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.

Axes

The lengths of the major and minor ellipse axes.

ClassId

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

Octave

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

Pt

Coordinates of the keypoint.

Response

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

Si

The integration scale at which the parameters were estimated.

Size

Diameter of the meaningful keypoint neighborhood.

Transf00

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

Transf01

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

Transf02

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

Transf10

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

Transf11

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

Transf12

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