MatMean Method

public Scalar Mean(
	InputArray mask = null
)

Public Function Mean ( 
	Optional mask As InputArray = Nothing
) As Scalar

public:
Scalar Mean(
	InputArray^ mask = nullptr
)

member Mean : 
        ?mask : InputArray 
(* Defaults:
        let _mask = defaultArg mask null
*)
-> Scalar 

function Mean(mask);