Linux(debian10)安装opencv3.2.0教程

opencv3.2.0安装

安装opencv前需要安装一些依赖库，命令如下：

sudo apt-get update
sudo apt-get install build-essential

sudo apt-get install git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev

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 libavcodec-dev libavformat-dev libswscale-dev libv4l-dev liblapacke-dev

sudo apt-get install libxvidcore-dev libx264-dev 
sudo apt-get install libatlas-base-dev gfortran
sudo apt-get install ffmpeg

解压opencv-3.2.0.zip，并进入opencv-3.2.0文件夹，命令如下：

unzip opencv-3.2.0.zip
cd opencv-3.2.0
mkdir build
cd build
cmake ..
make -j4
sudo make install

在执行make -j4命令后，如果出现以下报错：

error: ‘CODEC_FLAG_GLOBAL_HEADER’ was not declared in this scope

error: ‘AVFMT_RAWPICTURE’ was not declared in this scope

则在 opencv-3.2.0/modules/videoio/src/cap_ffmpeg_impl.hpp 里最顶端添加：

#define AV_CODEC_FLAG_GLOBAL_HEADER (1 << 22)
#define CODEC_FLAG_GLOBAL_HEADER AV_CODEC_FLAG_GLOBAL_HEADER
#define AVFMT_RAWPICTURE 0x0020

之后继续在opencv-3.2.0/build/目录下继续执行命令：

make -j4
sudo make install