Represents the QR code reader, that is a context for the detection and decoding of QR codes, represented by EQRCode objects. More...

Inheritance diagram for eVision.EQRCodeReader:

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Collaboration diagram for eVision.EQRCodeReader:

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Public Member Functions
	EQRCodeReader ()
	Creates an EQRCodeReader object.
	EQRCodeReader (eVision.EQRCodeReader other)
	Creates an EQRCodeReader object.
eVision.EQRCodeGeometry[]	Detect ()
eVision.EQRCode	Decode (eVision.EQRCodeGeometry geometry)
eVision.EQRCode[]	Read ()
	Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.
eVision.EQRCode[]	Read (eVision.EROIBW8 roi)
	Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.
eVision.EQRCode[]	Read (eVision.EROIBW8 roi, eVision.ERegion region)
	Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.
eVision.EQRCode[]	Read (eVision.EROIBW8 roi, eVision.ERegion region, eVision.EFrame frame)
	Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.
eVision.EQRCode[]	Read (eVision.EROIBW8 roi, eVision.EFrame frame)
	Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.
eVision.EQRCodeGrid	Read (eVision.EROIBW8 roi, int numCellsX, int numCellsY, float extension)
	Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.
eVision.EQRCodeGrid	Read (eVision.EROIBW8 roi, int numCellsX, int numCellsY)
	Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.
eVision.EQRCodeGrid	Read (eVision.EROIBW8 roi, eVision.ERectangleRegion area, int numCellsX, int numCellsY, float extension)
	Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.
eVision.EQRCodeGrid	Read (eVision.EROIBW8 roi, eVision.ERectangleRegion area, int numCellsX, int numCellsY)
	Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.
eVision.EQRCodeGrid	Read (eVision.EROIBW8 roi, eVision.ERectangleRegion area, eVision.EQRCodeGrid grid, float extension)
	Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.
eVision.EQRCodeGrid	Read (eVision.EROIBW8 roi, eVision.ERectangleRegion area, eVision.EQRCodeGrid grid)
	Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.
eVision.EQRCodeGrid	Read (eVision.EROIBW8 roi, eVision.ERectangleRegion area, eVision.EFrame frame, int numCellsX, int numCellsY, float extension)
	Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.
eVision.EQRCodeGrid	Read (eVision.EROIBW8 roi, eVision.ERectangleRegion area, eVision.EFrame frame, int numCellsX, int numCellsY)
	Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.
eVision.EQRCodeGrid	Read (eVision.EROIBW8 roi, eVision.ERectangleRegion area, eVision.EFrame frame, eVision.EQRCodeGrid grid, float extension)
	Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.
eVision.EQRCodeGrid	Read (eVision.EROIBW8 roi, eVision.ERectangleRegion area, eVision.EFrame frame, eVision.EQRCodeGrid grid)
	Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.
eVision.EQRCodeGrid	Read (eVision.EROIBW8 roi, eVision.EGrid grid)
	Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.
eVision.EQRCodeGrid	Read (eVision.EROIBW8 roi, eVision.EGrid grid, eVision.EFrame frame)
	Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.
void	Load (string path)
	Load the configuration for this EQRCodeReader instance.
void	Load (eVision.ESerializer serializer)
	Load the configuration for this EQRCodeReader instance.
void	Save (string path)
	Save the configuration for this EQRCodeReader instance.
void	Save (eVision.ESerializer serializer)
	Save the configuration for this EQRCodeReader instance.

