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Introduction
DEVELOPMENT
User Guide
Start with RTU-BarcodeScanner
Customize your BarcodeScanner
Develop with Foundational APIs
Get Started
Use in Framework
Explore Features
Basic Features
Specify barcode formats and count
Read a specific area/region
Customize the UI
Handle Different Cases
Read inverted barcodes
Read deformed barcodes
Read incomplete barcodes
Read dense barcodes
Read barcodes from a large image
Read barcodes with small module size
Read images with imbalanced colors
Read images with uneven lighting
Read images with texture
Read images with lots of text
Preprocess images to read difficult barcodes
Barcode Results
Get barcode confidence and rotation
Get barcode location
Get detailed barcode information
Filter and sort decoding results
Advanced Features
Use SimplifiedCaptureVisionSettings or Templates
Use format specific configurations
Samples and Demos
API Reference
BarcodeScanner APIs
Foundational APIs
DynamsoftCaptureVisionRouter
CaptureVisionRouter
Create and Destroy Instances
Single-Image Processing
Multiple-Image Processing
Settings
Preset Templates
Intermediate Result
Classes
CaptureVisionRouterModule
CapturedResultReceiver
IntermediateResultManager
IntermediateResultReceiver
Interfaces
CapturedResult
SimplifiedCaptureVisionSettings
Enums
EnumCaptureState
EnumImageSourceState
EnumPresetTemplate
DynamsoftBarcodeReader
BarcodeReaderModule
Interfaces
AztecDetails
BarcodeDetails
BarcodeResultItem
CandidateBarcodeZone
CandidateBarcodeZonesUnit
ComplementedBarcodeImageUnit
DataMatrixDetails
DecodedBarcodeElement
DecodedBarcodesResult
DecodedBarcodesUnit
DeformationResistedBarcode
DeformationResistedBarcodeImageUnit
ExtendedBarcodeResult
LocalizedBarcodeElement
LocalizedBarcodesUnit
OneDCodeDetails
PDF417Details
QRCodeDetails
ScaledUpBarcodeImageUnit
SimplifiedBarcodeReaderSettings
Enums
EnumBarcodeFormat
EnumDeblurMode
EnumExtendedBarcodeResultType
EnumLocalizationMode
EnumQRCodeErrorCorrectionLevel
DynamsoftCameraEnhancer
CameraEnhancer
Instantiate
Camera Control
Frame Acquisition
UI
Auxiliary
View Classes
CameraView
ImageEditorView
Auxiliary Classes
CameraEnhancerModule
DrawingItem
ImageDrawingItem
LineDrawingItem
QuadDrawingItem
RectDrawingItem
TextDrawingItem
DrawingLayer
DrawingStyleManager
Feedback
Interfaces
DCEFrame
DrawingItemEvent
DrawingStyle
Note
PlayCallbackInfo
Resolution
TipConfig
VideoDeviceInfo
VideoFrameTag
Enumerations
EnumDrawingItemMediaType
EnumDrawingItemState
EnumEnhancedFeatures
DynamsoftCodeParser
Supported Code Types
Machine Readable Travel Documents
North America DL/ID
South Africa Driver License
Aadhaar
Vehicle Identification Number
GS1 Application Identifiers (AI)
CodeParserModule
CodeParser
Interfaces
Parsedresult
ParsedresultItem
Enumerations
EnumMappingStatus
EnumValidationStatus
DynamsoftLicense
LicenseManager
LicenseModule
DynamsoftUtility
MultiFrameResultCrossFilter
UtilityModule
DynamsoftCore
Classes
CoreModule
ImageSourceAdapter
Interfaces
Arc
BinaryImageUnit
ColourImageUnit
CapturedResultBase
CapturedResultItem
Contour
ContoursUnit
Corner
DSImageData
DSRect
Edge
ErrorInfo
EnhancedGrayscaleImageUnit
FileImageTag
GrayscaleImageUnit
ImageSourceErrorListener
ImageTag
IntermediateResult
IntermediateResultExtraInfo
IntermediateResultUnit
LineSegmentsUnit
LineSegment
ObservationParameters
OriginalImageResultItem
Point
PredetectedRegionElement
