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Fixed cv::mul overflow for U16 type.

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This commit is contained in:
Alexander Smorkalov
2026-02-27 09:30:16 +03:00
parent 6c374bebee
commit 01320ab612
2 changed files with 21 additions and 0 deletions
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modules/core/test/test_arithm.cpp
+12
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@@ -3411,4 +3411,16 @@ TEST_P(Core_LUT, accuracy_multi2)
INSTANTIATE_TEST_CASE_P(/**/, Core_LUT, testing::Combine( LutIdxType::all(), LutMatType::all()));
TEST(Core_Arithm, mul_overflow_28557)
{
uint16_t data[] = {5000, 60000, 5000, 60000, 5000, 60000};
cv::Mat m(1, 6, CV_16U, data);
cv::Mat res = m.mul(m);
for (int i = 0; i < 6; i++)
{
EXPECT_EQ(65535, res.at<uint16_t>(0, i));
}
}
}} // namespace