SURF keypoints
Namespace: OpenCvSharp
Assembly: OpenCvSharp (in OpenCvSharp.dll) Version: 1.0.0.0 (1.0.0.0)
Syntax
The CvSURFPoint type exposes the following members.
Constructors
| Name | Description | |
|---|---|---|
 | CvSURFPoint(IntPtr) |
Initializes from native pointer
|
| CvSURFPoint(CvPoint2D32f, Int32, Int32, Single, Single) |
Constructor
|
Methods
| Name | Description | |
|---|---|---|
| Equals | (Inherited from ValueType.) |
 | FromPtr |
Creates CvSURFPoint instance from native ponter
|
| GetHashCode | (Inherited from ValueType.) |
| GetType | (Inherited from Object.) |
| ToString | (Inherited from ValueType.) |
Fields
| Name | Description | |
|---|---|---|
 | Dir |
orientation of the feature: 0..360 degrees
|
| Hessian |
value of the hessian (can be used to approximately estimate the feature strengths;
see also params._hessianThreshold)
|
| Laplacian |
-1, 0 or +1. sign of the laplacian at the point.
can be used to speedup feature comparison
(normally features with laplacians of different signs can not match)
|
| Pt |
Position of the feature within the image
|
| Size |
size of the feature
|
See Also