[−][src]Function opencv::core::convert_scale_abs

pub fn convert_scale_abs(
    src: &dyn ToInputArray, 
    dst: &mut dyn ToOutputArray, 
    alpha: f64, 
    beta: f64
) -> Result<()>

Scales, calculates absolute values, and converts the result to 8-bit.

On each element of the input array, the function convertScaleAbs performs three operations sequentially: scaling, taking an absolute value, conversion to an unsigned 8-bit type: block formula In case of multi-channel arrays, the function processes each channel independently. When the output is not 8-bit, the operation can be emulated by calling the Mat::convertTo method (or by using matrix expressions) and then by calculating an absolute value of the result. For example:

ⓘThis example is not tested
Mat_<float> A(30,30);
randu(A, Scalar(-100), Scalar(100));
Mat_<float> B = A*5 + 3;
B = abs(B);
// Mat_<float> B = abs(A*5+3) will also do the job,
// but it will allocate a temporary matrix

Parameters

  • src: input array.
  • dst: output array.
  • alpha: optional scale factor.
  • beta: optional delta added to the scaled values.

See also

Mat::convertTo, cv::abs(const Mat&)

C++ default parameters

  • alpha: 1
  • beta: 0