Ubuntu24.04下编译OpenCV + OpenCV Contrib 4.10.0

1. 安装必要软件

sudo apt update

sudo apt-get install -y build-essential

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

sudo apt-get install -y python3-dev python3-numpy libtbbmalloc2 libtbb-dev libjpeg-dev libpng-dev

安装cmake和g++

sudo apt install -y cmake g++

安装项目构建工具，有两个选择，make或ninja， ninja自动支持多线程，make得自己加-j选项，这里先全安装上

sudo apt install -y make ninja-build

2. 配置网络代理

编辑/etc/environment，在末尾添加一行

sudo vi /etc/environment

all_proxy="http://192.168.2.150:10792"

3. 下载OpenCV和OpenCV Contrib(需通过代理访问github)

https://codeload.github.com/opencv/opencv/zip/refs/tags/4.10.0

https://codeload.github.com/opencv/opencv_contrib/zip/refs/tags/4.10.0

4. 将下载后的zip包存储至 /opt/opencv/

sudo mkdir /opt/opencv

sudo mv opencv-4.10.0.zip /opt/opencv/

sudo opencv_contrib-4.10.0.zip /opt/opencv/

cd /opt/opencv

sudo unzip opencv-4.10.0.zip

sudo unzip opencv_contrib-4.10.0.zip

5. 编译opencv

sudo cmake -B build -GNinja -DCMAKE_INSTALL_PREFIX=/opt/opencv4.10.0    -DOPENCV_GENERATE_PKGCONFIG=ON -DOPENCV_EXTRA_MODULES_PATH=/opt/opencv/opencv_contrib-4.10.0/modules

上面cmake命令可加上CMAKE_BUILD_TYPE参数指定编译类别

比如 CMAKE_BUILD_TYPE=RELEASE 或 CMAKE_BUILD_TYPE=DEBUG

sudo cmake --build build/

开始等待漫长的编译

6. 安装opencv

sudo cmake --install build/