It represents PrintCapture with ThumbsCapture. More...

#include <PrintCapture.h>

Collaboration diagram for ThumbsCapture:

Public Member Functions
std::vector< std::shared_ptr< PrintSegment > >	SegmentWith (PrintCaptureSegmentation &detector) final
	It segments thumbs capture.
std::shared_ptr< PrintCapture >	ChangeDpiTo (ImageDpi targetDpi) const
	Create new PrintCapture with given DPI.
std::shared_ptr< PrintCapture >	ChangeDpiTo (const Image::ImageResampler &resampler) const
	Create new PrintCapture using provided DPI-change configuration.
std::shared_ptr< Image >	CropPrint (const Rectangle &rectangle, const PrintCropConfiguration &cfg) const final
	It crops image with given rectangle and background color.
std::shared_ptr< Image >	CropPrint (const Rectangle &rectangle) const
	It crops image with given rectangle by default PrintCropConfiguration.
std::shared_ptr< Image >	Draw (const std::vector< std::shared_ptr< PrintSegment > > &segments, const ImageShapeAttributes &attr) const
	It draws rounding boxes into PrintCapture.
void	WriteTo (Writer &writer) const final
	Function serializes print via provided Writer.
uint8_t	CalculateIntensity ()
	Function calculates the image intensity.

Static Public Member Functions
static std::shared_ptr< ThumbsCapture >	Create (std::shared_ptr< Image > img, const PrintAttributes &pa=PrintAttributes(), std::shared_ptr< PrintExecutor > executor=GlobalPrintExecutor::Get())
	Constructor sets image and attributes of ThumbsCapture.

Public Attributes
const std::shared_ptr< Image >	image
	Provides PrintCapture Image.
const PrintAttributes	printAttributes
	Provides PrintCapture Image.

Detailed Description

It represents PrintCapture with ThumbsCapture.

See Description with examples.

Member Function Documentation

◆ CalculateIntensity()

uint8_t CalculateIntensity ( )

inlineinherited

Function calculates the image intensity.

The intensity value is low for dry fingerprints (and for low pressure prints) and high for wet fingerprints (or for high pressure prints).

Returns: image intensity in range 0 (lowest intensity, dry finger, low pressure) to 100 (highest intensity, wet finger, high pressure)

Exceptions

EnrollmentException when fails to calculate intensity

References Print::CalculateIntensity(), and image.

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◆ ChangeDpiTo() [1/2]

std::shared_ptr< PrintCapture > ChangeDpiTo ( const Image::ImageResampler & resampler ) const

inlinenodiscardinherited

Create new PrintCapture using provided DPI-change configuration.

It creates new print with changed image dpi by function Image::ChangeDpiTo() and with same attributes using a DPI-change configuration.

Parameters

resampler image resampler

Returns: print capture with given DPI

Exceptions

ImageException	when there is an processing error
EnrollmentInvalidArgumentException	when resize algorithm is NIST and print capture image is not single-channel grayscale

References Create(), image, and printAttributes.

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◆ ChangeDpiTo() [2/2]

std::shared_ptr< PrintCapture > ChangeDpiTo ( ImageDpi targetDpi ) const

inlinenodiscardinherited

Create new PrintCapture with given DPI.

It creates new print with changed image dpi by function Image::ChangeDpiTo() and with same position and attributes. The function uses Standard resizing algorithm. See BicubicImageResampler.

Parameters

targetDpi DPI of new print.

Returns: print with target DPI

Exceptions

ImageException	when it is not possible to change image DPI
EnrollmentInvalidArgumentException	when targetDpi is 0

References ChangeDpiTo().

Referenced by ChangeDpiTo().

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◆ Create()

std::shared_ptr< ThumbsCapture > Create	(	std::shared_ptr< Image >	img,
		const PrintAttributes &	pa = PrintAttributes(),
		std::shared_ptr< PrintExecutor >	executor = GlobalPrintExecutor::Get() )

inlinestatic

Constructor sets image and attributes of ThumbsCapture.

Parameters

img	Thumbs image
pa	optional PrintAttributes
executor	PrintExecutor to use for PrintCapture functionality execution

Exceptions

NullArgumentException when image is null

Returns: created ThumbsCapture object

References GlobalPrintExecutor::Get().

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◆ CropPrint() [1/2]

std::shared_ptr< Image > CropPrint ( const Rectangle & rectangle ) const

inlinenodiscardinherited

It crops image with given rectangle by default PrintCropConfiguration.

Parameters

rectangle Rectangle to be cropped

Returns: cropped Image

References CropPrint().

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◆ CropPrint() [2/2]

std::shared_ptr< Image > CropPrint	(	const Rectangle &	rectangle,
		const PrintCropConfiguration &	cfg ) const

inlinenodiscardfinalinherited

It crops image with given rectangle and background color.

Parameters

rectangle	Rectangle to be cropped
cfg	configuration of print cropping

Returns: Image cropped image

References image.

Referenced by CropPrint().

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◆ Draw()

std::shared_ptr< Image > Draw	(	const std::vector< std::shared_ptr< PrintSegment > > &	segments,
		const ImageShapeAttributes &	attr ) const

inlineinherited

It draws rounding boxes into PrintCapture.

Parameters

segments	detected segments
attr	ImageShapeAttributes of rounding boxes

Returns: Image with drawn rounding boxes

References image.

◆ SegmentWith()

std::vector< std::shared_ptr< PrintSegment > > SegmentWith ( PrintCaptureSegmentation & detector )

inlinefinalvirtual

It segments thumbs capture.

It uses PrintDetector::Segment function to find print segments. It guess thumbs position. When 2 segments are detected then first is left and second is right thumb. Otherwise positions are unknown.

Parameters

detector PrintDetector to detect PrintSegments in ThumbsCapture

Returns: detected print segments

Exceptions

EnrollmentException from PrintDetector

Reimplemented from PrintCapture.

References PrintCapture::SegmentWith().

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◆ WriteTo()

void WriteTo ( Writer & writer ) const

inlinefinalvirtualinherited

Function serializes print via provided Writer.

Parameters

writer used to serialize PrintCapture.

Implements Serializable.

References image, and printAttributes.

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

Print/PrintCapture.h

Public Member Functions

Static Public Member Functions

Public Attributes

Detailed Description

Member Function Documentation

◆ CalculateIntensity()

◆ ChangeDpiTo() [1/2]

◆ ChangeDpiTo() [2/2]

◆ Create()

◆ CropPrint() [1/2]

◆ CropPrint() [2/2]

◆ Draw()

◆ SegmentWith()

◆ WriteTo()