Ubuntu15.10安装openCV2.4.9

opencv_默认不支持Cuda必须自己重新编译，opecv默认安装运行cuda会出现一下错误

会出现

OpencvError: no GPU support (libraryiscompiled without CUDA support)

再说一次注意opencv版本，可以使用2.4.12及以上版本

用2.4.9大约会在65%时报错

1 下载openCV

2 安装必要的包

sudo apt-get install build-essential cmake git libgtk2.0-dev pkg-config python-dev python-numpy libavcodec-dev libavformat-dev libswscale-dev

3 解压

unzip opencv-2.4.12.zip

4 创建release文件夹

cd opencv-2.4.12

mkdir release

5 编译opencv

cmake-DCMAKE_BUILD_TYPE=RELEASE-DCMAKE_INSTALL_PREFIX=/usr/local-DCUDA_GENERATION=Kepler..

(When using cmake to do configurations, set the option CUDA_GENERATION to specific your GPU architecture. 这使得cuda可以自适应自身的系统)

cd ..

make

sudo make install