#include <iostream>
#include <vector>
#include <string>
#include <opencv2/imgcodecs.hpp>

#if CV_MINOR_VERSION >= 8
#include <opencv2/objdetect/barcode.hpp>
#else
#include <opencv2/barcode.hpp>
#endif

std::vector<std::string> read(const cv::Mat &image)
{
    cv::barcode::BarcodeDetector detector;
    std::vector<cv::Point> corners;
#if CV_MINOR_VERSION >= 8
    std::vector<std::string> decode_info;
    std::vector<std::string> decoded_type;
    detector.detectAndDecodeWithType(image, decode_info, decoded_type, corners);
#else
    std::vector<cv::String> decode_info;
    std::vector<cv::barcode::BarcodeType> decoded_type;
    detector.detectAndDecode(image, decode_info, decoded_type, corners);
#endif

    return decode_info;
}

int main() {
    auto img = cv::imread("foo.png", cv::IMREAD_GRAYSCALE);

    for (const auto& res : read(img))
    {
        std::cout << res << std::endl;
    }
    return 0;
}