#ifdef HAVE_OPENCV_XFEATURES2D #include "opencv2/xfeatures2d.hpp" using namespace cv::xfeatures2d; typedef DAISY::NormalizationType DAISY_NormalizationType; typedef AKAZE::DescriptorType AKAZE_DescriptorType; typedef AgastFeatureDetector::DetectorType AgastFeatureDetector_DetectorType; typedef KAZE::DiffusivityType KAZE_DiffusivityType; #endif