PredetectedRegionsUnit
Polygon
Quadrilateral
Rect
RegionObjectElement
ScaledColourImageUnit
TextRemovedBinaryImageUnit
TextureDetectionResultUnit
TextureRemovedBinaryImageUnit
TextureRemovedGrayscaleImageUnit
TextZone
TextZonesUnit
TransformedGrayscaleImageUnit
Enumerations
BufferOverflowProtectionMode
CapturedResultItemType
ColourChannelUsageType
CornerType
CrossVerificationStatus
ErrorCode
GrayscaleEnhancementMode
GrayscaleTransformationMode
ImageFileFormat
ImagePixelFormat
ImageTagType
IntermediateResultUnitType
ModuleName
RegionObjectElementType
SectionType
UNDERSTANDING DBR
Overview of DCV
Architecture
Input
Image Processing
Semantic Processing
Output
Performance
Speed
Accuracy
Read Rate
Parameters
CaptureVisionTemplate Object
ImageROIProcessingNameArray
ImageSourceName
MaxParallelTasks
MinImageCaptureInterval
Name
OutputOriginalImage
SemanticProcessingNameArray
Timeout
TargetROIDef Object
BaseTargetROIDefName
EnableResultsDeduplication
Location
ReferenceObjectFilter
AtomicResultTypeArray
ReferenceTargetROIDefNameArray
ReferenceTaskNameArray
BarcodeFilteringCondition
FrameFilteringCondition
TextLineFilteringCondition
RegionFilteringCondition
Offset
ReferenceObjectOriginIndex
ReferenceObjectType
MeasureByPercentage
FirstPoint
SecondPoint
ThirdPoint
FourthPoint
ReferenceXAxis
ReferenceYAxis
Name
PauseFlag
TaskSettingNameArray
BarcodeReaderTaskSetting Object
BarcodeFormatIds
BarcodeFormatSpecificationNameArray
BaseBarcodeReaderTaskSettingName
DPMCodeReadingModes
ExpectedBarcodesCount
MaxThreadsInOneTask
Name
ReturnBarcodeZoneClarity
TextResultOrderModes
SectionArray
RegionPredetectionSection Object
Section
ImageParameterName
StageArray
PredetectRegionsStage Object
Stage
RegionPredetectionModes
BarcodeLocalizationSection Object
Section
ImageParameterName
StageArray
LocalizeCandidateBarcodesStage Object
Stage
LocalizationModes
LocalizeBarcodesStage Object
Stage
BarcodeDecodingSection Object
Section
ImageParameterName
StageArray
ResistDeformationStage Object
Stage
DeformationResistingModes
ComplementBarcodeStage Object
Stage
BarcodeComplementModes
ScaleBarcodeImageStage Object
Stage
BarcodeScaleModes
DecodeBarcodesStage Object
Stage
DeblurModes
CodeParserTaskSetting Object
CodeSpecifications
Name
ResourcesPath
OutputTaskSetting Object
Name
OutputCondition
ImageParameter Object
BaseImageParameterName
Name
ApplicableStages
Assemble Lines Stage
Stage
LineAssemblyMode
Binarize Image Stage
Stage
BinarizationModes
Binarize Texture Removed Grayscale Stage
Stage
BinarizationModes
Convert to Grayscale Stage
Stage
ColourConversionModes
Detect Shortlines Stage
Stage
ShortlinesDetectionMode
Detect Text Zones Stage
Stage
TextDetectionMode
Detect Texture Stage
Stage
TextureDetectionModes
Enhance Grayscale Stage
Stage
GrayscaleEnhancementModes
Find Contours Stage
Stage
Remove Text Zones from Binary Stage
Stage
IfEraseTextZone
Remove Texture from Grayscale Stage
Stage
Stage
Scale Image Stage
Stage
ImageScaleSettings
Transform Grayscale Stage
Stage
GrayscaleTransformationModes
BarcodeFormatSpecification Object
AllModuleDeviation
AustralianPostEncodingTable
BarcodeAngleRangeArray
BarcodeBytesLengthRangeArray
BarcodeHeightRangeArray
BarcodeTextLengthRangeArray
BarcodeTextRegExPattern
BarcodeWidthRangeArray
BarcodeZoneBarCountRangeArray
BarcodeZoneMinDistanceToImageBorders
Code128Subset
DataMatrixModuleIsotropic
DataMatrixSizeOptions
EnableAddOnCode
