Compilation and Installation

Use PuTTY to log in to the server as the root user.
Install the OpenCV dependency libraries and tools.
```
yum install git gcc-c++ cmake -y
```
Go to the source package directory and decompress the source package.
```
cd /path/to/opencv
tar xvf 4.5.5.tar.gz
cd opencv-4.5.5
```
Create a build directory.
```
mkdir build
cd build/
```

Perform the compilation.

cmake .. -DCMAKE_INSTALL_PREFIX=/path/to/opencv/opencv
make -j8 && make install

Parent topic: OpenCV 4.5.5 Porting Guide (openEuler 20.03)