打开CV ERR_NEED_MORE_IMGS

Question

我正在努力将Open CV图像拼接实现到我的IOS应用程序中。我正在使用Xcode 7.1。我遇到的问题是我将stitcher :: Stitch传递给一个包含3个图像的数组，以便拼接图像，但它返回的状态代码为：ERR_NEED_MORE_IMGS。我不确定我做错了什么，这是我的代码：

+(UIImage *) stitchImages:(UIImage *)image :(UIImage *) imageTwo :(UIImage *) imageThree
{

cv::Mat matImageOne;
cv::Mat matImageTwo;
cv::Mat matImageThree;
cv::Mat imgOut;

cv::Stitcher stitcher = cv::Stitcher::createDefault(TRUE);
std::vector<cv::Mat> images;

UIImage *panoImage;

UIImageToMat(image, matImageOne);
UIImageToMat(imageTwo, matImageTwo);
UIImageToMat(imageThree, matImageThree);

matImageOne = cv::Mat::zeros(matImageOne.size(), CV_8UC3);
matImageTwo = cv::Mat::zeros(matImageTwo.size(), CV_8UC3);
matImageThree = cv::Mat::zeros(matImageThree.size(), CV_8UC3);

images.push_back(matImageOne);
images.push_back(matImageTwo);
images.push_back(matImageThree);

cv::Stitcher::Status status = stitcher.stitch(images, imgOut);

if(status == cv::Stitcher::Status::OK) { //Here the status is being returned as ERR_NEED_MORE_IMGS

    return MatToUIImage(imgOut);
}
else{
    return 0;
}
return image;
}

当您使用此ulr时，我使用的图像是前2个图像：https://ramsrigoutham.com/2012/11/22/panorama-image-stitching-in-opencv/ Thanx提前！