cv::multiply (Bug #3341)

Added by Ilya Lavrenov over 11 years ago. Updated about 11 years ago.

Status:	Done	Start date:	2013-10-23
Priority:	Normal	Due date:
Assignee:	Ilya Lavrenov	% Done:	0%
Category:	core
Target version:	2.4.8
Affected version:	branch '2.4' (2.4-dev)	Operating System:	Any
Difficulty:	Easy	HW Platform:	Any
Pull request:	https://github.com/Itseez/opencv/pull/2086

Description

cv::mulptiply can not deduce output matrix type in case when the first argument is double and the second is matrix with Size(1, 1)
Below the test which reproduces the problem:
@typedef testing::TestWithParam<Size> Mul1;

TEST_P(Mul1, One) {
Size s = GetParam();
cv::Mat s1(s, CV_32F, cv::Scalar::all(0)), d1(s, CV_32F, cv::Scalar::all(0));
cv::multiply(1, s1, d1);
}

INSTANTIATE_TEST_CASE_P(Arithm, Mul1, Values(Size(2, 2), Size(1, 1)));@

p.s.: the problem in this strange condition (it's false in this case):
if( src1.size != src2.size || src1.channels() != src2.channels() || ((kind1 _InputArray::MATX || kind2 _InputArray::MATX) && src1.cols 1 && src2.rows 4) )