// hog is a hog descriptor of the image (calculated by hog.compute. size is 3780 )
// hue is a histogram of the image, (calcHist(), is a Mat with (width x height) 64 x 45)
std::pair<std::vector<double>, cv::Mat> features;
// hog is a hog descriptor of the image (calculated by hog.compute. size is 3780 )
// hue is a histogram of the image, (calcHist(), is a Mat with (width x height) 64 x 45)
std::pair<std::vector<double>, cv::Mat> features;