Package org.opencv.core

Class KeyPoint

java.lang.Object
org.opencv.core.KeyPoint
public class KeyPoint
extends Object

  • Field Summary

    Fields 
    Modifier and Type Field Description
    float angle
    Computed orientation of the keypoint (-1 if not applicable).
    int class_id
    Object ID, that can be used to cluster keypoints by an object they belong to.
    int octave
    Octave (pyramid layer), from which the keypoint has been extracted.
    Point pt
    Coordinates of the keypoint.
    float response
    The response, by which the strongest keypoints have been selected.
    float size
    Diameter of the useful keypoint adjacent area.

  • Constructor Summary

    Constructors 
    Constructor Description
    KeyPoint()  
    KeyPoint​(float x, float y, float _size)  
    KeyPoint​(float x, float y, float _size, float _angle)  
    KeyPoint​(float x, float y, float _size, float _angle, float _response)  
    KeyPoint​(float x, float y, float _size, float _angle, float _response, int _octave)  
    KeyPoint​(float x, float y, float _size, float _angle, float _response, int _octave, int _class_id)  

  • Method Summary

    Modifier and Type Method Description
    String toString()  

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

  • Field Details

    • pt

      public Point pt
      Coordinates of the keypoint.

    • size

      public float size
      Diameter of the useful keypoint adjacent area.

    • angle

      public float angle
      Computed orientation of the keypoint (-1 if not applicable).

    • response

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

    • octave

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

    • class_id

      public int class_id
      Object ID, that can be used to cluster keypoints by an object they belong to.

  • Constructor Details

    • KeyPoint

      public KeyPoint​(float x, float y, float _size, float _angle, float _response, int _octave, int _class_id)

    • KeyPoint

      public KeyPoint()

    • KeyPoint

      public KeyPoint​(float x, float y, float _size, float _angle, float _response, int _octave)

    • KeyPoint

      public KeyPoint​(float x, float y, float _size, float _angle, float _response)

    • KeyPoint

      public KeyPoint​(float x, float y, float _size, float _angle)

    • KeyPoint

      public KeyPoint​(float x, float y, float _size)

  • Method Details