First Mehtod

NOTE: Folder names may vary and may need tweaking

Dependencies

• Open terminal and check for xcode tools xcode-select --install

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Using Homebrew

• Run: brew install opencv (It will take some time)
• It's installed location is: cd /usr/local/Cellar/opencv and locate for opencv4 folder

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Second Method

( For linux its almost same )

Building from source

• Insatll make brew install make
• Install cmake brew install cmake
• Download opencv .zip from github
• Unzip it in ~ home dirctory
• Go to unziped folder and follow:
  • mkdir -p build && cd build
  • cmake -D CMAKE_BUILD_TYPE=RELEASE \ -D CMAKE_INSTALL_PREFIX=/usr/local \ -D INSTALL_C_EXAMPLES=ON \ -D INSTALL_PYTHON_EXAMPLES=ON \ -D OPENCV_GENERATE_PKGCONFIG=ON \ -D OPENCV_EXTRA_MODULES_PATH=~/opencv_build/opencv_contrib/modules \ -D BUILD_EXAMPLES=ON ..
  • make -j8
  • sudo make install
• Remove the opencv folder from home directory
• It's installed location is cd /usr/local/include/ and locate for opencv4 folder

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Final Step

For VS Code

• Open configuration pallate, then open the c_cpp_properties.json file from .vccode
• Add the OpenCV lib path: /usr/local/Cellar/opencv/4.5.2_4/include/opencv4/** ( In my case)