--- /dev/null
+/**
+ * @file SURF_descriptor
+ * @brief SURF detector + descritpor + BruteForce Matcher + drawing matches with OpenCV functions
+ * @author A. Huaman
+ */
+
+#include <stdio.h>
+#include <iostream>
+#include "opencv2/core/core.hpp"
+#include "opencv2/features2d/features2d.hpp"
+#include "opencv2/highgui/highgui.hpp"
+
+using namespace cv;
+
+void readme();
+
+/**
+ * @function main
+ * @brief Main function
+ */
+int main( int argc, char** argv )
+{
+ if( argc != 3 )
+ { return -1; }
+
+ Mat img_1 = imread( argv[1], CV_LOAD_IMAGE_GRAYSCALE );
+ Mat img_2 = imread( argv[2], CV_LOAD_IMAGE_GRAYSCALE );
+
+ if( !img_1.data || !img_2.data )
+ { return -1; }
+
+ //-- Step 1: Detect the keypoints using SURF Detector
+ int minHessian = 400;
+
+ SurfFeatureDetector detector( minHessian );
+
+ std::vector<KeyPoint> keypoints_1, keypoints_2;
+
+ detector.detect( img_1, keypoints_1 );
+ detector.detect( img_2, keypoints_2 );
+
+ //-- Step 2: Calculate descriptors (feature vectors)
+ SurfDescriptorExtractor extractor;
+
+ Mat descriptors_1, descriptors_2;
+
+ extractor.compute( img_1, keypoints_1, descriptors_1 );
+ extractor.compute( img_2, keypoints_2, descriptors_2 );
+
+ //-- Step 3: Matching descriptor vectors with a brute force matcher
+ BruteForceMatcher< L2<float> > matcher;
+ std::vector< DMatch > matches;
+ matcher.match( descriptors_1, descriptors_2, matches );
+
+ //-- Draw matches
+ Mat img_matches;
+ drawMatches( img_1, keypoints_1, img_2, keypoints_2, matches, img_matches );
+
+ //-- Show detected matches
+ imshow("Matches", img_matches );
+
+ waitKey(0);
+
+ return 0;
+}
+
+/**
+ * @function readme
+ */
+void readme()
+{ std::cout << " Usage: ./SURF_descriptor <img1> <img2>" << std::endl; }
--- /dev/null
+/**
+ * @file SURF_detector
+ * @brief SURF keypoint detection + keypoint drawing with OpenCV functions
+ * @author A. Huaman
+ */
+
+#include <stdio.h>
+#include <iostream>
+#include "opencv2/core/core.hpp"
+#include "opencv2/features2d/features2d.hpp"
+#include "opencv2/highgui/highgui.hpp"
+
+using namespace cv;
+
+void readme();
+
+/**
+ * @function main
+ * @brief Main function
+ */
+int main( int argc, char** argv )
+{
+ if( argc != 3 )
+ { readme(); return -1; }
+
+ Mat img_1 = imread( argv[1], CV_LOAD_IMAGE_GRAYSCALE );
+ Mat img_2 = imread( argv[2], CV_LOAD_IMAGE_GRAYSCALE );
+
+ if( !img_1.data || !img_2.data )
+ { std::cout<< " --(!) Error reading images " << std::endl; return -1; }
+
+ //-- Step 1: Detect the keypoints using SURF Detector
+ int minHessian = 400;
+
+ SurfFeatureDetector detector( minHessian );
+
+ std::vector<KeyPoint> keypoints_1, keypoints_2;
+
+ detector.detect( img_1, keypoints_1 );
+ detector.detect( img_2, keypoints_2 );
+
+ //-- Draw keypoints
+ Mat img_keypoints_1; Mat img_keypoints_2;
+
+ drawKeypoints( img_1, keypoints_1, img_keypoints_1, Scalar::all(-1), DrawMatchesFlags::DEFAULT );
+ drawKeypoints( img_2, keypoints_2, img_keypoints_2, Scalar::all(-1), DrawMatchesFlags::DEFAULT );
+
+ //-- Show detected (drawn) keypoints
+ imshow("Keypoints 1", img_keypoints_1 );
+ imshow("Keypoints 2", img_keypoints_2 );
+
+ waitKey(0);
+
+ return 0;
+}
+
+/**
+ * @function readme
+ */
+void readme()
+{ std::cout << " Usage: ./SURF_detector <img1> <img2>" << std::endl; }