Datacodes

Classes
class	oevislib_net.ComputerVision.Datacodes.Barcode
	Holds information about barcode: its position, format and text which is encoded. More...
class	oevislib_net.ComputerVision.Datacodes.DataCode
	Holds information about a data code: its position and decoded text. More...
class	oevislib_net.ComputerVision.Datacodes.QRCode
	Holds information about QR code: its position, version and text which is encoded. More...

Functions
static Conditional< Barcode >	oevislib_net.ComputerVision.Datacodes.Datacodes.ReadBarcode (Image inImage, Optional< Rectangle2D > inRoi=null, Optional< UCS2D > inRoiAlignment=null, Optional< BarcodeFormat > inBarcodeFormat=null, int inMinScanLines=-1, Optional< Rectangle2D > outAlignedRoi=null)
	Detects and recognizes a single barcode on the input image.
static Array< Barcode >	oevislib_net.ComputerVision.Datacodes.Datacodes.ReadBarcodes (Image inImage, int inMaxBarcodeCount=-1, Optional< Rectangle2D > inRoi=null, Optional< UCS2D > inRoiAlignment=null, Optional< BarcodeFormat > inBarcodeFormat=null, int inMinScanLines=-1, Optional< Rectangle2D > outAlignedRoi=null)
	Detects and recognizes multiple barcodes on the input image.
static Conditional< QRCode >	oevislib_net.ComputerVision.Datacodes.Datacodes.ReadQRCode (Image inImage, Optional< Rectangle2D > inRoi=null, Optional< UCS2D > inRoiAlignment=null, bool inAllowRotation=true, Optional< Rectangle2D > outAlignedRoi=null)
	Detects and recognizes a single QR code on the input image.
static Array< QRCode >	oevislib_net.ComputerVision.Datacodes.Datacodes.ReadQRCodes (Image inImage, int inMaxCodeCount=-1, Optional< Rectangle2D > inRoi=null, Optional< UCS2D > inRoiAlignment=null, bool inAllowRotation=true, Optional< Rectangle2D > outAlignedRoi=null)
	Detects and recognizes all QR codes on the input image.
static Conditional< DataCode >	oevislib_net.ComputerVision.Datacodes.Datacodes.ReadDataCode (Image inImage, Optional< Rectangle2D > inRoi=null, Optional< UCS2D > inRoiAlignment=null, bool inAllowRotation=true, Optional< Rectangle2D > outAlignedRoi=null)
	Detects and recognizes a single data code on the input image.
static Array< DataCode >	oevislib_net.ComputerVision.Datacodes.Datacodes.ReadDataCodes (Image inImage, int inMaxCodeCount=-1, Optional< Rectangle2D > inRoi=null, Optional< UCS2D > inRoiAlignment=null, bool inAllowRotation=true, Optional< Rectangle2D > outAlignedRoi=null)
	Detects and recognizes all data codes in the input image.

Detailed Description

Function Documentation

ReadBarcode()

Conditional< Barcode > oevislib_net.ComputerVision.Datacodes.Datacodes.ReadBarcode ( Image inImage, Optional< Rectangle2D > inRoi = null, Optional< UCS2D > inRoiAlignment = null, Optional< BarcodeFormat > inBarcodeFormat = null, int inMinScanLines = -1, Optional< Rectangle2D > outAlignedRoi = null )

inlinestatic

Detects and recognizes a single barcode on the input image.

When inMinScanLines is set to a negative value (-1 by default), the algorithm scans every line of the barcode to return the correct barcode's bounding box. Otherwise, the algorithm stops scanning when inMinScanLines have been recognized, leaving in output a rectangle containing only those lines (the width will correspond to barcode's width, the height probably not). It's recommended to set a positive value for inMinScanLines to speed up computations.

Parameters

inImage	Input image.
inRoi	Region of interest.
inRoiAlignment	Adjusts the region of interest to the correct position.
inBarcodeFormat	Barcode's format (EAN13, EAN8, UPCA, UPCE, CODE128, CODE39, CODE93, Interleaved2of5 and more).
inMinScanLines	Minimum number of scan lines to be found. The more the value is precise, the more accurate will be the output rectangle. Range: [-1, +inf).
outAlignedRoi	Aligned ROI (in the image coordinates).

Returns

Barcode if found, Null otherwise.

