Lookup values of an array based on sequences and/or arrays.  
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| class | features | 
|  | Represents a feature returned by a feature detector.  More... 
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Lookup values of an array based on sequences and/or arrays. 
 
◆ af_create_features()
Creates a new af_feature object with num features. 
- Parameters
- 
  
    | [out] | feat | The new feature that will be created |  | [in] | num | The number of features that will be in the new features object |  
 
- Returns
- AF_SUCCESS if successful 
 
 
◆ af_get_features_num()
Returns the number of features associated with this object. 
- Parameters
- 
  
    | [out] | num | The number of features in the object |  | [in] | feat | The feature whose count will be returned |  
 
 
 
◆ af_get_features_orientation()
Returns the orientations of the features. 
- Parameters
- 
  
    | [out] | orientation | An array with the orientations of the features |  | [in] | feat | The features object |  
 
 
 
◆ af_get_features_score()
Returns the scores of the features. 
- Parameters
- 
  
    | [out] | score | An array with scores of the features |  | [in] | feat | The features object |  
 
 
 
◆ af_get_features_size()
Returns the size of the features. 
- Parameters
- 
  
    | [out] | size | An array with the sizes of the features |  | [in] | feat | The features object |  
 
 
 
◆ af_get_features_xpos()
Returns the x positions of the features. 
- Parameters
- 
  
    | [out] | out | An array with all x positions of the features |  | [in] | feat | The features object |  
 
 
 
◆ af_get_features_ypos()
Returns the y positions of the features. 
- Parameters
- 
  
    | [out] | out | An array with all y positions of the features |  | [in] | feat | The features object |  
 
 
 
◆ af_release_features()
Reduces the reference count of each of the features. 
- Parameters
- 
  
    | [in] | feat | The features object whose reference count will be reduced |  
 
 
 
◆ af_retain_features()
Increases the reference count of the feature and all of its associated arrays. 
- Parameters
- 
  
    | [out] | out | The reference to the incremented array |  | [in] | feat | The features object whose will be incremented object |  
 
- Returns
- AF_SUCCESS if successful