Opencv

安装方式

CUDA的安装：https://blog.youkuaiyun.com/zhang970187013/article/details/81012845
opencv的安装：一开始下载opencv3.4，在cmake成功之后，make一直报错，没找到修改的方法，改为下载最新的opencv4.1成功安装。

sudo apt-get install build-essential
sudo apt-get install python-dev python-numpy libtbb2 libtbb-dev libjpeg-dev libpng-dev libtiff-dev libjasper-dev libdc1394-22-dev
sudo apt-get install cmake git libgtk2.0-dev pkg-config
sudo apt-get install libavcodec-dev libavformat-dev libswscale-dev

下载opencv：https://github.com/opencv/opencv/archive/4.1.0.zip
下载之后解压文件
进入解压之后的文件夹，更改文件夹中的部分内容

cd opencv-4.1.0
gedit cmake/FindCUDA.cmake

将

unset(CUDA_nppi_LIBRARY CACHE)

更改为

unset(CUDA_nppial_LIBRARY CACHE) 
unset(CUDA_nppicc_LIBRARY CACHE)
unset(CUDA_nppicom_LIBRARY CACHE) 
unset(CUDA_nppidei_LIBRARY CACHE) 
unset(CUDA_nppif_LIBRARY CACHE)
unset(CUDA_nppig_LIBRARY CACHE)
unset(CUDA_nppim_LIBRARY CACHE)
unset(CUDA_nppist_LIBRARY CACHE)
unset(CUDA_nppisu_LIBRARY CACHE) 
unset(CUDA_nppitc_LIBRARY CACHE)

将

find_cuda_helper_libs(nppi)
set(CUDA_npp_LIBRARY"${CUDA_nppc_LIBRARY};${CUDA_nppi_LIBRARY};${CUDA_npps_LIBRARY}")

更改为

find_cuda_helper_libs(nppial)
find_cuda_helper_libs(nppicc) 
find_cuda_helper_libs(nppicom) 
find_cuda_helper_libs(nppidei) 
find_cuda_helper_libs(nppif) 
find_cuda_helper_libs(nppig) 
find_cuda_helper_libs(nppim) 
find_cuda_helper_libs(nppist)
find_cuda_helper_libs(nppisu)
find_cuda_helper_libs(nppitc) 
set(CUDA_npp_LIBRARY "${CUDA_nppc_LIBRARY};${CUDA_nppial_LIBRARY};${CUDA_nppicc_LIBRARY};${CUDA_nppicom_LIBRARY};${CUDA_nppidei_LIBRARY};${CUDA_nppif_LIBRARY};${CUDA_nppig_LIBRARY};${CUDA_nppim_LIBRARY};${CUDA_nppist_LIBRARY};${CUDA_nppisu_LIBRARY};${CUDA_nppitc_LIBRARY};${CUDA_npps_LIBRARY}")

然后进行编译

mkdir release cd release cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local .. 
make -j7 #此处看您的cpu内核数，本人机器8核 
sudo make install

使用该方法安装结束之后，我们可以在python中调用opencv，但是使用

pkg-config --modversion opencv

查询版本报错