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46 #include "test_precomp.hpp"
52 ////////////////////////////////////////////////////////////////////////////
55 PARAM_TEST_CASE(Dft, cv::Size, int)
61 dft_size = GET_PARAM(0);
62 dft_flags = GET_PARAM(1);
68 cv::Mat a = randomMat(dft_size, CV_32FC2, 0.0, 100.0);
73 cv::dft(a, b_gold, dft_flags);
74 cv::ocl::dft(cv::ocl::oclMat(a), d_b, a.size(), dft_flags);
75 EXPECT_MAT_NEAR(b_gold, cv::Mat(d_b), a.size().area() * 1e-4);
80 cv::Mat a = randomMat(dft_size, CV_32FC1, 0.0, 100.0);
81 cv::Mat b_gold, b_gold_roi;
83 cv::ocl::oclMat d_b, d_c;
84 cv::ocl::dft(cv::ocl::oclMat(a), d_b, a.size(), dft_flags);
85 cv::dft(a, b_gold, cv::DFT_COMPLEX_OUTPUT | dft_flags);
87 b_gold_roi = b_gold(cv::Rect(0, 0, d_b.cols, d_b.rows));
88 EXPECT_MAT_NEAR(b_gold_roi, cv::Mat(d_b), a.size().area() * 1e-4);
91 cv::dft(b_gold, c_gold, cv::DFT_INVERSE | cv::DFT_REAL_OUTPUT | cv::DFT_SCALE);
92 EXPECT_MAT_NEAR(b_gold_roi, cv::Mat(d_b), a.size().area() * 1e-4);
95 OCL_TEST_P(Dft, R2CthenC2R)
97 cv::Mat a = randomMat(dft_size, CV_32FC1, 0.0, 10.0);
99 cv::ocl::oclMat d_b, d_c;
100 cv::ocl::dft(cv::ocl::oclMat(a), d_b, a.size(), 0);
101 cv::ocl::dft(d_b, d_c, a.size(), cv::DFT_SCALE | cv::DFT_INVERSE | cv::DFT_REAL_OUTPUT);
102 EXPECT_MAT_NEAR(a, d_c, a.size().area() * 1e-4);
106 INSTANTIATE_TEST_CASE_P(OCL_ImgProc, Dft, testing::Combine(
107 testing::Values(cv::Size(2, 3), cv::Size(5, 4), cv::Size(25, 20), cv::Size(512, 1), cv::Size(1024, 768)),
108 testing::Values(0, (int)cv::DFT_ROWS, (int)cv::DFT_SCALE) ));
110 #endif // HAVE_CLAMDFFT