BarcodeSvmDetectorSettings Class Reference

Inherits BaseJavaClass.

Public Member Functions
	__construct (int $aType)
	getScanWindowSizes ()
	setScanWindowSizes (array $value)
	getSimilarityCoef ()
	setSimilarityCoef (int $value)
	getRegionLikelihoodThresholdPercent ()
	setRegionLikelihoodThresholdPercent (float $value)
	getSkipDiagonalSearch ()
	setSkipDiagonalSearch (bool $value)
	getMedianFilterWindowSize ()
	setMedianFilterWindowSize (int $value)
	getJavaClass ()
	getJavaClassName ()
	isNull ()
	printJavaClassName ()

Static Public Member Functions
static	construct ($javaClass)
static	getHighPerformance ()
static	getNormalQuality ()
static	getHighQuality ()
static	getMaxQuality ()

Protected Member Functions
	init ()
	setJavaClass ($javaClass)

Detailed Description

Barcode detector settings.

Constructor & Destructor Documentation

__construct()

BarcodeSvmDetectorSettings::__construct

(

int

$aType

)

Member Function Documentation

construct()

static BarcodeSvmDetectorSettings::construct (   $javaClass )

static

getHighPerformance()

static BarcodeSvmDetectorSettings::getHighPerformance ( )

static

High performance detection preset.

Returns

‪BarcodeSvmDetectorSettings Default for QualitySettings::PresetType::HighPerformance

Exceptions

BarcodeException

getHighQuality()

static BarcodeSvmDetectorSettings::getHighQuality ( )

static

High quality detection preset.

Returns

‪BarcodeSvmDetectorSettings Default for QualitySettings.PresetType.HighQualityDetection and QualitySettings::PresetType::HighQuality

Exceptions

BarcodeException

getJavaClass()

BaseJavaClass::getJavaClass ( )

inherited

getJavaClassName()

BaseJavaClass::getJavaClassName ( )

inherited

getMaxQuality()

static BarcodeSvmDetectorSettings::getMaxQuality ( )

static

Max quality detection preset.

Returns

‪BarcodeSvmDetectorSettings Default for QualitySettings.PresetType.MaxQualityDetection and QualitySettings::PresetType::MaxBarCodes

Exceptions

BarcodeException

getMedianFilterWindowSize()

BarcodeSvmDetectorSettings::getMedianFilterWindowSize

(

)

Window size for median smoothing.

Returns

‪int Typical values are 3 or 4. 0 means no median smoothing. Default value is 0. Median filter window size must be between [0, 10]

Exceptions

BarcodeException

getNormalQuality()

static BarcodeSvmDetectorSettings::getNormalQuality ( )

static

Normal quality detection preset.

Returns

‪BarcodeSvmDetectorSettings Default for QualitySettings::PresetType::NormalQuality

Exceptions

BarcodeException

getRegionLikelihoodThresholdPercent()

BarcodeSvmDetectorSettings::getRegionLikelihoodThresholdPercent

(

)

Sets threshold for detected regions that may contain barcodes.

Returns

‪int Value 0.7 means that bottom 70% of possible regions are filtered out and not processed further. Region likelihood threshold must be between [0.05, 0.9] Use high values for clear images with few barcodes. Use low values for images with many barcodes or for noisy images. Low value may lead to a bigger recognition time.

Exceptions

BarcodeException

getScanWindowSizes()

BarcodeSvmDetectorSettings::getScanWindowSizes

(

)

Scan window sizes in pixels.

Allowed sizes are 10, 15, 20, 25, 30. Scanning with small window size takes more time and provides more accuracy but may fail in detecting very big barcodes. Combining of several window sizes can improve detection quality.

getSimilarityCoef()

BarcodeSvmDetectorSettings::getSimilarityCoef

(

)

Similarity coefficient depends on how homogeneous barcodes are.

Use high value for for clear barcodes. Use low values to detect barcodes that ara partly damaged or not lighten evenly. Similarity coefficient must be between [0.5, 0.9]

getSkipDiagonalSearch()

BarcodeSvmDetectorSettings::getSkipDiagonalSearch

(

)

Allows detector to skip search for diagonal barcodes.

Returns

‪bool Setting it to false will increase detection time but allow to find diagonal barcodes that can be missed otherwise. Enabling of diagonal search leads to a bigger detection time.

Exceptions

BarcodeException

init()

BarcodeSvmDetectorSettings::init ( )

protected

Reimplemented from BaseJavaClass.

isNull()

BaseJavaClass::isNull ( )

inherited

printJavaClassName()

BaseJavaClass::printJavaClassName ( )

inherited

setJavaClass()

BaseJavaClass::setJavaClass (   $javaClass )

protectedinherited

setMedianFilterWindowSize()

BarcodeSvmDetectorSettings::setMedianFilterWindowSize

(

int

$value

)

Window size for median smoothing.

Parameters

int

$value

‪Typical values are 3 or 4. 0 means no median smoothing. Default value is 0. Median filter window size must be between [0, 10]

Exceptions

BarcodeException

setRegionLikelihoodThresholdPercent()

BarcodeSvmDetectorSettings::setRegionLikelihoodThresholdPercent

(

float

$value

)

Sets threshold for detected regions that may contain barcodes.

Parameters

float

$value

‪Value 0.7 means that bottom 70% of possible regions are filtered out and not processed further. Region likelihood threshold must be between [0.05, 0.9] Use high values for clear images with few barcodes. Use low values for images with many barcodes or for noisy images. Low value may lead to a bigger recognition time.

Exceptions

BarcodeException

setScanWindowSizes()

BarcodeSvmDetectorSettings::setScanWindowSizes

(

array

$value

)

Scan window sizes in pixels.

Allowed sizes are 10, 15, 20, 25, 30. Scanning with small window size takes more time and provides more accuracy but may fail in detecting very big barcodes. Combining of several window sizes can improve detection quality.

setSimilarityCoef()

BarcodeSvmDetectorSettings::setSimilarityCoef

(

int

$value

)

Similarity coefficient depends on how homogeneous barcodes are.

Parameters

int

$value

‪Use high value for for clear barcodes. Use low values to detect barcodes that ara partly damaged or not lighten evenly. Similarity coefficient must be between [0.5, 0.9]

Exceptions

BarcodeException

setSkipDiagonalSearch()

BarcodeSvmDetectorSettings::setSkipDiagonalSearch

(

bool

$value

)

Allows detector to skip search for diagonal barcodes.

Parameters

bool

$value

‪Setting it to false will increase detection time but allow to find diagonal barcodes that can be missed otherwise. Enabling of diagonal search leads to a bigger detection time.

Exceptions

BarcodeException