Emgu CV Library Documentation
cvRemap Method (src, dst, mapx, mapy, flags, fillval)
NamespacesEmgu.CVCvInvokecvRemap(IntPtr, IntPtr, IntPtr, IntPtr, Int32, MCvScalar)

www.emgu.com/wiki
Similar to other geometrical transformations, some interpolation method (specified by user) is used to extract pixels with non-integer coordinates.
Declaration Syntax
C#Visual BasicVisual C++
public static void cvRemap(
	IntPtr src,
	IntPtr dst,
	IntPtr mapx,
	IntPtr mapy,
	int flags,
	MCvScalar fillval
)
Public Shared Sub cvRemap ( _
	src As IntPtr, _
	dst As IntPtr, _
	mapx As IntPtr, _
	mapy As IntPtr, _
	flags As Integer, _
	fillval As MCvScalar _
)
public:
static void cvRemap(
	IntPtr src, 
	IntPtr dst, 
	IntPtr mapx, 
	IntPtr mapy, 
	int flags, 
	MCvScalar fillval
)
Parameters
src (IntPtr)
Source image
dst (IntPtr)
Destination image
mapx (IntPtr)
The map of x-coordinates (32fC1 image)
mapy (IntPtr)
The map of y-coordinates (32fC1 image)
flags (Int32)
A combination of interpolation method and the optional flag CV_WARP_FILL_OUTLIERS
fillval (MCvScalar)
A value used to fill outliers

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