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core: optimize 8UC2 channel extraction

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This commit is contained in:
Xi Guo
2026-07-17 20:55:34 +08:00
parent 6f402272e7
commit 1bf1e70c0f
3 changed files with 89 additions and 0 deletions
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24
modules/core/perf/perf_split.cpp
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@@ -30,4 +30,28 @@ PERF_TEST_P( Size_Depth_Channels, split,
SANITY_CHECK(mv, 2e-5);
}
typedef tuple<Size, int> Size_Channel_t;
typedef perf::TestBaseWithParam<Size_Channel_t> Size_Channel;
PERF_TEST_P( Size_Channel, extractChannel,
testing::Combine
(
testing::Values(TYPICAL_MAT_SIZES),
testing::Values(0, 1)
)
)
{
Size sz = get<0>(GetParam());
int channel = get<1>(GetParam());
Mat src(sz, CV_8UC2);
Mat dst(sz, CV_8UC1);
randu(src, 0, 255);
int runs = (sz.width <= 640) ? 8 : 1;
TEST_CYCLE_MULTIRUN(runs) extractChannel(src, dst, channel);
SANITY_CHECK(dst);
}
} // namespace