OpenCV编译与安装

1.安装依赖项

1. 1安装必备包

sudo apt-get install build-essential cmake libjpeg-dev libtiff5-dev libjasper-dev

1.1安装gtk

for opencv3.2 and above: 

sudo apt-get install libgtk-3-dev

for opencv2.4.x: 

 sudo apt-get install libgtk2.0-dev

1.2 安装v4l2

sudo apt-get install v4l2ucp v4l-utils libv4l-dev

1.3安装ffmpeg

sudo apt-get install libavcodec-dev libavformat-dev libswscale-dev libavutil-dev libavresample-dev

1.4安装gstreamer（for opencv3.2 and above）:

sudo apt-get install libgstreamer1.5-dev libgphoto2-dev

2. 编译

cd opencv2.4.13/build

linux:

cmake -DCMAKE_CXX_COMPILER=g++ -DCMAKE_BUILD_TYPE=RELEASE -DWITH_CUDA=ON -DCUDA_ARCH_PTX="" -DBUILD_TESTS=OFF -DBUILD_PERF_TESTS=OFF ..

arm：

cmake -DCMAKE_CXX_COMPILER=g++ -DCMAKE_BUILD_TYPE=RELEASE -DWITH_CUDA=ON -DCUDA_ARCH_PTX="" -DBUILD_TESTS=OFF -DBUILD_PERF_TESTS=OFF -DCUDA_GENERATION=Kepler ..

make -j4

sudo make install

3. 配置环境

3.1 打开/etc/ld.so.conf.d/opencv.conf，在末尾加入/usr/local/lib

sudo gedit /etc/ld.so.conf.d/opencv.conf

sudo ldconfig

3.2 编辑/etc/profile,

sudo gedit /etc/profile

追加

PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/usr/local/lib/pkgconfig
export PKG_CONFIG_PATH

使修改生效

source /etc/profile