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     42 //M*/
     43 
     44 #include "../test_precomp.hpp"
     45 #include "opencv2/ts/ocl_test.hpp"
     46 
     47 #ifdef HAVE_OPENCL
     48 
     49 namespace cvtest {
     50 namespace ocl {
     51 
     52 /////////////////////////////////////////////////////////////////////////////////////////////////
     53 // Optical_flow_tvl1
     54 namespace
     55 {
     56     IMPLEMENT_PARAM_CLASS(UseInitFlow, bool)
     57     IMPLEMENT_PARAM_CLASS(MedianFiltering, int)
     58     IMPLEMENT_PARAM_CLASS(ScaleStep, double)
     59 }
     60 
     61 PARAM_TEST_CASE(OpticalFlowTVL1, UseInitFlow, MedianFiltering, ScaleStep)
     62 {
     63     bool useInitFlow;
     64     int medianFiltering;
     65     double scaleStep;
     66     virtual void SetUp()
     67     {
     68         useInitFlow = GET_PARAM(0);
     69         medianFiltering = GET_PARAM(1);
     70         scaleStep = GET_PARAM(2);
     71     }
     72 };
     73 
     74 OCL_TEST_P(OpticalFlowTVL1, Mat)
     75 {
     76     cv::Mat frame0 = readImage("optflow/RubberWhale1.png", cv::IMREAD_GRAYSCALE);
     77     ASSERT_FALSE(frame0.empty());
     78 
     79     cv::Mat frame1 = readImage("optflow/RubberWhale2.png", cv::IMREAD_GRAYSCALE);
     80     ASSERT_FALSE(frame1.empty());
     81 
     82     cv::Mat flow; cv::UMat uflow;
     83 
     84     //create algorithm
     85     cv::Ptr<cv::DualTVL1OpticalFlow> alg = cv::createOptFlow_DualTVL1();
     86 
     87     //set parameters
     88     alg->setScaleStep(scaleStep);
     89     alg->setMedianFiltering(medianFiltering);
     90 
     91     //create initial flow as result of algorithm calculation
     92     if (useInitFlow)
     93     {
     94         OCL_ON(alg->calc(frame0, frame1, uflow));
     95         uflow.copyTo(flow);
     96     }
     97 
     98     //set flag to use initial flow as it is ready to use
     99     alg->setUseInitialFlow(useInitFlow);
    100 
    101     OCL_OFF(alg->calc(frame0, frame1, flow));
    102     OCL_ON(alg->calc(frame0, frame1, uflow));
    103 
    104     EXPECT_MAT_SIMILAR(flow, uflow, 1e-2);
    105 }
    106 
    107 OCL_INSTANTIATE_TEST_CASE_P(Video, OpticalFlowTVL1,
    108     Combine(
    109     Values(UseInitFlow(false), UseInitFlow(true)),
    110     Values(MedianFiltering(3), MedianFiltering(-1)),
    111     Values(ScaleStep(0.3),ScaleStep(0.5))
    112     )
    113     );
    114 
    115 } } // namespace cvtest::ocl
    116 
    117 #endif // HAVE_OPENCL
    118