text: #include "../perf_precomp.hpp"
  #include "opencv2/ts/ocl_perf.hpp"
  
  #ifdef HAVE_OPENCL
  
  namespace cvtest {
  
  namespace ocl {
  
  CV_ENUM(MethodType, TM_SQDIFF, TM_SQDIFF_NORMED, TM_CCORR, TM_CCORR_NORMED, TM_CCOEFF, TM_CCOEFF_NORMED)
  
  typedef std::tr1::tuple<Size, Size, MethodType, MatType> ImgSize_TmplSize_Method_MatType_t;
  typedef TestBaseWithParam<ImgSize_TmplSize_Method_MatType_t> ImgSize_TmplSize_Method_MatType;
  
  OCL_PERF_TEST_P(ImgSize_TmplSize_Method_MatType, MatchTemplate,
          ::testing::Combine(
              testing::Values(cv::Size(640, 480), cv::Size(1280, 1024)),
              testing::Values(cv::Size(11, 11), cv::Size(16, 16), cv::Size(41, 41)),
              MethodType::all(),
              testing::Values(CV_8UC1, CV_8UC3, CV_32FC1, CV_32FC3)
              )
          )
  {
      const ImgSize_TmplSize_Method_MatType_t params = GetParam();
      const Size imgSz = get<0>(params), tmplSz = get<1>(params);
      const int method = get<2>(params);
      int type = get<3>(GetParam());
  
      UMat img(imgSz, type), tmpl(tmplSz, type);
      UMat result(imgSz - tmplSz + Size(1, 1), CV_32F);
  
      declare.in(img, tmpl, WARMUP_RNG).out(result);
  
      OCL_TEST_CYCLE() matchTemplate(img, tmpl, result, method);
  
      bool isNormed =
          method == TM_CCORR_NORMED ||
          method == TM_SQDIFF_NORMED ||
          method == TM_CCOEFF_NORMED;
      double eps = isNormed ? 3e-2
          : 255 * 255 * tmpl.total() * 1e-4;
  
      SANITY_CHECK(result, eps, ERROR_RELATIVE);
  }
  
  /////////// matchTemplate (performance tests from 2.4) ////////////////////////
  
  typedef Size_MatType CV_TM_CCORRFixture;
  
  OCL_PERF_TEST_P(CV_TM_CCORRFixture, matchTemplate,
                  ::testing::Combine(::testing::Values(Size(1000, 1000), Size(2000, 2000)),
                                 OCL_PERF_ENUM(CV_32FC1, CV_32FC4)))
  {
      const Size_MatType_t params = GetParam();
      const Size srcSize = get<0>(params), templSize(5, 5);
      const int type = get<1>(params);
  
      UMat src(srcSize, type), templ(templSize, type);
      const Size dstSize(src.cols - templ.cols + 1, src.rows - templ.rows + 1);
      UMat dst(dstSize, CV_32F);
  
      declare.in(src, templ, WARMUP_RNG).out(dst);
  
      OCL_TEST_CYCLE() cv::matchTemplate(src, templ, dst, CV_TM_CCORR);
  
      SANITY_CHECK(dst, 1e-4);
  }
  
  typedef TestBaseWithParam<Size> CV_TM_CCORR_NORMEDFixture;
  
  OCL_PERF_TEST_P(CV_TM_CCORR_NORMEDFixture, matchTemplate,
                  ::testing::Values(Size(1000, 1000), Size(2000, 2000), Size(4000, 4000)))
  {
      const Size srcSize = GetParam(), templSize(5, 5);
  
      UMat src(srcSize, CV_8UC1), templ(templSize, CV_8UC1);
      const Size dstSize(src.cols - templ.cols + 1, src.rows - templ.rows + 1);
      UMat dst(dstSize, CV_8UC1);
  
      declare.in(src, templ, WARMUP_RNG).out(dst);
  
      OCL_TEST_CYCLE() cv::matchTemplate(src, templ, dst, CV_TM_CCORR_NORMED);
  
      SANITY_CHECK(dst, 3e-2);
  }
  
  } }
  
  #endif // HAVE_OPENCL
  