opencv/modules/cudev/test/test_pyramids.cu

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/*M///////////////////////////////////////////////////////////////////////////////////////
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#include "test_precomp.hpp"
using namespace cv;
using namespace cv::gpu;
using namespace cv::cudev;
using namespace cvtest;
TEST(PyrDown, _8uc1)
{
const Size size = randomSize(100, 400);
Mat src = randomMat(size, CV_8UC1);
GpuMat_<uchar> d_src(src);
GpuMat_<uchar> dst = pyrDown_(d_src);
Mat dst_gold;
cv::pyrDown(src, dst_gold);
ASSERT_MAT_NEAR(dst_gold, dst, 1.0);
}
TEST(PyrUp, _32fc4)
{
const Size size = randomSize(100, 400);
Mat src = randomMat(size, CV_32FC4);
GpuMat_<float4> d_src(src);
GpuMat_<float4> dst = pyrDown_(d_src);
Mat dst_gold;
cv::pyrDown(src, dst_gold);
ASSERT_MAT_NEAR(dst_gold, dst, 1e-4);
}