opencv如何打印长图？

Posted 2020-11-07 學海無涯

cv::Mat longMap(std::vector<cv::Mat> &set)
{
    int matNumber = set.size();
    int width = set[0].cols;
    int height = set[0].rows;
    cv::Mat bigMap(height,width * matNumber, CV_8UC3, cv::Scalar::all(0));
    int x = 0;
    int y = 0;

    cv::Mat imgROI;
    for (int i = 0;i < matNumber;i++)
    {
        x = i * width;
        imgROI = bigMap(cv::Rect(x, y, width, height));
        set[i].copyTo(imgROI);
    }
    return bigMap;
}