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CvInvokeMean Method
http://www.emgu.com
Calculates the average value M of array elements, independently for each channel: N = sumI mask(I)!=0 Mc = 1/N * sumI,mask(I)!=0 arr(I)c If the array is IplImage and COI is set, the function processes the selected channel only and stores the average to the first scalar component (S0).

Namespace: Emgu.CV
Assembly: Emgu.CV.World (in Emgu.CV.World.dll) Version: 3.1.0.2282 (3.1.0.2282)
Syntax
public static MCvScalar Mean(
	IInputArray arr,
	IInputArray mask = null
)

Parameters

arr
Type: Emgu.CVIInputArray
The array
mask (Optional)
Type: Emgu.CVIInputArray
The optional operation mask

Return Value

Type: MCvScalar
average (mean) of array elements
See Also