Properties
eVision.EROIBW8	SearchField `[set]`
	Search field for the QR code reader.
eVision.EQRCodeScanPrecision	ScanPrecision `[get, set]`
	Precision of the EQRCodeReader.EQRCodeReader when scanning the search field.
eVision.EQRDetectionTradeOff	DetectionTradeOff `[get, set]`
	This setting controls the trade-off between computation speed versus reliability of the algorithm and particularly of the detection methods.
float	MinimumScore `[get, set]`
	Minimum pattern finder score that must be reached to consider that a finder pattern has been found.
float	MinimumIsotropy `[get, set]`
	QR code minimum isotropy.
eVision.EQRCodePerspectiveMode	PerspectiveMode `[get, set]`
int	DetectionMethod `[get, set]`
	Sets the detection method for finding QR codes. The method can be any combination of the EQRDetectionMethod enums.
int	ForegroundDetectionThreshold `[get, set]`
	Foreground detection threshold. This parameter determines by how many grayscale-values a pixel should deviate from its local background to be considered part of the foreground.
uint	AdaptiveThresholdHalfKernelSize `[get, set]`
	Sets the half kernel size used to compute the threshold in EQRDetectionMethod.EQRDetectionMethod_AdaptiveThreshold.
bool	ComputeAdaptiveThresholdHalfKernelSizeFromImage `[get, set]`
	Sets whether the half kernel size used to compute the threshold in EQRDetectionMethod.EQRDetectionMethod_AdaptiveThreshold is computed from image size or set by EQRCodeReader.AdaptiveThresholdHalfKernelSize.
bool	FilterOutUnreliablyDecodedQRCodes `[get, set]`
	Activate or deactivate the filtering of unreliably decoded QR codes.
float	CellPolarityConfidenceThreshold `[get, set]`
	Sets the minimum cell polarity confidence threshold.
bool	ComputeGrading `[get, set]`
	Allows to choose whether the grading properties of the EQRCode object will be computed by the EQRCodeReader.Read method. The default setting for this property is false.
eVision.EQRCodeModel[]	SearchedModels `[get, set]`
	QR code models to be searched for.
uint	MinimumVersion `[get, set]`
	Minimum version of QR codes to be searched for.
uint	MaximumVersion `[get, set]`
	Maximum version of QR codes to be searched for.
ulong	TimeOut `[get, set]`
	Time-out for the EQRCodeReader.Read method.
uint	MaxNumCodes `[get, set]`
	Maximum number of QR codes to find in a single Image/ROI.

Detailed Description

Represents the QR code reader, that is a context for the detection and decoding of QR codes, represented by EQRCode objects.

License(s): EasyQRCode

Constructor & Destructor Documentation

◆ EQRCodeReader() [1/2]

eVision.EQRCodeReader.EQRCodeReader ( )

Creates an EQRCodeReader object.

◆ EQRCodeReader() [2/2]

eVision.EQRCodeReader.EQRCodeReader ( eVision.EQRCodeReader other )

Creates an EQRCodeReader object.

Parameters

other Another EQRCodeReader object to be copied in the new EQRCodeReader object.

Member Function Documentation

◆ Decode()

eVision.EQRCode eVision.EQRCodeReader.Decode ( eVision.EQRCodeGeometry geometry )

◆ Detect()

eVision.EQRCodeGeometry[] eVision.EQRCodeReader.Detect ( )

◆ Load() [1/2]

void eVision.EQRCodeReader.Load ( eVision.ESerializer serializer )

Load the configuration for this EQRCodeReader instance.

Parameters

serializer The given ESerializer, it must have been created for reading.

◆ Load() [2/2]

void eVision.EQRCodeReader.Load ( string path )

Load the configuration for this EQRCodeReader instance.

Parameters

path	The path from which to load the configuration.

◆ Read() [1/17]

eVision.EQRCode[] eVision.EQRCodeReader.Read ( )

Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.

The grid overload allows you to disable some cells of the grid if those cells are not supposed to contain QR Codes. See the EQRCodeGrid class documentation for more information.

Deprecated

Use the overload taking an EROIBW8 as parameter.

Deprecated in version 24.6. Scheduled to be removed in version 27.6.

◆ Read() [2/17]

eVision.EQRCode[] eVision.EQRCodeReader.Read ( eVision.EROIBW8 roi )

Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.

Parameters

roi	The ROI in which the QR codes have to be found.

The grid overload allows you to disable some cells of the grid if those cells are not supposed to contain QR Codes. See the EQRCodeGrid class documentation for more information.

◆ Read() [3/17]

eVision.EQRCode[] eVision.EQRCodeReader.Read	(	eVision.EROIBW8	roi,
		eVision.EFrame	frame )

Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.

Parameters

roi	The ROI in which the QR codes have to be found.
frame	Reference frame of the input image

The grid overload allows you to disable some cells of the grid if those cells are not supposed to contain QR Codes. See the EQRCodeGrid class documentation for more information.

◆ Read() [4/17]

eVision.EQRCodeGrid eVision.EQRCodeReader.Read	(	eVision.EROIBW8	roi,
		eVision.EGrid	grid )

Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.

Parameters

roi	The ROI in which the QR codes have to be found.
grid	Grid with cell disabling capabilities

The grid overload allows you to disable some cells of the grid if those cells are not supposed to contain QR Codes. See the EQRCodeGrid class documentation for more information.

