Classes and functions that contribute to the calculation of NFIQ2 scores. More...

Namespaces
	ActionableQualityFeedbackIdentifier
	Contains strings corresponding to Actionable Feedback Scores.

	ActionableQualityFeedbackThreshold
	Contains doubles corresponding to Actionable Feedback Thresholds.

	QualityFeatures

	Version

Classes
class	Algorithm
	Applies trained random forest parameters to quality features, computing an overall quality score (i.e., NFIQ2). More...

class	Data
	Binary data. More...

class	Exception
	Exceptions thrown from NFIQ2 functions. More...

class	FingerprintImageData
	Binary data representing a decompressed fingerprint image, canonically encoded as per ISO/IEC 19794-4:2005. More...

struct	actionable_quality_feedback_t
	ActionableQualityFeedback structure. More...

struct	image_id_t
	This type represents the ID of an image. More...

struct	feature_data_t
	This type represents a structure for quality feature data. More...

struct	feature_speed_t
	This type represents a structure for timing information of features. More...

struct	quality_feature_result_t
	This type represents the result of a quality feature extraction. More...

struct	comparison_result_t
	This type represents the result of a comparison scores computation. More...

struct	utility_result_t
	This type represents the result of a utility value calculation. More...

struct	utility_sample_t
	This type represents a sample for utility computation (image ID + utility result). More...

struct	quality_feature_sample_t
	This type represents the content of a quality feature exchange file. More...

struct	comparison_probe_result_t
	This type represents the structure of a probe result for comparison scores computation. More...

struct	comparison_scores_sample_t
	This type represents the structure of a comparison scores sample. More...

class	ModelInfo
	Information about a random forest parameter model. More...

class	Timer
	Used to calculate speed of internal operations. More...

Typedefs
typedef enum NFIQ2::image_resolution_e	ImageResolution
	Resolution of an image in pixels per inch (PPI). More...

using	ActionableQualityFeedback = actionable_quality_feedback_t

typedef enum NFIQ2::feature_data_type_e	QualityFeatureDataType
	This type represents the type of quality feature data. More...

typedef struct NFIQ2::image_id_t	ImageID
	This type represents the ID of an image. More...

typedef struct NFIQ2::feature_data_t	QualityFeatureData
	This type represents a structure for quality feature data. More...

typedef struct NFIQ2::feature_speed_t	QualityFeatureSpeed
	This type represents a structure for timing information of features. More...

typedef struct NFIQ2::quality_feature_result_t	QualityFeatureResult
	This type represents the result of a quality feature extraction. More...

typedef struct NFIQ2::comparison_result_t	ComparisonResult
	This type represents the result of a comparison scores computation. More...

typedef struct NFIQ2::utility_result_t	UtilityResult
	This type represents the result of a utility value calculation. More...

typedef struct NFIQ2::utility_sample_t	UtilitySample
	This type represents a sample for utility computation (image ID + utility result). More...

typedef struct NFIQ2::quality_feature_sample_t	QualityFeatureSample
	This type represents the content of a quality feature exchange file. More...

typedef struct NFIQ2::comparison_probe_result_t	ComparisonProbeResult
	This type represents the structure of a probe result for comparison scores computation. More...

typedef struct NFIQ2::comparison_scores_sample_t	ComparisonScoresSample
	This type represents the structure of a comparison scores sample. More...

Enumerations
enum class	ErrorCode { UnknownError , NotEnoughMemory , BadArguments , FeatureCalculationError , CannotWriteToFile , CannotReadFromFile , NoDataAvailable , CannotDecodeBase64 , InvalidConfiguration , MachineLearningError , FJFX_CannotCreateContext , FJFX_CannotCreateFeatureSet , FJFX_NoFeatureSetCreated , InvalidNFIQ2Score , InvalidImageSize }
	Error codes used within the NFIQ2 namespace. More...

enum	image_resolution_e { e_ImageResolution_500dpi = 500 , e_ImageResolution_1000dpi = 1000 }
	Resolution of an image in pixels per inch (PPI). More...

enum	feature_data_type_e { e_QualityFeatureDataTypeUnknown = 0 , e_QualityFeatureDataTypeDouble = 1 , e_QualityFeatureDataTypeBinary = 2 }
	This type represents the type of quality feature data. More...

Detailed Description

Classes and functions that contribute to the calculation of NFIQ2 scores.

Typedef Documentation

◆ ImageResolution

typedef enum NFIQ2::image_resolution_e NFIQ2::ImageResolution

Resolution of an image in pixels per inch (PPI).

◆ ActionableQualityFeedback

using NFIQ2::ActionableQualityFeedback = typedef actionable_quality_feedback_t

Definition at line 40 of file nfiq2_interfacedefinitions.hpp.

◆ QualityFeatureDataType

typedef enum NFIQ2::feature_data_type_e NFIQ2::QualityFeatureDataType

This type represents the type of quality feature data.

◆ ImageID

typedef struct NFIQ2::image_id_t NFIQ2::ImageID

This type represents the ID of an image.

◆ QualityFeatureData

typedef struct NFIQ2::feature_data_t NFIQ2::QualityFeatureData

This type represents a structure for quality feature data.

◆ QualityFeatureSpeed

typedef struct NFIQ2::feature_speed_t NFIQ2::QualityFeatureSpeed

This type represents a structure for timing information of features.

◆ QualityFeatureResult

typedef struct NFIQ2::quality_feature_result_t NFIQ2::QualityFeatureResult

This type represents the result of a quality feature extraction.

◆ ComparisonResult

typedef struct NFIQ2::comparison_result_t NFIQ2::ComparisonResult

This type represents the result of a comparison scores computation.

◆ UtilityResult

typedef struct NFIQ2::utility_result_t NFIQ2::UtilityResult

This type represents the result of a utility value calculation.

◆ UtilitySample

typedef struct NFIQ2::utility_sample_t NFIQ2::UtilitySample

This type represents a sample for utility computation (image ID + utility result).

◆ QualityFeatureSample

typedef struct NFIQ2::quality_feature_sample_t NFIQ2::QualityFeatureSample

This type represents the content of a quality feature exchange file.

◆ ComparisonProbeResult

typedef struct NFIQ2::comparison_probe_result_t NFIQ2::ComparisonProbeResult

This type represents the structure of a probe result for comparison scores computation.

◆ ComparisonScoresSample

typedef struct NFIQ2::comparison_scores_sample_t NFIQ2::ComparisonScoresSample

This type represents the structure of a comparison scores sample.

Enumeration Type Documentation

◆ ErrorCode

enum NFIQ2::ErrorCode

strong

Error codes used within the NFIQ2 namespace.

Enumerator
UnknownError
NotEnoughMemory
BadArguments
FeatureCalculationError
CannotWriteToFile
CannotReadFromFile
NoDataAvailable
CannotDecodeBase64
InvalidConfiguration
MachineLearningError
FJFX_CannotCreateContext
FJFX_CannotCreateFeatureSet
FJFX_NoFeatureSetCreated
InvalidNFIQ2Score
InvalidImageSize

Definition at line 11 of file nfiq2_exception.hpp.

◆ image_resolution_e

enum NFIQ2::image_resolution_e