Emgu CV Library Documentation
cvErode Method (src, dst, element, iterations)
NamespacesEmgu.CVCvInvokecvErode(IntPtr, IntPtr, IntPtr, Int32)

www.emgu.com/wiki
Erodes the source image using the specified structuring element that determines the shape of a pixel neighborhood over which the minimum is taken: dst=erode(src,element): dst(x,y)=min((x',y') in element))src(x+x',y+y') The function supports the in-place mode. Erosion can be applied several (iterations) times. In case of color image each channel is processed independently.
Declaration Syntax
C#Visual BasicVisual C++
public static void cvErode(
	IntPtr src,
	IntPtr dst,
	IntPtr element,
	int iterations
)
Public Shared Sub cvErode ( _
	src As IntPtr, _
	dst As IntPtr, _
	element As IntPtr, _
	iterations As Integer _
)
public:
static void cvErode(
	IntPtr src, 
	IntPtr dst, 
	IntPtr element, 
	int iterations
)
Parameters
src (IntPtr)
Source image.
dst (IntPtr)
Destination image
element (IntPtr)
Structuring element used for erosion. If it is NULL, a 3x3 rectangular structuring element is used.
iterations (Int32)
Number of times erosion is applied.

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