features

Lookup values of an array based on sequences and/or arrays. More...

Data Structures
class	features
	Represents a feature returned by a feature detector. More...

Functions
AFAPI af_err	af_create_features (af_features *feat, dim_t num)
	Creates a new af_feature object with num features.
AFAPI af_err	af_retain_features (af_features *out, const af_features feat)
	Increases the reference count of the feature and all of its associated arrays.
AFAPI af_err	af_get_features_num (dim_t *num, const af_features feat)
	Returns the number of features associated with this object.
AFAPI af_err	af_get_features_xpos (af_array *out, const af_features feat)
	Returns the x positions of the features.
AFAPI af_err	af_get_features_ypos (af_array *out, const af_features feat)
	Returns the y positions of the features.
AFAPI af_err	af_get_features_score (af_array *score, const af_features feat)
	Returns the scores of the features.
AFAPI af_err	af_get_features_orientation (af_array *orientation, const af_features feat)
	Returns the orientations of the features.
AFAPI af_err	af_get_features_size (af_array *size, const af_features feat)
	Returns the size of the features.
AFAPI af_err	af_release_features (af_features feat)
	Reduces the reference count of each of the features.

Detailed Description

Lookup values of an array based on sequences and/or arrays.

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Function Documentation

af_create_features()

AFAPI af_err af_create_features	(	af_features *	feat,
		dim_t	num )

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()

AFAPI af_err af_get_features_num	(	dim_t *	num,
		const af_features	feat )

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()

AFAPI af_err af_get_features_orientation	(	af_array *	orientation,
		const af_features	feat )

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()

AFAPI af_err af_get_features_score	(	af_array *	score,
		const af_features	feat )

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()

AFAPI af_err af_get_features_size	(	af_array *	size,
		const af_features	feat )

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()

AFAPI af_err af_get_features_xpos	(	af_array *	out,
		const af_features	feat )

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()

AFAPI af_err af_get_features_ypos	(	af_array *	out,
		const af_features	feat )

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()

AFAPI af_err af_release_features

(

af_features

feat

)

Reduces the reference count of each of the features.

Parameters

[in]

feat

The features object whose reference count will be reduced

af_retain_features()

AFAPI af_err af_retain_features	(	af_features *	out,
		const af_features	feat )

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