Installing OpenCV

Procedure

1. Use PuTTY to log in to the server as the root user.
2. Download the installation package.

   cd /path/to/opencv
   wget https://github.com/opencv/opencv/archive/refs/tags/4.5.5.tar.gz -O opencv-4.4.5.tar.gz

3. Decompress the installation package and go to the directory generated after the decompression.

   tar xvf opencv-4.4.5.tar.gz
   cd opencv-4.4.5

4. Create a build directory.

   mkdir build
   cd build

5. Perform the compilation.

   cmake .. -DCMAKE_INSTALL_PREFIX=/path/to/opencv
   make -j
   make install

6. Load the environment variables.

   export PATH=/path/to/opencv/bin:$PATH
   export LD_LIBRARY_PATH=/path/to/opencv/lib64:$LD_LIBRARY_PATH