将 uint64_t 转换为 cv::mat

Question

我有：

 std::vector<cv::KeyPoint> keypoints;
    uint64_t* desc = new uint64_t[8 * keypoints.size()];    
    cv::Mat test = (keypoints.size(), 8, CV_8UC1, desc);

那是行不通的。我错过了什么？

错误信息是：不存在合适的构造函数来将 "uint64_t *" 转换为 "cv::Mat" 和 "Cannot initialize local variable test of type cv::Mat with lvalue of type unsigned long long" 谢谢

Answer 1

您调用 cv::Mat 构造函数的语法不正确，请尝试：

cv::Mat test(keypoints.size(), 8, CV_8UC1, desc);

将 uint64_t 转换为 cv::mat

Convert uint64_t to cv::mat

opencv

type-conversion

uint64

opencv-mat