◆ Read() [5/17]

eVision.EQRCodeGrid eVision.EQRCodeReader.Read	(	eVision.EROIBW8	roi,
		eVision.EGrid	grid,
		eVision.EFrame	frame )

Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.

Parameters

roi	The ROI in which the QR codes have to be found.
grid	Grid with cell disabling capabilities
frame	Reference frame of the input image

The grid overload allows you to disable some cells of the grid if those cells are not supposed to contain QR Codes. See the EQRCodeGrid class documentation for more information.

◆ Read() [6/17]

eVision.EQRCodeGrid eVision.EQRCodeReader.Read	(	eVision.EROIBW8	roi,
		eVision.ERectangleRegion	area,
		eVision.EFrame	frame,
		eVision.EQRCodeGrid	grid )

Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.

Parameters

roi	The ROI in which the QR codes have to be found.
area	Rectangular Region used as the full grid area
frame	Reference frame of the input image
grid	Grid with cell disabling capabilities

The grid overload allows you to disable some cells of the grid if those cells are not supposed to contain QR Codes. See the EQRCodeGrid class documentation for more information.

Deprecated

Deprecated, use overloads taking an EGrid argument instead.

Deprecated in version 26.6. Scheduled to be removed in version 27.6.

◆ Read() [7/17]

eVision.EQRCodeGrid eVision.EQRCodeReader.Read	(	eVision.EROIBW8	roi,
		eVision.ERectangleRegion	area,
		eVision.EFrame	frame,
		eVision.EQRCodeGrid	grid,
		float	extension )

Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.

Parameters

roi	The ROI in which the QR codes have to be found.
area	Rectangular Region used as the full grid area
frame	Reference frame of the input image
grid	Grid with cell disabling capabilities
extension	Extension of the grid cells to allow cell overlap. For instance, 0.0f means no extension and 0.1f means a 10% cell size extension.

The grid overload allows you to disable some cells of the grid if those cells are not supposed to contain QR Codes. See the EQRCodeGrid class documentation for more information.

Deprecated

Deprecated, use overloads taking an EGrid argument instead.

Deprecated in version 26.6. Scheduled to be removed in version 27.6.

◆ Read() [8/17]

eVision.EQRCodeGrid eVision.EQRCodeReader.Read	(	eVision.EROIBW8	roi,
		eVision.ERectangleRegion	area,
		eVision.EFrame	frame,
		int	numCellsX,
		int	numCellsY )

Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.

Parameters

roi	The ROI in which the QR codes have to be found.
area	Rectangular Region used as the full grid area
frame	Reference frame of the input image
numCellsX	Number of grid cells in the X direction
numCellsY	Number of grid cells in the Y direction

The grid overload allows you to disable some cells of the grid if those cells are not supposed to contain QR Codes. See the EQRCodeGrid class documentation for more information.

Deprecated

Deprecated, use overloads taking an EGrid argument instead.

Deprecated in version 26.6. Scheduled to be removed in version 27.6.

◆ Read() [9/17]

eVision.EQRCodeGrid eVision.EQRCodeReader.Read	(	eVision.EROIBW8	roi,
		eVision.ERectangleRegion	area,
		eVision.EFrame	frame,
		int	numCellsX,
		int	numCellsY,
		float	extension )

Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.

Parameters

roi	The ROI in which the QR codes have to be found.
area	Rectangular Region used as the full grid area
frame	Reference frame of the input image
numCellsX	Number of grid cells in the X direction
numCellsY	Number of grid cells in the Y direction
extension	Extension of the grid cells to allow cell overlap. For instance, 0.0f means no extension and 0.1f means a 10% cell size extension.

The grid overload allows you to disable some cells of the grid if those cells are not supposed to contain QR Codes. See the EQRCodeGrid class documentation for more information.

Deprecated

Deprecated, use overloads taking an EGrid argument instead.

Deprecated in version 26.6. Scheduled to be removed in version 27.6.

◆ Read() [10/17]

eVision.EQRCodeGrid eVision.EQRCodeReader.Read	(	eVision.EROIBW8	roi,
		eVision.ERectangleRegion	area,
		eVision.EQRCodeGrid	grid )

Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.

