OpenCV在Linux下的配置步骤（简单有效）

Posted 2021-09-02 啥都想干好&&啥都干不好

1.安装依赖（Opencv依赖的一些库）

sudo apt-get install cmake libgtk2.0-dev libavformat-dev libjpeg.dev libpng-dev libtiff-dev libtiff4.dev libswscale-dev libjasper-dev libcurl4-openssl-dev libtbb2 libdc1394-22-dev

2.配置cmake工具，安装

1.在Ｏｐｅｎｃｖ4.5.3目录下新建build目录在里面执行改命令构建makefile
cmake -D CMAKE_BUILD_TYPE=Release -DOPENCV_GENERATE_PKGCONFIG=ON -D CMAKE_INSTALL_PREFIX=/home/pi/opencv/opencv-4.5.3_install -D        //安装目录 OPENCV_EXTRA_MODULES_PATH=/home/pi/opencv/opencv_contrib-4.5.3/modules ..

2.$make -j4                //编译源码

3.$make install            //安装

3.设置系统环境变量

１．＄sudo vim /etc/ld.so.conf.d/opencv3.conf
２．＄/home/pi/opencv/opencv-4.5.3_install/lib        //在文件中加入
３．＄sudo ldconfig

4.设置bash环境变量

１．＄vim ~/.bashrc
２．＄export PKG_CONFIG_PATH=/home/pi/opencv/opencv-4.5.3_install/lib/pkgconfig                //在文件中加入
３．＄source ~/.bashrc

5.检查安装

pkg-config --cflags --libs opencv4