Emgu CV Library Documentation
cvSURFParams Method (hessianThreshold, extended)
NamespacesEmgu.CVCvInvokecvSURFParams(Double, Int32)

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Create a CvSURFParams using the specific values
Declaration Syntax
C#Visual BasicVisual C++
public static MCvSURFParams cvSURFParams(
	double hessianThreshold,
	int extended
)
Public Shared Function cvSURFParams ( _
	hessianThreshold As Double, _
	extended As Integer _
) As MCvSURFParams
public:
static MCvSURFParams cvSURFParams(
	double hessianThreshold, 
	int extended
)
Parameters
hessianThreshold (Double)
only features with keypoint.hessian larger than that are extracted. good default value is ~300-500 (can depend on the average local contrast and sharpness of the image). user can further filter out some features based on their hessian values and other characteristics
extended (Int32)
0 means basic descriptors (64 elements each), 1 means extended descriptors (128 elements each)
Return Value
The MCvSURFParams structure

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