linux 下面打开一张图片

Linux 下面打开一张图片并且进行显示，以及CMakeLists.txt 的使用 。

#include "opencv2/core/core.hpp"#include "opencv2/highgui/highgui.hpp"#include <stdio.h>using namespace cv;int main( int argc, char** argv ){    Mat image;    image = imread( argv[1]);    if( argc != 2 || !image.data ){        printf("没有图片\n");        return -1;    }    namedWindow( "显示图片", CV_WINDOW_AUTOSIZE );    imshow( "显示图片", image );    waitKey(0);    return 0;}

CMakeList.txt 的编写

cmake_minimum_required(VERSION 2.8)project( test )find_package( OpenCV REQUIRED )include_directories( ${OpenCV_INCLUDE_DIRS} )add_executable( test test.cpp )target_link_libraries( test ${OpenCV_LIBS} )

测试 

./test panda.jpg

写到这里为以后将 灰度图转换为伪彩色来进行显示先做一个铺垫