Parameters

roi	The ROI in which the QR codes have to be found.
area	Rectangular Region used as the full grid area
grid	Grid with cell disabling capabilities

The grid overload allows you to disable some cells of the grid if those cells are not supposed to contain QR Codes. See the EQRCodeGrid class documentation for more information.

Deprecated

Deprecated, use overloads taking an EGrid argument instead.

Deprecated in version 26.6. Scheduled to be removed in version 27.6.

◆ Read() [11/17]

eVision.EQRCodeGrid eVision.EQRCodeReader.Read	(	eVision.EROIBW8	roi,
		eVision.ERectangleRegion	area,
		eVision.EQRCodeGrid	grid,
		float	extension )

Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.

Parameters

roi	The ROI in which the QR codes have to be found.
area	Rectangular Region used as the full grid area
grid	Grid with cell disabling capabilities
extension	Extension of the grid cells to allow cell overlap. For instance, 0.0f means no extension and 0.1f means a 10% cell size extension.

The grid overload allows you to disable some cells of the grid if those cells are not supposed to contain QR Codes. See the EQRCodeGrid class documentation for more information.

Deprecated

Deprecated, use overloads taking an EGrid argument instead.

Deprecated in version 26.6. Scheduled to be removed in version 27.6.

◆ Read() [12/17]

eVision.EQRCodeGrid eVision.EQRCodeReader.Read	(	eVision.EROIBW8	roi,
		eVision.ERectangleRegion	area,
		int	numCellsX,
		int	numCellsY )

Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.

Parameters

roi	The ROI in which the QR codes have to be found.
area	Rectangular Region used as the full grid area
numCellsX	Number of grid cells in the X direction
numCellsY	Number of grid cells in the Y direction

The grid overload allows you to disable some cells of the grid if those cells are not supposed to contain QR Codes. See the EQRCodeGrid class documentation for more information.

Deprecated

Deprecated, use overloads taking an EGrid argument instead.

Deprecated in version 26.6. Scheduled to be removed in version 27.6.

◆ Read() [13/17]

eVision.EQRCodeGrid eVision.EQRCodeReader.Read	(	eVision.EROIBW8	roi,
		eVision.ERectangleRegion	area,
		int	numCellsX,
		int	numCellsY,
		float	extension )

Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.

Parameters

roi	The ROI in which the QR codes have to be found.
area	Rectangular Region used as the full grid area
numCellsX	Number of grid cells in the X direction
numCellsY	Number of grid cells in the Y direction
extension	Extension of the grid cells to allow cell overlap. For instance, 0.0f means no extension and 0.1f means a 10% cell size extension.

The grid overload allows you to disable some cells of the grid if those cells are not supposed to contain QR Codes. See the EQRCodeGrid class documentation for more information.

Deprecated

Deprecated, use overloads taking an EGrid argument instead.

Deprecated in version 26.6. Scheduled to be removed in version 27.6.

◆ Read() [14/17]

eVision.EQRCode[] eVision.EQRCodeReader.Read	(	eVision.EROIBW8	roi,
		eVision.ERegion	region )

Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.

Parameters

roi	The ROI in which the QR codes have to be found.
region	Region into the ROI where the qr codes have to be found.

The grid overload allows you to disable some cells of the grid if those cells are not supposed to contain QR Codes. See the EQRCodeGrid class documentation for more information.

◆ Read() [15/17]

eVision.EQRCode[] eVision.EQRCodeReader.Read	(	eVision.EROIBW8	roi,
		eVision.ERegion	region,
		eVision.EFrame	frame )

Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.

Parameters

roi	The ROI in which the QR codes have to be found.
region	Region into the ROI where the qr codes have to be found.
frame	Reference frame of the input image

The grid overload allows you to disable some cells of the grid if those cells are not supposed to contain QR Codes. See the EQRCodeGrid class documentation for more information.

◆ Read() [16/17]

eVision.EQRCodeGrid eVision.EQRCodeReader.Read	(	eVision.EROIBW8	roi,
		int	numCellsX,
		int	numCellsY )

Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.

Parameters

roi	The ROI in which the QR codes have to be found.
numCellsX	Number of grid cells in the X direction
numCellsY	Number of grid cells in the Y direction

The grid overload allows you to disable some cells of the grid if those cells are not supposed to contain QR Codes. See the EQRCodeGrid class documentation for more information.

