message: mser: add a couple of new regression tests
diff: @@ -159,3 +159,26 @@ TEST(Features2d_MSER, cases)
  ASSERT_GE(maxRegs, nmsers);
  }
  }
  +
  +TEST(Features2d_MSER, history_update_regression)
  +{
  + String dataPath = cvtest::TS::ptr()->get_data_path() + "mser/";
  + vector<Mat> tstImages;
  + tstImages.push_back(imread(dataPath + "mser_test.png", IMREAD_GRAYSCALE));
  + tstImages.push_back(imread(dataPath + "mser_test2.png", IMREAD_GRAYSCALE));
  +
  + for(size_t j = 0; j < tstImages.size(); j++)
  + {
  + size_t previous_size = 0;
  + for(int minArea = 100; minArea > 10; minArea--)
  + {
  + Ptr<MSER> mser = MSER::create(1, minArea, (int)(tstImages[j].cols * tstImages[j].rows * 0.2));
  + mser->setPass2Only(true);
  + vector<vector<Point> > mserContours;
  + vector<Rect> boxRects;
  + mser->detectRegions(tstImages[j], mserContours, boxRects);
  + ASSERT_LE(previous_size, mserContours.size());
  + previous_size = mserContours.size();
  + }
  + }
  +}
  