Convert uint64_t to cv::mat

Question

what I have:

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

That does not work. What am I missing?

Error message is: no suitable constructor exists to convert from "uint64_t *" to "cv::Mat" and "Cannot initialize local variable test of type cv::Mat with lvalue of type unsigned long long" Thank you

Tell us what error you're seeing? Also, the first two arguments are the width and height of the image, unless you have an 8x8 pixel image, that's probably wrong. — ACVM, Apr 18 '18 at 21:05
Sorry, I have edited my question to reflect the actual code and added error messages. — Jacob, Apr 18 '18 at 21:12

score 0 · Accepted Answer · answered Apr 18 '18 at 21:16

0

Your syntax for calling the cv::Mat constructor is incorrect, try:

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

answered Apr 18 '18 at 21:16

ACVM

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Haha, you are right. I was looking for something complicated when it was really simple. Thank you. – Jacob Apr 18 '18 at 21:27

Convert uint64_t to cv::mat

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