目录
1. 下载opencv和opencv-contrib
2. 安装依赖
3. cmake
4. make
5. 安装
6. 配置opencv的路径
7. 测试
后续
1. 下载opencv和opencv-contrib
https://github.com/opencv/opencv/archive/refs/tags/4.6.0.zip
https://github.com/opencv/opencv_contrib/archive/refs/tags/4.6.0.zip
2. 安装依赖
sudo apt-get install build-essential cmake git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libdc1394-22-dev libgtk-3-dev libgtkglext1-dev libgstreamer1.0-dev libavresample-dev libgphoto2-dev libopenblas-dev libatlas-base-dev doxygen libgstreamer-ocaml-dev libgstreamer-plugins-bad1.0-dev libgstreamer-plugins-base1.0-dev libgstreamer-plugins-good1.0-dev libgstreamer1.0-dev libgstreamermm-1.0-dev libtesseract-dev liblept5 libleptonica-dev liblapacke-dev libgstreamer-opencv1.0-0 libgstreamer-plugins-bad1.0-dev libgstreamer-plugins-base1.0-dev libgstreamer-plugins-good1.0-dev libgstreamerd-3-dev libgstreamermm-1.0-dev libv4l-dev libprotobuf-dev libhdf5-dev libgflags-dev python3-numpy3. cmake
cd opencv-4.6.0/
mkdir release
cd release/
cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local/opencv460 -D OPENCV_EXTRA_MODULES_PATH=/home/zxq/code/c++/opencv_contrib-4.6.0/modules ..结果如下。
4. make
make -j 12结果如下。
5. 安装
sudo make install 结果如下。
右上可知，opencv被安装在/usr/local/opencv460/
6. 配置opencv的路径
sudo gedit /etc/ld.so.conf.d/opencv.conf
添加内容：
/usr/local/opencv460/lib
再sudo一下使配置路径生效
sudo ldconfig
7. 测试
cd到opencv测试用例目录。
cd samples
cd cpp
cd example_cmake
cmake .结果如下。
make
./opencv_example结果如下。
出现这个弹窗，说明安装成功。
后续
在ubuntu 下使用CodeBlock配置Opencv
（1）settings->compiler->global compiler settings ->compiler Flags
勾选 Target x86_64 (64bit) [-m64]
（2）global compiler settings ->Search directories->Compiler
add 包含目录。
/usr/local/opencv460/include
/usr/local/opencv460/include/opencv4
/usr/local/opencv460/include/opencv4/opencv2（3）global compiler settings ->Search directories->Linker
add 库文件路径。
/usr/local/opencv460/lib（4）global compiler settings ->Linker settings
add 库文件。点击add然后如下全选。
新建工程：File->New->Projects->Opencv project
