如何编译OpenCV使能Cuda

卸载软件库预装OpenCV

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sudo apt-get purge libopencv*

装个新的

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  mkdir opencv_with_Cuda
  cd opencv_with_Cuda
  git clone https://github.com/opencv/opencv.git
  cd opencv
  git checkout -b 3.4.3
  

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  cd ..
  git clone https://github.com/opencv/opencv_contrib.git
  cd opencv_contrib
  git checkout -b 3.4.3
  

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  cd ../opencv
  mkdir build
  cd build
  #cmake
  cmake -D CMAKE_BUILD_TYPE=RELEASE -D INSTALL_C_EXAMPLES=ON -D INSTALL_PYTHON_EXAMPLES=ON -D OPENCV_EXTRA_MODULES_PATH=../../opencv_contrib/modules -D BUILD_EXAMPLES=ON -D BUILD_opencv_python2=OFF -D BUILD_opencv_python3=ON -D WITH_FFMPEG=ON -D WITH_LIBV4L=ON -D WITH_GTK=ON -D WITH_OPENGL=ON -D WITH_ZLIB=ON -D BUILD_PNG=ON -D BUILD_JPEG=ON -D BUILD_TIFF=ON -D WITH_CUDA=ON -D WITH_OPENCL=ON -D ENABLE_FAST_MATH=1 -D CUDA_FAST_MATH=1 -D WITH_CUBLAS=1 -D WITH_LAPACK=OFF -DCMAKE_INSTALL_PREFIX=/usr/local -D PYTHON3_EXECUTABLE=$(which python) -D PYTHON3_INCLUDE_DIR=$(python -c "from distutils.sysconfig import get_python_inc; print(get_python_inc())") -DPYTHON3_PACKAGES_PATH=$(python -c "from distutils.sysconfig import get_python_lib; print(get_python_lib())") ..
  #cmake完以后看一下CUDA和python3的相关输出，有可能python3会没有显示，不影响，CUDA处的参数一定要是YES
  make -j8
  sudo make install
  

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