Emgu CV Library Documentation
cvConvertScaleAbs Method (src, dst, scale, shift)
NamespacesEmgu.CVCvInvokecvConvertScaleAbs(IntPtr, IntPtr, Double, Double)

www.emgu.com/wiki
Similar to cvCvtScale but it stores absolute values of the conversion results: dst(I)=abs(src(I)*scale + (shift,shift,...)) The function supports only destination arrays of 8u (8-bit unsigned integers) type, for other types the function can be emulated by combination of cvConvertScale and cvAbs functions.
Declaration Syntax
C#Visual BasicVisual C++
public static void cvConvertScaleAbs(
	IntPtr src,
	IntPtr dst,
	double scale,
	double shift
)
Public Shared Sub cvConvertScaleAbs ( _
	src As IntPtr, _
	dst As IntPtr, _
	scale As Double, _
	shift As Double _
)
public:
static void cvConvertScaleAbs(
	IntPtr src, 
	IntPtr dst, 
	double scale, 
	double shift
)
Parameters
src (IntPtr)
Source array
dst (IntPtr)
Destination array (should have 8u depth).
scale (Double)
ScaleAbs factor
shift (Double)
Value added to the scaled source array elements

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