编译安装opencv with cuda

卸载自带opencv

sudo apt-get purge libopencv*
sudo apt autoremove
sudo apt-get update

获取opencv源码

# Install minimal prerequisites (Ubuntu 18.04 as reference)
sudo apt update && sudo apt install -y cmake g++ wget unzip

# Download and unpack sources
wget -O opencv.zip https://github.com/opencv/opencv/archive/4.x.zip
wget -O opencv_contrib.zip https://github.com/opencv/opencv_contrib/archive/4.x.zip
unzip opencv.zip
unzip opencv_contrib.zip

# Create build directory and switch into it
mkdir -p build && cd build

# Configure
cmake -DOPENCV_EXTRA_MODULES_PATH=../opencv_contrib-4.x/modules ../opencv-4.x

# Build
cmake --build .

编译安装opencv

测试