Emgu CV Library Documentation
cvSet Method (arr, value, mask)
NamespacesEmgu.CVCvInvokecvSet(IntPtr, MCvScalar, IntPtr)

www.emgu.com/wiki
Copies scalar value to every selected element of the destination array: arr(I)=value if mask(I)!=0 If array arr is of IplImage type, then is ROI used, but COI must not be set
Declaration Syntax
C#Visual BasicVisual C++
public static void cvSet(
	IntPtr arr,
	MCvScalar value,
	IntPtr mask
)
Public Shared Sub cvSet ( _
	arr As IntPtr, _
	value As MCvScalar, _
	mask As IntPtr _
)
public:
static void cvSet(
	IntPtr arr, 
	MCvScalar value, 
	IntPtr mask
)
Parameters
arr (IntPtr)
The destination array
value (MCvScalar)
Fill value
mask (IntPtr)
Operation mask, 8-bit single channel array; specifies elements of destination array to be changed

Assembly: Emgu.CV (Module: Emgu.CV) Version: 1.3.0.0 (1.3.0.0)