OpenCV 개발환경 세팅

Baseline

infinity@infinity-ubuntu:~$ lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 20.04.5 LTS
Release:	20.04
Codename:	focal

 

OpenCV Dependencies

1. Ubuntu repo update/upgrade

sudo apt-get update && sudo apt-get upgrade

2. Install cmake

sudo apt-get install build-essential cmake

3. Install pkg-config

sudo apt-get install pkg-config

4. Extra dependencies

sudo apt-get install libjpeg-dev libtiff5-dev libpng-dev
sudo apt-get install ffmpeg libavcodec-dev libavformat-dev libswscale-dev libxvidcore-dev libx264-dev libxine2-dev
sudo apt-get install libv4l-dev v4l-utils
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

 

Install OpenCV

1. Download OpenCV source / OpenCV contrib

cd ~
mkdir opencv
cd opencv
wget -O opencv.zip https://github.com/opencv/opencv/archive/4.4.0.zip
wget -O opencv_contrib.zip https://github.com/opencv/opencv_contrib/archive/4.4.0.zip

2. Unzip

unzip opencv.zip
unzip opencv_contrib.zip

3. cmake Config OpenCV compile settings

cd opencv-4.4.0
mkdir build
cd build
cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D WITH_TBB=OFF -D WITH_IPP=OFF -D WITH_1394=OFF -D BUILD_WITH_DEBUG_INFO=OFF -D BUILD_DOCS=OFF -D INSTALL_C_EXAMPLES=ON -D INSTALL_PYTHON_EXAMPLES=ON -D BUILD_EXAMPLES=OFF -D BUILD_PACKAGE=OFF -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=OFF -D WITH_QT=OFF -D WITH_GTK=ON -D WITH_OPENGL=ON -D BUILD_opencv_python3=ON -D OPENCV_EXTRA_MODULES_PATH=../../opencv_contrib-4.4.0/modules -D WITH_V4L=ON  -D WITH_FFMPEG=ON -D WITH_XINE=ON -D OPENCV_ENABLE_NONFREE=ON -D BUILD_NEW_PYTHON_SUPPORT=ON -D OPENCV_SKIP_PYTHON_LOADER=ON -D OPENCV_GENERATE_PKGCONFIG=ON ../

Mac OS 에서 zlib 관련 오류시 옵션 추가

 -D BUILD_ZLIB=OFF

4. compile

make

5. install

sudo make install

 

python3 import cv2 version check

infinity@infinity-ubuntu:~$ python3
Python 3.8.10 (default, Nov 14 2022, 12:59:47) 
[GCC 9.4.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import cv2
>>> print(cv2.__version__)
4.4.0
>>> exit()