1.opencv之显示图片

程序来源：F:\opencv\opencv\samples\cpp\tutorial_code\introduction\display_image（opencv自带的例子）

程序：

#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <iostream>

using namespace cv;
using namespace std;

int main( int argc, char** argv )
{
    if( argc != 2)
    {
     cout <<" Usage: display_image ImageToLoadAndDisplay" << endl;
     return -1;
    }

    Mat image;
    image = imread(argv[1], CV_LOAD_IMAGE_COLOR);	// Read the file

    if(! image.data )                              // Check for invalid input
    {
        cout <<  "Could not open or find the image" << std::endl ;
        return -1;
    }

    namedWindow( "Display window", CV_WINDOW_AUTOSIZE );// Create a window for display.
    imshow( "Display window", image );                   // Show our image inside it.

    waitKey(0);											 // Wait for a keystroke in the window
    return 0;
}

运行结果：

注意点：

1.需要在命令行输入参数：（参见：http://blog.youkuaiyun.com/zeroyl/article/details/8902231）

2.在配置属性-->[链接器]的[输入]中,为项目的Debug配置增加 [附加依赖项 Additional Dependencies]：