代码来自：http://www.cnblogs.com/CHLL55/p/4161551.html

#include <iostream>
#include <fstream>
#include <opencv2/core/core.hpp>
#include “opencv2/highgui/highgui.hpp”
#include “opencv2/stitching.hpp”
#include<Windows.h>

using namespace std;
using namespace cv;

bool try_use_gpu = false;
vector<Mat> imgs;
string result_name = “result.jpg”;

int main()
{
Mat img1 = imread(“1.jpg”);
Mat img2 = imread(“2.jpg”);
imgs.push_back(img2);
imgs.push_back(img1);
Mat pano;
Stitcher stitcher = Stitcher::createDefault(try_use_gpu);
Stitcher::Status status = stitcher.stitch(imgs, pano);
if (status != Stitcher::OK)
{
cout << “Can’t stitch images, error code = ” << status << endl;
return -1;
}
namedWindow(result_name);
imshow(result_name, pano);
imwrite(result_name, pano);
waitKey(30);
return 0;
}

经验：第一次使用，竟然就报错。正如代码中所示，stitch失败并返回错误代码1。根据经验直觉，将imgs.push_back()内的图像换了下顺序，原来是先扑img1后扑img2，改成先扑img2后扑img1，然后就能拼了。。。。can’t believe it。有空了在深究代码实现方式和原理。。。