Ubuntu下安装OpenCV的相关记录

1、安装OpenCV所需要的库

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

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2、从官网下载OpenCV源码

http://sourceforge.net/projects/opencvlibrary/

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3、编译OpenCV

• 1 使用unzip命令解压
• 2 创建编译目录，编译
  cd ~/opencv-3.0.0-rc1
  mkdir release
  cd release
  cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local ..
  make
  sudo make install

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4、测试OpenCV

• 1 创建工作目录
  mkdir ~/opencv-lena
  cd ~/opencv-lena
  gedit DisplayImage.cpp
• 2 写入测试代码
  #include
  #include
  using namespace cv;
  int main(int argc, char** argv ) {
  if ( argc != 2 ) {
  printf("usage: DisplayImage.out \n");
  return -1;
  }
  Mat image;
  image = imread( argv[1], 1 );
  if ( !image.data ) {
  printf("No image data \n");
  return -1;
  }
  namedWindow("Display Image", WINDOW_AUTOSIZE );
  imshow("Display Image", image);
  waitKey(0);
  return 0;
  }
• 3 创建CMake编译文件
  gedit CMakeLists.txt
  写入如下代码
  cmake_minimum_required(VERSION 2.8)
  project( DisplayImage )
  find_package( OpenCV REQUIRED )
  add_executable( DisplayImage DisplayImage.cpp )
  target_link_libraries( DisplayImage ${OpenCV_LIBS} )
• 4 编译
  首先进到文件目录，然后输入
  cmake .
make
• 5 运行
  如果编译成功，文件目录下已经生成可执行性文件，记得图片要放在文件夹下（或指明路径），然后运行
  ./DisplayImage lena.jpg