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core: add broadcast (#23965)

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* add broadcast_to with tests

* change name

* fix test

* fix implicit type conversion

* replace type of shape with InputArray

* add perf test

* add perf tests which takes care of axis

* v2 from ficus expand

* rename to broadcast

* use randu in place of declare

* doc improvement; smaller scale in perf

* capture get_index by reference
This commit is contained in:
Yuantao Feng
2023-08-30 14:53:59 +08:00
committed by GitHub
parent 8a1b998b2b
commit a308dfca98
4 changed files with 385 additions and 0 deletions
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modules/core/perf/perf_arithm.cpp
+27
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@@ -5,8 +5,35 @@ namespace opencv_test
{
using namespace perf;
using BroadcastTest = perf::TestBaseWithParam<std::tuple<std::vector<int>, perf::MatType, std::vector<int>>>;
typedef Size_MatType BinaryOpTest;
PERF_TEST_P_(BroadcastTest, basic)
{
std::vector<int> shape_src = get<0>(GetParam());
int dt_type = get<1>(GetParam());
std::vector<int> shape_dst = get<2>(GetParam());
cv::Mat src(static_cast<int>(shape_src.size()), shape_src.data(), dt_type);
cv::Mat dst(static_cast<int>(shape_dst.size()), shape_dst.data(), dt_type);
cv::randu(src, -1.f, 1.f);
TEST_CYCLE() cv::broadcast(src, shape_dst, dst);
SANITY_CHECK_NOTHING();
}
INSTANTIATE_TEST_CASE_P(/*nothing*/ , BroadcastTest,
testing::Combine(
testing::Values(std::vector<int>{1, 100, 800},
std::vector<int>{10, 1, 800},
std::vector<int>{10, 100, 1}),
testing::Values(CV_32FC1),
testing::Values(std::vector<int>{10, 100, 800})
)
);
PERF_TEST_P_(BinaryOpTest, min)
{
Size sz = get<0>(GetParam());