opencv/modules/cudev/test/test_cvt.cu

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#include "test_precomp.hpp"

using namespace cv;
using namespace cv::cuda;
using namespace cv::cudev;
using namespace cvtest;

typedef ::testing::Types<uchar, ushort, short, int, float> AllTypes;

////////////////////////////////////////////////////////////////////////////////
// CvtTest

template <typename T>
class CvtTest : public ::testing::Test
{
public:
    void test_gpumat()
    {
        const Size size = randomSize(100, 400);
        const int type = DataType<T>::type;

        Mat src = randomMat(size, type);

        GpuMat_<T> d_src(src);

        GpuMat_<T> dst = cvt_<T>(cvt_<float>(d_src) * 2.0f - 10.0f);

        Mat dst_gold;
        src.convertTo(dst_gold, src.depth(), 2, -10);

        EXPECT_MAT_NEAR(dst_gold, dst, 0.0);
    }
};

TYPED_TEST_CASE(CvtTest, AllTypes);

TYPED_TEST(CvtTest, GpuMat)
{
    CvtTest<TypeParam>::test_gpumat();
}