modules/nonfree/test/test_keypoints.cpp

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  41
  42 #include "test_precomp.hpp"
  43 #include "opencv2/highgui.hpp"
  44
  45 using namespace std;
  46 using namespace cv;
  47
  48 const string FEATURES2D_DIR = "features2d";
  49 const string IMAGE_FILENAME = "tsukuba.png";
  50
  51 /****************************************************************************************\
  52 *                                     Test for KeyPoint                                  *
  53 \****************************************************************************************/
  54
  55 class CV_FeatureDetectorKeypointsTest : public cvtest::BaseTest
  56 {
  57 public:
  58     CV_FeatureDetectorKeypointsTest(const Ptr<FeatureDetector>& _detector) :
  59         detector(_detector) {}
  60
  61 protected:
  62     virtual void run(int)
  63     {
  64         cv::initModule_features2d();
  65         CV_Assert(detector);
  66         string imgFilename = string(ts->get_data_path()) + FEATURES2D_DIR + "/" + IMAGE_FILENAME;
  67
  68         // Read the test image.
  69         Mat image = imread(imgFilename);
  70         if(image.empty())
  71         {
  72             ts->printf(cvtest::TS::LOG, "Image %s can not be read.\n", imgFilename.c_str());
  73             ts->set_failed_test_info(cvtest::TS::FAIL_INVALID_TEST_DATA);
  74             return;
  75         }
  76
  77         vector<KeyPoint> keypoints;
  78         detector->detect(image, keypoints);
  79
  80         if(keypoints.empty())
  81         {
  82             ts->printf(cvtest::TS::LOG, "Detector can't find keypoints in image.\n");
  83             ts->set_failed_test_info(cvtest::TS::FAIL_INVALID_OUTPUT);
  84             return;
  85         }
  86
  87         Rect r(0, 0, image.cols, image.rows);
  88         for(size_t i = 0; i < keypoints.size(); i++)
  89         {
  90             const KeyPoint& kp = keypoints[i];
  91
  92             if(!r.contains(kp.pt))
  93             {
  94                 ts->printf(cvtest::TS::LOG, "KeyPoint::pt is out of image (x=%f, y=%f).\n", kp.pt.x, kp.pt.y);
  95                 ts->set_failed_test_info(cvtest::TS::FAIL_INVALID_OUTPUT);
  96                 return;
  97             }
  98
  99             if(kp.size <= 0.f)
 100             {
 101                 ts->printf(cvtest::TS::LOG, "KeyPoint::size is not positive (%f).\n", kp.size);
 102                 ts->set_failed_test_info(cvtest::TS::FAIL_INVALID_OUTPUT);
 103                 return;
 104             }
 105
 106             if((kp.angle < 0.f && kp.angle != -1.f) || kp.angle >= 360.f)
 107             {
 108                 ts->printf(cvtest::TS::LOG, "KeyPoint::angle is out of range [0, 360). It's %f.\n", kp.angle);
 109                 ts->set_failed_test_info(cvtest::TS::FAIL_INVALID_OUTPUT);
 110                 return;
 111             }
 112         }
 113         ts->set_failed_test_info(cvtest::TS::OK);
 114     }
 115
 116     Ptr<FeatureDetector> detector;
 117 };
 118
 119
 120 // Registration of tests
 121
 122 TEST(Features2d_Detector_Keypoints_SURF, validation)
 123 {
 124     CV_FeatureDetectorKeypointsTest test(Algorithm::create<FeatureDetector>("Feature2D.SURF"));
 125     test.safe_run();
 126 }
 127
 128 TEST(Features2d_Detector_Keypoints_SIFT, validation)
 129 {
 130     CV_FeatureDetectorKeypointsTest test(FeatureDetector::create("SIFT"));
 131     test.safe_run();
 132 }