private static void Surf(IplImage img1, IplImage img2) { Mat src = new Mat(img1, true); Mat src2 = new Mat(img2, true); //Detect the keypoints and generate their descriptors using SURF SURF surf = new SURF(500, 4, 2, true); KeyPoint[] keypoints1, keypoints2; MatOfFloat descriptors1 = new MatOfFloat(); MatOfFloat descriptors2 = new MatOfFloat(); surf.Run(src, null, out keypoints1, descriptors1); surf.Run(src2, null, out keypoints2, descriptors2); // Matching descriptor vectors with a brute force matcher BFMatcher matcher = new BFMatcher(NormType.L2, false); DMatch[] matches = matcher.Match(descriptors1, descriptors2);//例外が発生する箇所 Mat view = new Mat(); Cv2.DrawMatches(src, keypoints1, src2, keypoints2, matches, view); Window.ShowImages(view); }