머릿말

나중에 다시 컴파일할 때 참고하려고 만들음

부정확한 내용이 있을 수 있음.

Prerequisite

sudo apt install libgtk2.0-dev pkg-config cmake -y

OpenCV cmake

주요 lib

• BUILD_opencv_world=ON
  하나의 libopencv_world.so 혹은 opencv_world.dll 파일로 여러 라이브러리 파일들을 묶어줌.
• OPENCV_ENABLE_NONFREE=ON
  non-free 알고리즘들(특허 등으로 인해. opencv-contrib의 함수들... ximgproc 등? 사용 가능).
  OPENCV_EXTRA_MODULES_PATH 설정해줄 필요가 생김
• WITH_QT=ON
  QT...
• WITH_TBB=ON
  opencv 내부 함수들 병렬화랑 연관 있다는듯?
• WITH_OPENMP=ON
  openmp 사용
• WITH_GTK=ON
  ...

common

cmake -D CMAKE_BUILD_TYPE=RELEASE \
    -D CMAKE_INSTALL_PREFIX=/usr/local \
    -D OPENCV_ENABLE_NONFREE=ON \
    -D BUILD_opencv_world=ON \
    -D BUILD_JPEG=ON \
    -D BUILD_PNG=ON \
    -D BUILD_TIFF=ON \
    -D WITH_CUDA=OFF \
    -D WITH_IPP=OFF \
    -D WITH_QT=OFF \
    -D WITH_OPENMP=ON \
    -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_TESTS=OFF \
    -D BUILD_PERF_TESTS=OFF \
    -D WITH_GTK=ON \
    -D WITH_OPENGL=ON \
    -D OPENCV_EXTRA_MODULES_PATH=../../opencv_contrib-3.4.10/modules \
    -D WITH_V4L=ON  \
    -D WITH_FFMPEG=ON \
    -D WITH_XINE=ON \
    -D BUILD_NEW_PYTHON_SUPPORT=ON \
    -D OPENCV_GENERATE_PKGCONFIG=ON ../

CUDA

-D WITH_CUDA=ON \
-D ENABLE_FAST_MATH=1 \
-D CUDA_FAST_MATH=1 \
-D WITH_CUBLAS=1 \

을 추가.

Multiple Versions

https://answers.opencv.org/question/65178/install-multiple-versions-of-opencv-on-ubuntu/

jetson TX2

여전히 멀티코어링이 잘 안됐음. Jetson 자체를 업데이트 해야했을듯?

cmake -DOPENCV_EXTRA_MODULES_PATH=../../opencv_contrib-4.2.0/modules \
        -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local \
        -D WITH_CUDA=ON -D CUDA_ARCH_BIN="6.2" -D CUDA_ARCH_PTX="" \
        -D WITH_CUBLAS=ON -D ENABLE_FAST_MATH=ON -D CUDA_FAST_MATH=ON \
        -D ENABLE_NEON=ON -D WITH_LIBV4L=ON -D BUILD_TESTS=OFF \
        -D BUILD_PERF_TESTS=OFF -D BUILD_EXAMPLES=OFF \
        -D WITH_QT=OFF -D WITH_OPENGL=ON -D WITH_GTK=ON \
        -D WITH_OPENMP=ON -D WITH_PROTOBUF=OFF \
        -D WITH_TBB=ON -D BUILD_TBB=ON \
        ..

2.4.13.6

DERS 할 때 씀

cmake -D CMAKE_BUILD_TYPE=RELEASE \
    -D CMAKE_INSTALL_PREFIX=/usr/local \
    -D OPENCV_ENABLE_NON_FREE=ON \
    -D BUILD_JPEG=ON \
    -D BUILD_PNG=ON \
    -D BUILD_TIFF=ON \
    -D WITH_CUDA=OFF \
    -D WITH_IPP=OFF \
    -D WITH_QT=OFF \
    -D WITH_OPENMP=ON \
    -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=OFF \
    -D BUILD_EXAMPLES=OFF \
    -D BUILD_TESTS=OFF \
    -D BUILD_PERF_TESTS=OFF \
    -D WITH_GTK=ON \
    -D WITH_OPENGL=ON \
    -D WITH_V4L=OFF  \
    -D WITH_FFMPEG=ON \
    -D WITH_XINE=ON \
    -D WITH_JAVA=OFF \
    -D BUILD_JAVA=OFF \
    -D WITH_VTK=ON \
    -D BUILD_opencv_viz=ON \
    -D OPENCV_GENERATE_PKGCONFIG=ON ../