Finds robust features in the image (basic descriptor is returned in this case). For each feature it returns its location, size, orientation and optionally the descriptor, basic or extended. The function can be used for object tracking and localization, image stitching etc

public SURFFeature[] ExtractSURF(
	Image<Gray, byte> mask,
	ref MCvSURFParams param
)

Public Function ExtractSURF ( _
	mask As Image(Of Gray, Byte), _
	ByRef param As MCvSURFParams _
) As SURFFeature()

public:
array<SURFFeature^>^ ExtractSURF(
	Image<Gray, unsigned char>^ mask, 
	MCvSURFParams% param
)