash

1	sudo gedit /etc/bash.bashrc

在末尾添加

1 2	PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/local/lib/pkgconfig export PKG_CONFIG_PATH

更新

1	sudo updatedb

9.配置完成，进行测试

找到opencv-3.4.2/samples/cpp/example_cmake目录

执行命令

1
2
3

cmake .
make
./opencv_example

成功打开摄像头，左上角有hello opencv，配置成功

jsonContent: meta: false pages: false posts: title: true date: true path: true text: false raw: false content: false slug: false updated: false comments: false link: false permalink: false excerpt: false categories: false tags: true