MatConvertTo Method OpenCvSharp Class Library
Converts an array to another data type with optional scaling.

Namespace:  OpenCvSharp.CPlusPlus
Assembly:  OpenCvSharp.CPlusPlus (in OpenCvSharp.CPlusPlus.dll) Version: 1.0.0.0 (1.0.0.0)
Syntax

public void ConvertTo(
	Mat m,
	MatType rtype,
	double alpha = 1,
	double beta = 0
)

Parameters

m
Type: OpenCvSharp.CPlusPlusMat
output matrix; if it does not have a proper size or type before the operation, it is reallocated.
rtype
Type: OpenCvSharp.CPlusPlusMatType
desired output matrix type or, rather, the depth since the number of channels are the same as the input has; if rtype is negative, the output matrix will have the same type as the input.
alpha (Optional)
Type: SystemDouble
optional scale factor.
beta (Optional)
Type: SystemDouble
optional delta added to the scaled values.
See Also

Reference