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Merge pull request #16803 from TolyaTalamanov:at/yuv-to-gray

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* Implement NV12toGray

* Snapshot

* Implement NV12toGray as compound kernel

* Update gapi_imgproc_tests_inl.hpp

* Remove YUV2Gray from public API
This commit is contained in:
Anatoliy Talamanov
2020-03-24 13:51:18 +03:00
committed by GitHub
parent ea34b2fefb
commit 4d3d6230c5
6 changed files with 135 additions and 5 deletions
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2
modules/gapi/test/common/gapi_imgproc_tests.hpp
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@@ -56,10 +56,12 @@ GAPI_TEST_FIXTURE(RGB2GrayTest, initMatrixRandN, FIXTURE_API(CompareMats), 1, cm
GAPI_TEST_FIXTURE(BGR2GrayTest, initMatrixRandN, FIXTURE_API(CompareMats), 1, cmpF)
GAPI_TEST_FIXTURE(RGB2YUVTest, initMatrixRandN, FIXTURE_API(CompareMats), 1, cmpF)
GAPI_TEST_FIXTURE(YUV2RGBTest, initMatrixRandN, FIXTURE_API(CompareMats), 1, cmpF)
GAPI_TEST_FIXTURE(YUV2GrayTest, initMatrixRandN, FIXTURE_API(CompareMats), 1, cmpF)
GAPI_TEST_FIXTURE(NV12toRGBTest, initMatrixRandN, FIXTURE_API(CompareMats), 1, cmpF)
GAPI_TEST_FIXTURE(NV12toBGRpTest, initMatrixRandN, FIXTURE_API(CompareMats), 1, cmpF)
GAPI_TEST_FIXTURE(NV12toRGBpTest, initMatrixRandN, FIXTURE_API(CompareMats), 1, cmpF)
GAPI_TEST_FIXTURE(NV12toBGRTest, initMatrixRandN, FIXTURE_API(CompareMats), 1, cmpF)
GAPI_TEST_FIXTURE(NV12toGrayTest, initMatrixRandN, FIXTURE_API(CompareMats), 1, cmpF)
GAPI_TEST_FIXTURE(RGB2LabTest, initMatrixRandN, FIXTURE_API(CompareMats), 1, cmpF)
GAPI_TEST_FIXTURE(BGR2LUVTest, initMatrixRandN, FIXTURE_API(CompareMats), 1, cmpF)
GAPI_TEST_FIXTURE(LUV2BGRTest, initMatrixRandN, FIXTURE_API(CompareMats), 1, cmpF)

27
modules/gapi/test/common/gapi_imgproc_tests_inl.hpp
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@@ -504,6 +504,33 @@ TEST_P(NV12toBGRTest, AccuracyTest)
}
}
TEST_P(NV12toGrayTest, AccuracyTest)
{
// G-API code //////////////////////////////////////////////////////////////
cv::GMat in_y;
cv::GMat in_uv;
auto out = cv::gapi::NV12toGray(in_y, in_uv);
// Additional mat for uv
cv::Mat in_mat_uv(cv::Size(sz.width / 2, sz.height / 2), CV_8UC2);
cv::randn(in_mat_uv, cv::Scalar::all(127), cv::Scalar::all(40.f));
cv::GComputation c(cv::GIn(in_y, in_uv), cv::GOut(out));
c.apply(cv::gin(in_mat1, in_mat_uv), cv::gout(out_mat_gapi), getCompileArgs());
cv::Mat out_mat_ocv_planar;
cv::Mat uv_planar(in_mat1.rows / 2, in_mat1.cols, CV_8UC1, in_mat_uv.data);
// OpenCV code /////////////////////////////////////////////////////////////
{
cv::vconcat(in_mat1, uv_planar, out_mat_ocv_planar);
cv::cvtColor(out_mat_ocv_planar, out_mat_ocv, cv::COLOR_YUV2GRAY_NV12);
}
// Comparison //////////////////////////////////////////////////////////////
{
EXPECT_TRUE(cmpF(out_mat_gapi, out_mat_ocv));
EXPECT_EQ(out_mat_gapi.size(), sz);
}
}
static void toPlanar(const cv::Mat& in, cv::Mat& out)
{