opencv 4.5.0 설치

1. 필요한 종속성 설치

$ sudo apt-get update
$ sudo apt-get install build-essential cmake gcc g++ git unzip pkg-config
$ sudo apt-get install libjpeg-dev libpng-dev libtiff-dev libavcodec-dev libavformat-dev libswscale-dev libgtk2.0-

 

2. opencv 와 opencv_contrib 빌드

$ cd ~
$ wget -O opencv.zip https://github.com/opencv/opencv/archive/4.5.0.zip
$ wget -O opencv_contrib.zip https://github.com/opencv/opencv_contrib/archive/4.5.0.zip

$ unzip opencv.zip
$ unzip opencv_contrib.zip

$ mv opencv-4.5.0 opencv
$ mv opencv_contrib-4.5.0 opencv_contrib

 

3. 컴파일을 위한 임시 폴더 build 만들기

$ cd opencv
$ mkdir build

 

4. cmake

$ cd build
$ cmake -D CMAKE_BUILD_TYPE=Release \
-D CMAKE_INSTALL_PREFIX=/usr/local \
-D BUILD_WITH_DEBUG_INFO=OFF \
-D BUILD_EXAMPLES=OFF \
-D BUILD_opencv_python3=ON \
-D INSTALL_PYTHON_EXAMPLES=ON \
-D OPENCV_ENABLE_NONFREE=ON \
-D OPENCV_EXTRA_MODULES_PATH=~/opencv_contrib/modules \
-D OPENCV_GENERATE_PKGCONFIG=ON \
-D WITH_TBB=ON \
-D WITH_FFMPEG=ON \
-D WITH_XINE=ON \
-D BUILD_NEW_PYTHON_SUPPORT=ON \
-D BUILD_TESTS=OFF \
-D BUILD_PERF_TESTS=OFF ..

 

5. 컴파일

$ cd ~/opencv/build
$ make -j2
$ sudo make install

$ sudo ldconfig
$ make clean

$ sudo apt-get update

how many core?
$ grep ^processor /proc/cpuinfo | wc -l

 

6. 추가적인 종속성 설치

$ sudo apt install ros-noetic-image-transport ros-noetic-image-transport-plugins ros-noetic-cv-bridge ros-noetic-vision-opencv python3-opencv libopencv-dev ros-noetic-image-proc ros-noetic-cv-camera ros-noetic-camera-calibration