message: Added performance test for nearest neighbor resize
diff: @@ -120,3 +120,31 @@ PERF_TEST_P(MatInfo_Size_Scale_Area, ResizeArea,
  //difference equal to 1 is allowed because of different possible rounding modes: round-to-nearest vs bankers' rounding
  SANITY_CHECK(dst, 1);
  }
  +
  +typedef MatInfo_Size_Scale_Area MatInfo_Size_Scale_NN;
  +
  +PERF_TEST_P(MatInfo_Size_Scale_NN, ResizeNN,
  + testing::Combine(
  + testing::Values(CV_8UC1, CV_8UC2, CV_8UC4),
  + testing::Values(szVGA, szqHD, sz720p, sz1080p, sz2160p),
  + testing::Values(2.4, 3.4, 1.3)
  + )
  +)
  +{
  + int matType = get<0>(GetParam());
  + Size from = get<1>(GetParam());
  + double scale = get<2>(GetParam());
  +
  + cv::Mat src(from, matType);
  +
  + Size to(cvRound(from.width * scale), cvRound(from.height * scale));
  + cv::Mat dst(to, matType);
  +
  + declare.in(src, WARMUP_RNG).out(dst);
  + declare.time(100);
  +
  + TEST_CYCLE() resize(src, dst, dst.size(), 0, 0, INTER_NEAREST);
  +
  + EXPECT_GT(countNonZero(dst.reshape(1)), 0);
  + SANITY_CHECK_NOTHING();
  +}
  