◆ Read() [17/17]

eVision.EQRCodeGrid eVision.EQRCodeReader.Read	(	eVision.EROIBW8	roi,
		int	numCellsX,
		int	numCellsY,
		float	extension )

Detects and decodes all the QR codes in the search field. Returns them as EQRCode objects.

Parameters

roi	The ROI in which the QR codes have to be found.
numCellsX	Number of grid cells in the X direction
numCellsY	Number of grid cells in the Y direction
extension	Extension of the grid cells to allow cell overlap. For instance, 0.0f means no extension and 0.1f means a 10% cell size extension.

The grid overload allows you to disable some cells of the grid if those cells are not supposed to contain QR Codes. See the EQRCodeGrid class documentation for more information.

◆ Save() [1/2]

void eVision.EQRCodeReader.Save ( eVision.ESerializer serializer )

Save the configuration for this EQRCodeReader instance.

Parameters

serializer The given ESerializer, it must have been created for writing.

◆ Save() [2/2]

void eVision.EQRCodeReader.Save ( string path )

Save the configuration for this EQRCodeReader instance.

Parameters

path	The path to which to save the configuration.

Property Documentation

◆ AdaptiveThresholdHalfKernelSize

uint eVision.EQRCodeReader.AdaptiveThresholdHalfKernelSize

getset

Sets the half kernel size used to compute the threshold in EQRDetectionMethod.EQRDetectionMethod_AdaptiveThreshold.

Default: 50.

Prior to eVision 26.10, this setting was computed from the image size, to get previous behavior, set EQRCodeReader.ComputeAdaptiveThresholdHalfKernelSizeFromImage to true.

◆ CellPolarityConfidenceThreshold

float eVision.EQRCodeReader.CellPolarityConfidenceThreshold

getset

Sets the minimum cell polarity confidence threshold.

When the cell confidence is under the threshold, additional processing is attempted to improve its polarity detection. The cell polarity confidence reflects the confidence in the cell digitization result, on a scale from 0 to 1. Increasing the threshold can improve reading of overprinted or underprinted QR codes. Default: 0.2f.

Large values can affect the speed and will increase the probability of false positive changes.

◆ ComputeAdaptiveThresholdHalfKernelSizeFromImage

bool eVision.EQRCodeReader.ComputeAdaptiveThresholdHalfKernelSizeFromImage

getset

Sets whether the half kernel size used to compute the threshold in EQRDetectionMethod.EQRDetectionMethod_AdaptiveThreshold is computed from image size or set by EQRCodeReader.AdaptiveThresholdHalfKernelSize.

Default: false.

Prior to eVision 26.10, EQRCodeReader.AdaptiveThresholdHalfKernelSize was computed from the image size, to get previous behavior, set this to true.

◆ ComputeGrading

bool eVision.EQRCodeReader.ComputeGrading

getset

Allows to choose whether the grading properties of the EQRCode object will be computed by the EQRCodeReader.Read method. The default setting for this property is false.

This setting is not available for Micro QR code symbols.

◆ DetectionMethod

int eVision.EQRCodeReader.DetectionMethod

getset

Sets the detection method for finding QR codes. The method can be any combination of the EQRDetectionMethod enums.

The default value is: 'EQRDetectionMethod.EQRDetectionMethod_Gradient | EQRDetectionMethod.EQRDetectionMethod_AdaptiveThreshold'.

◆ DetectionTradeOff

eVision.EQRDetectionTradeOff eVision.EQRCodeReader.DetectionTradeOff

getset

This setting controls the trade-off between computation speed versus reliability of the algorithm and particularly of the detection methods.

Setting the trade-off will overwrite the current settings for EQRCodeScanPrecision and EQRDetectionMethod.

Available values are defined by EQRDetectionTradeOff. The default value is EQRDetectionTradeOff_Balanced.

◆ FilterOutUnreliablyDecodedQRCodes

bool eVision.EQRCodeReader.FilterOutUnreliablyDecodedQRCodes

getset

Activate or deactivate the filtering of unreliably decoded QR codes.

By default, the QR code reader does not return unreliably decoded QR codes.

◆ ForegroundDetectionThreshold

int eVision.EQRCodeReader.ForegroundDetectionThreshold

getset

Foreground detection threshold. This parameter determines by how many grayscale-values a pixel should deviate from its local background to be considered part of the foreground.