ReadBarcodes()

Array< Barcode > oevislib_net.ComputerVision.Datacodes.Datacodes.ReadBarcodes ( Image inImage, int inMaxBarcodeCount = -1, Optional< Rectangle2D > inRoi = null, Optional< UCS2D > inRoiAlignment = null, Optional< BarcodeFormat > inBarcodeFormat = null, int inMinScanLines = -1, Optional< Rectangle2D > outAlignedRoi = null )

inlinestatic

Detects and recognizes multiple barcodes on the input image.

When inMinScanLines is set to a negative value (-1 by default), the algorithm scans every line of the barcode to return the correct barcode's bounding box. Otherwise, the algorithm stops scanning when inMinScanLines have been recognized, leaving in output a rectangle containing only those lines (the width will correspond to barcode's width, the height probably not). It's recommended to set a positive value for inMinScanLines to speed up computations.

Parameters

inImage	Input image.
inMaxBarcodeCount	Maximum number of barcodes to find (if set to -1 all possible barcodes are found). Range: [-1, +inf).
inRoi	Region of interest.
inRoiAlignment	Adjusts the region of interest to the correct position.
inBarcodeFormat	Barcode's format (EAN13, EAN8, UPCA, UPCE, CODE128, CODE39, CODE93, Interleaved2of5 and more).
inMinScanLines	Minimum number of scan lines to be found. The more the value is precise, the more accurate will be the output rectangle. Range: [-1, +inf).
outAlignedRoi	Aligned ROI (in the image coordinates).

Returns

Barcodes identified, or an empty array if nothing is found.

ReadDataCode()

Conditional< DataCode > oevislib_net.ComputerVision.Datacodes.Datacodes.ReadDataCode ( Image inImage, Optional< Rectangle2D > inRoi = null, Optional< UCS2D > inRoiAlignment = null, bool inAllowRotation = true, Optional< Rectangle2D > outAlignedRoi = null )

inlinestatic

Detects and recognizes a single data code on the input image.

Parameters

inImage	Input image.
inRoi	Region of interest.
inRoiAlignment	Adjusts the region of interest to the correct position.
inAllowRotation	Search also for rotated QR codes.
outAlignedRoi	Aligned ROI (in the image coordinates).

Returns

Data code if found, Null otherwise.

ReadDataCodes()

Array< DataCode > oevislib_net.ComputerVision.Datacodes.Datacodes.ReadDataCodes ( Image inImage, int inMaxCodeCount = -1, Optional< Rectangle2D > inRoi = null, Optional< UCS2D > inRoiAlignment = null, bool inAllowRotation = true, Optional< Rectangle2D > outAlignedRoi = null )

inlinestatic

Detects and recognizes all data codes in the input image.

Parameters

inImage	Input image.
inMaxCodeCount	Maximum number of data codes to find (if set to -1 all possible data codes are found). Range: [-1, +inf).
inRoi	Region of interest.
inRoiAlignment	Adjusts the region of interest to the correct position.
inAllowRotation	Search also for rotated QR codes.
outAlignedRoi	Aligned ROI (in the image coordinates).

Returns

Data codes identified, or an empty array if nothing is found.

ReadQRCode()

Conditional< QRCode > oevislib_net.ComputerVision.Datacodes.Datacodes.ReadQRCode ( Image inImage, Optional< Rectangle2D > inRoi = null, Optional< UCS2D > inRoiAlignment = null, bool inAllowRotation = true, Optional< Rectangle2D > outAlignedRoi = null )

inlinestatic

Detects and recognizes a single QR code on the input image.

Parameters

inImage	Input image.
inRoi	Region of interest.
inRoiAlignment	Adjusts the region of interest to the correct position.
inAllowRotation	Search also for rotated QR codes.
outAlignedRoi	Aligned ROI (in the image coordinates).

Returns

QR code if found, Null otherwise.

ReadQRCodes()

Array< QRCode > oevislib_net.ComputerVision.Datacodes.Datacodes.ReadQRCodes ( Image inImage, int inMaxCodeCount = -1, Optional< Rectangle2D > inRoi = null, Optional< UCS2D > inRoiAlignment = null, bool inAllowRotation = true, Optional< Rectangle2D > outAlignedRoi = null )

inlinestatic

Detects and recognizes all QR codes on the input image.

Parameters

inImage	Input image.
inMaxCodeCount	Maximum number of QR codes to find (if set to -1 all possible QR codes are found). Range: [-1, +inf).
inRoi	Region of interest.
inRoiAlignment	Adjusts the region of interest to the correct position.
inAllowRotation	Search also for rotated QR codes.
outAlignedRoi	Aligned ROI (in the image coordinates).

Returns

QR codes identified, or an empty array if nothing is found.