[C++, OpenCV] Wczytanie std::string do klasy cv::Mat

Witam. Mam histogram w stringu i chcę go przekazać do zmiennej Mat. Jak to można zrobić ??

Może poszukasz troszkę?
Kilka kliknięć w google: http://stackoverflow.com​/questions/13705578​/convert-a-string-of-bytes-to-cvmat

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OpenCV Mat has a constructor from vector<byte>, but this is not so intuitive. You need to convert from string to vector this way first:[ C/C++ std::vector < byte > vectordata( data.begin(), data.end() ); Then you can create a cv::Mat from the vector: C/C++ cv::Mat data_mat( vectordata, true ); You also need to decode the image (check documentation for which types are allowed, png, jpg, depending on the OpenCV version) C/C++ cv::Mat image( cv::imdecode( data_mat, 1 ) ); //put 0 if you want greyscale Now you can check if the resulting size of the image is the same as the one you sent: C/C++ cout << "Height: " << image.rows << " Width: " << image.cols << endl;