/*************************************************************************
    Can't stitch images, error code=1
 ************************************************************************/

#include<iostream>
#include<fstream>
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/stitching/stitcher.hpp"
using namespace std;
using namespace cv;
int main(void)
{
    string srcFile[3]={"./RawImage2/1.jpg","./RawImage2/2.jpg","./RawImage2/3.jpg"};     
        string dstFile="./RawImage2/result.jpg";     
        vector<Mat> imgs;
        for(int i=0;i<3;++i)     
        {          
             Mat img=imread(srcFile[i]);          
                 if (img.empty())          
                 {              
                              cout<<"Can't read image '"<<srcFile[i]<<"'\n";              
                                  system("pause");              
                                  return -1;           
                 }         
             imgs.push_back(img);     
         }
         cout<<"Please wait..."<<endl;     
        Mat pano;     
        Stitcher stitcher = Stitcher::createDefault(false);     
        Stitcher::Status status = stitcher.stitch(imgs, pano);
    if (status != Stitcher::OK)     
        {          
                cout<<"Can't stitch images, error code=" <<int(status)<<endl;          
                system("pause");         
                return -1;     
        }
        imwrite(dstFile, pano);    
        namedWindow("Result");     
        imshow("Result",pano);      
        waitKey(0);    
        destroyWindow("Result");
        system("pause");     
        return 0;
}

#include <iostream>
#include <opencv2\opencv.hpp>
using namespace cv;
using namespace std;
int main()
{
    VideoCapture cap1(0);
    VideoCapture cap2(1);
    if (!cap1.isOpened())
    {
        cout << "failed to open!\n";
        return -1;
    }
    if (!cap2.isOpened())
    {
        cout << "failed to open!\n";
        return -1;
    }
    const char* filename1 = "video1.avi";
    const char* filename2 = "video2.avi";
    double w = 640, h = 480;
    cap1.set(CAP_PROP_FRAME_HEIGHT, h);
    cap1.set(CAP_PROP_FRAME_WIDTH, w);
    cap2.set(CAP_PROP_FRAME_HEIGHT, h);
    cap2.set(CAP_PROP_FRAME_WIDTH, w);
    cvNamedWindow("Camera_1");
    cvNamedWindow("Camera_2");
    Mat frame1, frame2;
    VideoWriter writer1 = VideoWriter(filename1, -1, 25, frame1.size());
    VideoWriter writer2 = VideoWriter(filename2, -1, 25, frame2.size());
    while (1)
    {
        cap1 >> frame1;
        cap2 >> frame2;
        if (frame1.empty())
        {
            cout << "failed from cap1 to frame1!\n";
            return -1;
        }
        if (frame2.empty())
        {
            cout << "failed from cap2 to frame2!\n";
            return -1;
        }
        imshow("Camera_1", frame1);
        imshow("Camera_2", frame2);
        writer1 << frame1;
        writer2 << frame2;
        if (!writer1.isOpened())
        {
            cout << "failed from frame1 to writer1!\n";
            return -1;
        }
        if (!writer2.isOpened())
        {
            cout << "failed from frame2 to writer2!\n";
            return -1;
        }
        if (waitKey(30) == 27)
            break;
    }
    cout << "Done!\n";
}

//#include <cv.h>
//#include <highgui.h>
//#include <stdlib.h>
#include <iostream>
#include <opencv2\opencv.hpp>
using namespace cv;
using namespace std;
//#pragma comment(lib,"opencv_core245.lib")
//#pragma comment(lib,"opencv_highgui245.lib")
int main() {
    const  char* file[9] = { "E:\\3.jpg","E:\\3.jpg","E:\\3.jpg","E:\\3.jpg","E:\\3.jpg","E:\\3.jpg","E:\\3.jpg","E:\\3.jpg","E:\\3.jpg" };//9张原始图片    
    IplImage* pImg[9];
    int i;

    for (i = 0; i<9; ++i)
        pImg[i] = cvLoadImage(file[i]);

    int sw = pImg[0]->width;
    int sh = pImg[0]->height;
    IplImage* dstImg = cvCreateImage(cvSize(sw * 3, sh*3), pImg[0]->depth, pImg[0]->nChannels);

    cvZero(dstImg);
    printf("Please wait...\n");

    for (i = 0; i<3; ++i) 
    {
        for (int j = 0; j < 3; j++)
        {
            cvSetImageROI(dstImg, cvRect(i*sw, j*sh, sw, sh));
            cvCopy(pImg[i], dstImg);
            cvResetImageROI(dstImg);
            cout << (i+1)*(j+1) << " 张处理结束...\n";
        }
    }

    namedWindow("dstImg",WINDOW_NORMAL);
    cvShowImage("dstImg", dstImg);
    cvSaveImage("result1.jpg", dstImg);//拼接图片之一    

    cvWaitKey(0);

    for (i = 0; i<4; ++i)
        cvReleaseImage(&pImg[i]);

    cvReleaseImage(&dstImg);
    cvDestroyWindow("dstImg");
    system("pause");
    return 0;
}