Function multiply

pub fn multiply(
    src1: &impl ToInputArray,
    src2: &impl ToInputArray,
    dst: &mut impl ToOutputArray,
    scale: f64,
    dtype: i32,
) -> Result<()>

Calculates the per-element scaled product of two arrays.

The function multiply calculates the per-element product of two arrays:

There is also a [MatrixExpressions] -friendly variant of the first function. See Mat::mul .

For a not-per-element matrix product, see gemm .

Note: Saturation is not applied when the output array has the depth CV_32S. You may even get result of an incorrect sign in the case of overflow.

Note: (Python) Be careful to difference behaviour between src1/src2 are single number and they are tuple/array. multiply(src,X) means multiply(src,(X,X,X,X)). multiply(src,(X,)) means multiply(src,(X,0,0,0)).

Parameters

• src1: first input array.
• src2: second input array of the same size and the same type as src1.
• dst: output array of the same size and type as src1.
• scale: optional scale factor.
• dtype: optional depth of the output array

See also

add, subtract, divide, scaleAdd, addWeighted, accumulate, accumulateProduct, accumulateSquare, Mat::convertTo

C++ default parameters

• scale: 1
• dtype: -1