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3rdparty/opencv-4.5.4/modules/video/perf/opencl/perf_bgfg_knn.cpp 2.7 KB
f4334277   Hu Chunming   提交3rdparty
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  // This file is part of OpenCV project.
  // It is subject to the license terms in the LICENSE file found in the top-level directory
  // of this distribution and at http://opencv.org/license.html.
  
  #include "../perf_precomp.hpp"
  #include "opencv2/ts/ocl_perf.hpp"
  
  #ifdef HAVE_OPENCL
  #include "../perf_bgfg_utils.hpp"
  
  namespace cvtest {
  namespace ocl {
  
  //////////////////////////// KNN//////////////////////////
  
  typedef tuple<string, int> VideoKNNParamType;
  typedef TestBaseWithParam<VideoKNNParamType> KNN_Apply;
  typedef TestBaseWithParam<VideoKNNParamType> KNN_GetBackgroundImage;
  
  using namespace opencv_test;
  
  OCL_PERF_TEST_P(KNN_Apply, KNN, Combine(Values("cv/video/768x576.avi", "cv/video/1920x1080.avi"), Values(1,3)))
  {
      VideoKNNParamType params = GetParam();
  
      const string inputFile = getDataPath(get<0>(params));
  
      const int cn = get<1>(params);
      int nFrame = 5;
  
      vector<Mat> frame_buffer(nFrame);
  
      cv::VideoCapture cap(inputFile);
      if (!cap.isOpened())
          throw SkipTestException("Video file can not be opened");
      prepareData(cap, cn, frame_buffer);
  
      UMat u_foreground;
  
      OCL_TEST_CYCLE()
      {
          Ptr<cv::BackgroundSubtractorKNN> knn = createBackgroundSubtractorKNN();
          knn->setDetectShadows(false);
          u_foreground.release();
          for (int i = 0; i < nFrame; i++)
          {
              knn->apply(frame_buffer[i], u_foreground);
          }
      }
      SANITY_CHECK_NOTHING();
  }
  
  OCL_PERF_TEST_P(KNN_GetBackgroundImage, KNN, Values(
          std::make_pair<string, int>("cv/video/768x576.avi", 5),
          std::make_pair<string, int>("cv/video/1920x1080.avi", 5)))
  {
      VideoKNNParamType params = GetParam();
  
      const string inputFile = getDataPath(get<0>(params));
  
      const int cn = 3;
      const int skipFrames = get<1>(params);
      int nFrame = 10;
  
      vector<Mat> frame_buffer(nFrame);
  
      cv::VideoCapture cap(inputFile);
      if (!cap.isOpened())
          throw SkipTestException("Video file can not be opened");
      prepareData(cap, cn, frame_buffer, skipFrames);
  
      UMat u_foreground, u_background;
  
      OCL_TEST_CYCLE()
      {
          Ptr<cv::BackgroundSubtractorKNN> knn = createBackgroundSubtractorKNN();
          knn->setDetectShadows(false);
          u_foreground.release();
          u_background.release();
          for (int i = 0; i < nFrame; i++)
          {
              knn->apply(frame_buffer[i], u_foreground);
          }
          knn->getBackgroundImage(u_background);
      }
  #ifdef DEBUG_BGFG
      imwrite(format("fg_%d_%d_knn_ocl.png", frame_buffer[0].rows, cn), u_foreground.getMat(ACCESS_READ));
      imwrite(format("bg_%d_%d_knn_ocl.png", frame_buffer[0].rows, cn), u_background.getMat(ACCESS_READ));
  #endif
      SANITY_CHECK_NOTHING();
  }
  
  }}// namespace cvtest::ocl
  
  #endif