Table of Contents

Struct EllipticKeyPoint

Namespace
OpenCvSharp.XFeatures2D
Assembly
OpenCvSharp.dll

Elliptic region around an interest point, as produced by AffineFeature2D. Mirrors cv::xfeatures2d::Elliptic_KeyPoint.

public struct EllipticKeyPoint
Inherited Members

Fields

Angle

Computed orientation of the keypoint (-1 if not applicable). Its possible values are in a range [0,360) degrees, measured relative to the image coordinate system (y-axis is directed downward), i.e in clockwise direction.

public float Angle

Field Value

float

Axes

The lengths of the major and minor ellipse axes.

public Size2f Axes

Field Value

Size2f

ClassId

Object class (if the keypoints need to be clustered by an object they belong to).

public int ClassId

Field Value

int

Octave

Octave (pyramid layer), from which the keypoint has been extracted.

public int Octave

Field Value

int

Pt

Coordinates of the keypoint.

public Point2f Pt

Field Value

Point2f

Response

The response, by which the strongest keypoints have been selected. Can be used for the further sorting or subsampling.

public float Response

Field Value

float

Si

The integration scale at which the parameters were estimated.

public float Si

Field Value

float

Size

Diameter of the meaningful keypoint neighborhood.

public float Size

Field Value

float

Transf00

The transformation between image space and local patch space, row 0 (m00, m01, m02).

public float Transf00

Field Value

float

Transf01

The transformation between image space and local patch space, row 0 (m00, m01, m02).

public float Transf01

Field Value

float

Transf02

The transformation between image space and local patch space, row 0 (m00, m01, m02).

public float Transf02

Field Value

float

Transf10

The transformation between image space and local patch space, row 1 (m10, m11, m12).

public float Transf10

Field Value

float

Transf11

The transformation between image space and local patch space, row 1 (m10, m11, m12).

public float Transf11

Field Value

float

Transf12

The transformation between image space and local patch space, row 1 (m10, m11, m12).

public float Transf12

Field Value

float