linux+cmake+opencv+运行

参考：http://blog.csdn.net/lanbing510/article/details/41698517

http://www.cnblogs.com/emouse/archive/2013/02/22/2922940.html

http://blog.csdn.net/beechina/article/details/51283977

一、安装

1 安装cmake及一些依赖库

sudo apt-get install cmake
sudo apt-get install build-essential libgtk2.0-dev libavcodec-dev libavformat-dev libjpeg.dev libtiff4.dev libswscale-dev libjasper-dev

2 安装opencv

下载地址：http://www.opencv.org.cn/index.php/Download  opencv-3.3.0.zip

unzip opencv-3.3.0.zip

#cmake-gui

configure & generate

到opencv-x86文件夹下（编译文件夹）

sudo make

sudo make install

二、配置

1 将opencv的库加入到路径，从而让系统可以找到

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

末尾加入/usr/local/lib，保存退出

sudo ldconfig #使配置生效

sudo gedit /etc/bash.bashrc 

末尾加入

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

export PKG_CONFIG_PATH

保存退出

sudo source /etc/bash.bashrc  #使配置生效
sudo updatedb #更新database

三. 运行程序

用cmake, 创建 CMakeList.txt , 加入以下内容，注意红色部分那一行：

cmake_minimum_required(VERSION 2.8)

project( hello )

set(OpenCV_DIR /path/to/opencv-x86/ ) 

find_package( OpenCV REQUIRED )

include_directories( ${OpenCV_INCLUDE_DIRS} )

add_executable( hello hello.cpp )

target_link_libraries( hello ${OpenCV_LIBS} )