Returns the number of non-zero elements in arr: result = sumI arr(I)!=0 In case of IplImage both ROI and COI are supported.

Namespace:  Emgu.CV
Assembly:  Emgu.CV (in Emgu.CV.dll) Version: 2.0.1.0 (2.0.1.0)

Syntax

C#
public static int cvCountNonZero(
	IntPtr arr
)
Visual Basic (Declaration)
Public Shared Function cvCountNonZero ( _
	arr As IntPtr _
) As Integer
Visual C++
public:
static int cvCountNonZero(
	IntPtr arr
)

Parameters

arr
Type: System..::.IntPtr
The image

Return Value

the number of non-zero elements in image

See Also