AlgorithmicSegmentation::Config Class Reference

Configuration for AlgorithmicSegmentation. More...

#include <PrintDetector.h>

Collaboration diagram for AlgorithmicSegmentation::Config:

Public Member Functions
void	WriteTo (Writer &writer) const final
	Function serializes configuration via provided Writer.
void	SetMaxRotation (unsigned int value)
	It sets maximum rotation of fingers in the slap image.
unsigned int	GetMaxRotation () const
	It gets maximum rotation of fingers in the slap image.
void	EnableNoiseReduction ()
	It enables noise reduction before segmentation.
bool	IsNoiseReduction () const
	It returns true when noise reduction before segmentation is enabled.
	Config ()=default
	Constructs default configuration.
void	SetNarrowFingerPreference (bool expectNarrow)
	Informs the print detector to anticipate narrow fingers.
bool	GetNarrowFingerPreference () const
	Retrieves information about the expected narrowness of detected fingers.

Static Public Member Functions
static Config	Default ()
	Provides default config.

Detailed Description

Configuration for AlgorithmicSegmentation.

Constructor & Destructor Documentation

Config()

Config ( )

default

Constructs default configuration.

Default Algorithmic segmentation configuration is

• maxRotation - 45
• reduceNoise - false

• expectNarrowFinger - true

References Config().

Referenced by Config(), and Default().

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Member Function Documentation

Default()

Config Default ( )

inlinestatic

Provides default config.

Default Algorithmic segmentation configuration is

• maxRotation - 45
• reduceNoise - false

• expectNarrowFinger - true

Returns

default config

References Config().

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GetMaxRotation()

unsigned int GetMaxRotation ( ) const

inlinenodiscard

It gets maximum rotation of fingers in the slap image.

Returns

maximum rotation of fingers in the slap image

GetNarrowFingerPreference()

bool GetNarrowFingerPreference ( ) const

inlinenodiscardinherited

Retrieves information about the expected narrowness of detected fingers.

Returns

true if narrow detected fingers are expected

false if narrow detected fingers are not expected

IsNoiseReduction()

bool IsNoiseReduction ( ) const

inlinenodiscard

It returns true when noise reduction before segmentation is enabled.

Returns

true when noise reduction is enabled

SetMaxRotation()

void SetMaxRotation ( unsigned int value )

inline

It sets maximum rotation of fingers in the slap image.

Parameters

value

indicating maximum rotation of fingers in the slap image. Value is in degrees. Valid range <0,45>.

Exceptions

EnrollmentInvalidArgumentException

when value is not in range

SetNarrowFingerPreference()

void SetNarrowFingerPreference ( bool expectNarrow )

inlineinherited

Informs the print detector to anticipate narrow fingers.

It recommends returning a narrow bounding rectangle even if the detected finger is initially identified as wide. This adjustment is particularly relevant in cases where the finger is rotated, causing a misalignment between the top-left rectangle point and the corresponding point from the finger's perspective. The function then adjusts the coordinates to narrow down the representation of the finger, estimating rectangle points (top-left, top-right, bottom-right, bottom-left) based on the fingerprint's viewpoint. Since there is limited information about the orientation of the fingerprint, this estimation involves some guesswork. It's important to note that the detector provides only the rectangle without indicating the direction of the finger within the bounding rectangle. This means that after alignment, some fingerprints may appear upside down. The recommended adjustment of the top-left point from the finger's perspective plays a crucial role in aligning the cropped finger accurately.

Parameters

expectNarrow

When set to true, the detector will consistently output a narrow bounding rectangle for the detected finger. In contrast, if expectNarrow is false, the detector will refrain from modifying the rectangle and will maintain its original dimensions.

WriteTo()

void WriteTo ( Writer & writer ) const

inlinefinalvirtual

Function serializes configuration via provided Writer.

Parameters

writer

used to serialize Config.

Implements Serializable.

References PrintDetectorConfig::WriteTo().

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The documentation for this class was generated from the following file:

• Print/PrintDetector.h