Emgu CV Library Documentation
cvCopyMakeBorder Method (src, dst, offset, bordertype, value)
NamespacesEmgu.CVCvInvokecvCopyMakeBorder(IntPtr, IntPtr, Point, BORDER_TYPE, MCvScalar)

www.emgu.com/wiki
Copies the source 2D array into interior of destination array and makes a border of the specified type around the copied area. The function is useful when one needs to emulate border type that is different from the one embedded into a specific algorithm implementation. For example, morphological functions, as well as most of other filtering functions in OpenCV, internally use replication border type, while the user may need zero border or a border, filled with 1's or 255's
Declaration Syntax
C#Visual BasicVisual C++
public static void cvCopyMakeBorder(
	IntPtr src,
	IntPtr dst,
	Point offset,
	BORDER_TYPE bordertype,
	MCvScalar value
)
Public Shared Sub cvCopyMakeBorder ( _
	src As IntPtr, _
	dst As IntPtr, _
	offset As Point, _
	bordertype As BORDER_TYPE, _
	value As MCvScalar _
)
public:
static void cvCopyMakeBorder(
	IntPtr src, 
	IntPtr dst, 
	Point offset, 
	BORDER_TYPE bordertype, 
	MCvScalar value
)
Parameters
src (IntPtr)
The source image
dst (IntPtr)
The destination image
offset (Point)
Coordinates of the top-left corner (or bottom-left in case of images with bottom-left origin) of the destination image rectangle where the source image (or its ROI) is copied. Size of the rectangle matches the source image size/ROI size
bordertype (BORDER_TYPE)
Type of the border to create around the copied source image rectangle
value (MCvScalar)
Value of the border pixels if bordertype=CONSTANT

Assembly: Emgu.CV (Module: Emgu.CV) Version: 1.5.0.0 (1.5.0.0)