Emgu CV Library Documentation
cvDotProduct Method (src1, src2)
NamespacesEmgu.CVCvInvokecvDotProduct(IntPtr, IntPtr)

www.emgu.com/wiki
Calculates and returns the Euclidean dot product of two arrays. src1 dot src2 = sumI(src1(I)*src2(I)) In case of multiple channel arrays the results for all channels are accumulated. In particular, cvDotProduct(a,a), where a is a complex vector, will return ||a||2. The function can process multi-dimensional arrays, row by row, layer by layer and so on.
Declaration Syntax
C#Visual BasicVisual C++
public static double cvDotProduct(
	IntPtr src1,
	IntPtr src2
)
Public Shared Function cvDotProduct ( _
	src1 As IntPtr, _
	src2 As IntPtr _
) As Double
public:
static double cvDotProduct(
	IntPtr src1, 
	IntPtr src2
)
Parameters
src1 (IntPtr)
The first source array.
src2 (IntPtr)
The second source array
Return Value
the Euclidean dot product of two arrays

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