1 package org.opencv.core; 2 3 import org.opencv.core.Point; 4 5 //javadoc: KeyPoint 6 public class KeyPoint { 7 8 /** 9 * Coordinates of the keypoint. 10 */ 11 public Point pt; 12 /** 13 * Diameter of the useful keypoint adjacent area. 14 */ 15 public float size; 16 /** 17 * Computed orientation of the keypoint (-1 if not applicable). 18 */ 19 public float angle; 20 /** 21 * The response, by which the strongest keypoints have been selected. Can 22 * be used for further sorting or subsampling. 23 */ 24 public float response; 25 /** 26 * Octave (pyramid layer), from which the keypoint has been extracted. 27 */ 28 public int octave; 29 /** 30 * Object ID, that can be used to cluster keypoints by an object they 31 * belong to. 32 */ 33 public int class_id; 34 35 // javadoc:KeyPoint::KeyPoint(x,y,_size,_angle,_response,_octave,_class_id) 36 public KeyPoint(float x, float y, float _size, float _angle, float _response, int _octave, int _class_id) 37 { 38 pt = new Point(x, y); 39 size = _size; 40 angle = _angle; 41 response = _response; 42 octave = _octave; 43 class_id = _class_id; 44 } 45 46 // javadoc: KeyPoint::KeyPoint() 47 public KeyPoint() 48 { 49 this(0, 0, 0, -1, 0, 0, -1); 50 } 51 52 // javadoc: KeyPoint::KeyPoint(x, y, _size, _angle, _response, _octave) 53 public KeyPoint(float x, float y, float _size, float _angle, float _response, int _octave) 54 { 55 this(x, y, _size, _angle, _response, _octave, -1); 56 } 57 58 // javadoc: KeyPoint::KeyPoint(x, y, _size, _angle, _response) 59 public KeyPoint(float x, float y, float _size, float _angle, float _response) 60 { 61 this(x, y, _size, _angle, _response, 0, -1); 62 } 63 64 // javadoc: KeyPoint::KeyPoint(x, y, _size, _angle) 65 public KeyPoint(float x, float y, float _size, float _angle) 66 { 67 this(x, y, _size, _angle, 0, 0, -1); 68 } 69 70 // javadoc: KeyPoint::KeyPoint(x, y, _size) 71 public KeyPoint(float x, float y, float _size) 72 { 73 this(x, y, _size, -1, 0, 0, -1); 74 } 75 76 @Override 77 public String toString() { 78 return "KeyPoint [pt=" + pt + ", size=" + size + ", angle=" + angle 79 + ", response=" + response + ", octave=" + octave 80 + ", class_id=" + class_id + "]"; 81 } 82 83 } 84