In most cases, changing the value of this parameter is not required. A small threshold value may help to locate codes in low contrast images. If you think you might need to use this parameter, contact technical support for advice. The default value for this parameter is 10.

◆ MaximumVersion

uint eVision.EQRCodeReader.MaximumVersion

getset

Maximum version of QR codes to be searched for.

This parameter value ranges from 1 to 40. Default value: 40.

◆ MaxNumCodes

uint eVision.EQRCodeReader.MaxNumCodes

getset

Maximum number of QR codes to find in a single Image/ROI.

By default, this parameter is set to 1.

◆ MinimumIsotropy

float eVision.EQRCodeReader.MinimumIsotropy

getset

QR code minimum isotropy.

The isotropy of a QR code is defined as its short side divided by its long side.

This parameter value ranges from 0 to 1. Default value: 0.75.

◆ MinimumScore

float eVision.EQRCodeReader.MinimumScore

getset

Minimum pattern finder score that must be reached to consider that a finder pattern has been found.

The pattern finder score is based on a normalized correlation with a perfect finder pattern model.

A perfect match with the model would return a score of 1. This parameter value ranges from 0 to 1. Default value: 0.7.

◆ MinimumVersion

uint eVision.EQRCodeReader.MinimumVersion

getset

Minimum version of QR codes to be searched for.

This parameter value ranges from 1 to 40. Default value: 1.

◆ PerspectiveMode

eVision.EQRCodePerspectiveMode eVision.EQRCodeReader.PerspectiveMode

getset

◆ ScanPrecision

eVision.EQRCodeScanPrecision eVision.EQRCodeReader.ScanPrecision

getset

Precision of the EQRCodeReader.EQRCodeReader when scanning the search field.

Available values are defined by EQRCodeScanPrecision. The default value is EQRCodeScanPrecision_Automatic.

◆ SearchedModels

eVision.EQRCodeModel [] eVision.EQRCodeReader.SearchedModels

getset

QR code models to be searched for.

By default, the QR code reader searches for EQRCodeModel.EQRCodeModel_Model1 and EQRCodeModel.EQRCodeModel_Model2.

◆ SearchField

eVision.EROIBW8 eVision.EQRCodeReader.SearchField

set

Search field for the QR code reader.

Deprecated

Use the EQRCodeReader.Read method taking an EROIBW8 as parameter.

Deprecated in version 24.6. Scheduled to be removed in version 27.6.

◆ TimeOut

ulong eVision.EQRCodeReader.TimeOut

getset

Time-out for the EQRCodeReader.Read method.

If the processing time of one of these functions becomes longer than the set time-out, the processing is stopped and an exception is thrown. In that case, the error code of the exception is EError.EError_TimeoutReached.

The time-out is set in microseconds.

This time-out is not a real time-out. The processing is stopped as soon as possible after the time-out has been reached. This means that the time elapsed effectively in the method can be greater than the time-out itself.

Public Member Functions

Properties

Detailed Description

Constructor & Destructor Documentation

◆ EQRCodeReader() [1/2]

◆ EQRCodeReader() [2/2]

Member Function Documentation

◆ Decode()

◆ Detect()

◆ Load() [1/2]

◆ Load() [2/2]

◆ Read() [1/17]

◆ Read() [2/17]

◆ Read() [3/17]

◆ Read() [4/17]

◆ Read() [5/17]

◆ Read() [6/17]

◆ Read() [7/17]

◆ Read() [8/17]

◆ Read() [9/17]

◆ Read() [10/17]

◆ Read() [11/17]

◆ Read() [12/17]

◆ Read() [13/17]

◆ Read() [14/17]

◆ Read() [15/17]

◆ Read() [16/17]

◆ Read() [17/17]

◆ Save() [1/2]

◆ Save() [2/2]

Property Documentation

◆ AdaptiveThresholdHalfKernelSize

◆ CellPolarityConfidenceThreshold

◆ ComputeAdaptiveThresholdHalfKernelSizeFromImage

◆ ComputeGrading

◆ DetectionMethod

◆ DetectionTradeOff

◆ FilterOutUnreliablyDecodedQRCodes

◆ ForegroundDetectionThreshold

◆ MaximumVersion

◆ MaxNumCodes

◆ MinimumIsotropy

◆ MinimumScore

◆ MinimumVersion

◆ PerspectiveMode

◆ ScanPrecision

◆ SearchedModels

◆ SearchField

◆ TimeOut