Function abs_sum 

pub fn abs_sum(
    src: &impl ToInputArray,
    mask: &impl ToInputArray,
) -> Result<Scalar>

Returns the sum of absolute values for matrix elements.

Parameters

• src: Source image of any depth except for CV_64F .
• mask: optional operation mask; it must have the same size as src1 and CV_8UC1 type.

C++ default parameters

• mask: noArray()