OpenCV Stitching

我迫切需要OpenCV缝合模块的帮助。我需要使用OpenCV中的"针迹"方法创建全景摄影。下面是我到目前为止所拥有的。但是，当我运行程序时，我会收到此错误：需要更多图像。有没有OPENCV专家可以帮助我解决此错误？

IplImage* img1 = cvLoadImage("/Users/myName/Desktop/image1.jpg", CV_LOAD_IMAGE_COLOR);
IplImage* img2 = cvLoadImage("/Users/myName/Desktop/image2.jpg", CV_LOAD_IMAGE_COLOR);
Mat vecImg1 = img1;
Mat vecImg2 = img2;
Mat allImages;
allImages.push_back(vecImg1);
allImages.push_back(vecImg2);
Mat outputImage;
Stitcher stitchImg = Stitcher::createDefault();
Stitcher::Status s = stitchImg.stitch(allImages, outputImage);
cout << "status: " << s << endl;
cvNamedWindow("stitch images", CV_WINDOW_AUTOSIZE);
cvShowImage("stitch images", &outputImage);
cvWaitKey(0);
cvDestroyWindow("stitch images");