General configuration of PrintDetector. More...

#include <PrintDetector.h>

Collaboration diagram for PrintDetectorConfig:

Public Member Functions
void	SetNarrowFingerPreference (bool expectNarrow)
	Informs the print detector to anticipate narrow fingers.
bool	GetNarrowFingerPreference () const
	Retrieves information about the expected narrowness of detected fingers.
void	WriteTo (Writer &writer) const override
	Function serializes configuration via provided Writer.
	PrintDetectorConfig ()=default
	Default PrintDetector configuration is.

Detailed Description

General configuration of PrintDetector.

Constructor & Destructor Documentation

◆ PrintDetectorConfig()

PrintDetectorConfig ( )

default

Default PrintDetector configuration is.

expectNarrowFinger - true

References PrintDetectorConfig().

Referenced by PrintDetectorConfig().

Here is the call graph for this function:

Here is the caller graph for this function:

Member Function Documentation

◆ GetNarrowFingerPreference()

bool GetNarrowFingerPreference ( ) const

inlinenodiscard

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

◆ SetNarrowFingerPreference()

void SetNarrowFingerPreference ( bool expectNarrow )

inline

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.