SURFUpright Property

false means that detector computes orientation of each feature. true means that the orientation is not computed (which is much, much faster). For example, if you match images from a stereo pair, or do image stitching, the matched features likely have very similar angles, and you can speed up feature extraction by setting upright=true.

public bool Upright { get; set; }

Public Property Upright As Boolean
	Get
	Set

public:
property bool Upright {
	bool get ();
	void set (bool value);
}

member Upright : bool with get, set