opencv/modules/ocl/test/test_fft.cpp

98 lines
3.5 KiB
C++

/*M///////////////////////////////////////////////////////////////////////////////////////
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// For Open Source Computer Vision Library
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// Copyright (C) 2010-2012, Multicoreware, Inc., all rights reserved.
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// @Authors
// Peng Xiao, pengxiao@multicorewareinc.com
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#include "precomp.hpp"
using namespace std;
#ifdef HAVE_CLAMDFFT
////////////////////////////////////////////////////////////////////////////
// Dft
PARAM_TEST_CASE(Dft, cv::Size, bool)
{
cv::Size dft_size;
bool dft_rows;
std::vector<cv::ocl::Info> oclinfo;
virtual void SetUp()
{
int devnums = getDevice(oclinfo);
CV_Assert(devnums > 0);
dft_size = GET_PARAM(0);
dft_rows = GET_PARAM(1);
}
};
TEST_P(Dft, C2C)
{
cv::Mat a = randomMat(dft_size, CV_32FC2, 0.0, 10.0);
cv::Mat b_gold;
int flags = 0;
flags |= dft_rows ? cv::DFT_ROWS : 0;
cv::ocl::oclMat d_b;
cv::dft(a, b_gold, flags);
cv::ocl::dft(cv::ocl::oclMat(a), d_b, a.size(), flags);
EXPECT_MAT_NEAR(b_gold, cv::Mat(d_b), a.size().area() * 1e-4, "");
}
TEST_P(Dft, R2CthenC2R)
{
cv::Mat a = randomMat(dft_size, CV_32FC1, 0.0, 10.0);
int flags = 0;
//flags |= dft_rows ? cv::DFT_ROWS : 0; // not supported yet
cv::ocl::oclMat d_b, d_c;
cv::ocl::dft(cv::ocl::oclMat(a), d_b, a.size(), flags);
cv::ocl::dft(d_b, d_c, a.size(), flags + cv::DFT_INVERSE + cv::DFT_REAL_OUTPUT);
EXPECT_MAT_NEAR(a, d_c, a.size().area() * 1e-4, "");
}
INSTANTIATE_TEST_CASE_P(ocl_DFT, Dft, testing::Combine(
testing::Values(cv::Size(5, 4), cv::Size(20, 20)),
testing::Values(false, true)));
#endif // HAVE_CLAMDFFT