CUDA를 지원하는 경우 CUDA설치하기 항목을 참조하여 설치

Opencv 4.5.5

~~https://gist.github.com/raulqf/f42c718a658cddc16f9df07ecc627be7 참조~~

https://velog.io/@minukiki/Ubuntu-20.04에-OpenCV-4.4.0-설치 참조

다음을 입력하여 opencv 설치 여부 확인

$ pkg-config --modversion opencv

패키지 설치

$ sudo apt-get install build-essential cmake
$ sudo apt-get install libopenexr-dev
$ sudo apt-get install libjpeg-dev libtiff5-dev libpng-dev
$ sudo apt-get install libv4l-dev v4l-utils
$ sudo apt-get install ffmpeg libavcodec-dev libavformat-dev libswscale-dev libxvidcore-dev libx264-dev libxine2-dev
$ sudo apt-get install libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev
$ sudo apt-get install libgtk-3-dev
$ sudo apt-get install mesa-utils libgl1-mesa-dri libgtkgl2.0-dev libgtkglext1-dev
$ sudo apt-get install libatlas-base-dev gfortran libeigen3-dev
$ sudo apt-get install python3-dev python3-numpy

opencv 폴더 생성 및 파일 복사

$ mkdir opencv
$ cd opencv
$ wget -O opencv.zip <https://github.com/opencv/opencv/archive/4.5.5.zip>
$ unzip opencv.zip

opencv_contrib 소스코드 다운로드

$ wget -O opencv_contrib.zip [<https://github.com/opencv/opencv_contrib/archive/4.5.5.zip>](<https://github.com/opencv/opencv_contrib/archive/4.4.0.zip>)
$ unzip opencv_contrib.zip

CMAKE

opencv-4.5.5 디렉토리로 이동하여 build 디렉토리를 만들고 이동