How to install and deploy OpenCV?

2 years ago
Sophia Anderson
2 minutes

Installing OpenCV can be divided into two parts: installing the OpenCV library and configuring the development environment.

Here are the general steps to install OpenCV.

  1. Download the OpenCV library.
  2. Visit the official OpenCV website (https://opencv.org/releases/) to download the latest version of the OpenCV library.
  3. Unzip the downloaded compressed file.
  4. Install dependencies:
  5. Install CMake: CMake is a cross-platform build tool used to generate Makefiles for projects or solutions for Microsoft Visual Studio.

    Visit the official CMake website (https://cmake.org/download/) to download the appropriate version and proceed with the installation.

  6. Install a compiler: Choose the appropriate compiler based on your operating system, such as GCC or Microsoft Visual C++.
  7. Install additional dependencies: Depending on the operating system, you may need to install other dependencies such as the Python development environment and NumPy.
  8. Compile and install the OpenCV library.
  9. Create a ‘build’ folder and open a terminal within that folder.
  10. Run the CMake command to generate a Makefile or Visual Studio solution: cmake -D CMAKE_BUILD_TYPE=Release -D CMAKE_INSTALL_PREFIX=/usr/local ..
  11. Compile and install using the make command: make -j4 // Use 4 cores for compilation (adjust according to machine configuration)
    sudo make install
  12. Set up the development environment:
  13. Configure the compiler: Add the path of the OpenCV library to the compiler’s environment variables.
  14. Setting up IDE: If using an integrated development environment (IDE) such as Visual Studio or Eclipse, it is necessary to configure the project properties in order to link the OpenCV library.
  15. Test installation: Write a simple OpenCV program to test and make sure the installation was successful.

These steps may require slight adjustments based on different operating systems and development environments, but the overall process is similar. To ensure successful installation and deployment, refer to the official OpenCV documentation and related tutorials.

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