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

dst = cv.convertScaleAbs(src)
dst = cv.convertScaleAbs(src, 'OptionName',optionValue, ...)

Input

• src input array.

Output

• dst output 8-bit array.

Options

• Alpha optional scale factor. Default 1.0
• Beta optional delta added to the scaled values. Default 0.0

On each element of the input array, the function cv.convertScaleAbs performs three operations sequentially: scaling, taking an absolute value, conversion to an unsigned 8-bit type:

dst(I) = saturate_cast<uchar>(|src(I) * alpha + beta|)

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.