EnableDataMatrixECC000-140
EnableQRCodeModel1
ExpectedBarcodesCount
FindUnevenModuleBarcode
HasVerticalQuietZone
HeadModuleRatio
IncludeImpliedAI01
IncludeTrailingCheckDigit
MinQuietZoneWidth
MinRatioOfBarcodeZoneWidthToHeight
MinResultConfidence
MirrorMode
ModuleSizeRangeArray
MSICodeCheckDigitCalculation
Name
PartitionModes
PatchCodeSearchingMargins
RequireStartStopChars
ReturnPartialBarcodeValue
StandardFormat
TailModuleRatio
VerifyCheckDigit
CaptureVisionModel Object
DirectoryPath
MaxModelInstances
ModelArgs
CharSet Object
Name
Global Parameter
MaxTotalImageDimension
IntraOpNumThreads
SemanticProcessing Object
Name
ReferenceObjectFilter
TaskSettingNameArray
USEFUL RESOURCES
Release Notes
Version 11.x
Version 10.x
Version 9.x
Version 8.x
Version 7.6.0 and below
Upgrade Instructions
FAQ
How to get a copy of Dbr JS deployable files ?
How to use the JavaScript SDK in offline mode?
What are the pros and cons of using the CDN?
What are the differences between the compact edition and the full edition?
Is HTTPS absolutely required?
Do we have to call loadWasm proactively?
What are the differences between updateScanSettings/updateVideoSettings/updateRuntimeSettings ?
What are the different ways to customize the UI?
How to get the logs for the JavaScript SDK?
How do you upgrade to a newer version of the SDK?
How to Secure Your License Key by Managing Domain Binding?
When is singleFrameMode enabled?
How to get intermediate result images?
How to read an inverted image?
How to read barcodes from existing files?
Formats supported when reading barcodes from files in local memory?
How to scan the barcode on a US Driver"s License and get the first name, last name, DOB, etc.?
How to add/remove a "beep" sound once a barcode is found?
How do I create a NodeJS application using the SDK?
How to check the version of the JavaScript SDK I am currently using?
Why am I unable to scan an Aztec code in the helloworld sample?
Enable the camera on the click of a button?
What is the difference between the BarcodeReader class and the BarcodeScanner class?
Why are newline characters not being rendered when displaying the barcode results in a textbox?
How to resolve the expected magic word error that occurs when using the JavaScript SDK?
What are the general troubleshooting steps if an image fails to decode with the JavaScript SDK?
What are the differences between the "speed", "coverage", "balance, and "single" runtime templates?
How to avoid incorrect barcode results?
How does the license work - Per Scan, Per Device, Per Concurrent Device?
When is a new license spot taken when using a per-device licensing model?
How to get rid of the delay when opening the camera?
How can I hide the laser bar and Dynamsoft message in the default UI of the BarcodeScanner?
Why is the Javascript SDK not recognizing any barcodes on iOS 16.4?
How to check the camera permissions programmatically in Dynamsoft Barcode Reader JavaScript SDK?
How do I resolve the issue of the Barcode Reader not recognizing any barcodes via video in iOS 16.7 or 17?
How to Reduce Duplicate Scans and Optimize Scan Usage?
Why isn't my webcam reading the barcode on my driver's license or ID card?
What are the system requirements for running the latest version of Dynamsoft Barcode Reader?
How to Enable Specific Barcode Formats with Your License?
How to Resolve Camera Cannot Open in PWA Using Dynamsoft Barcode Reader on iOS?
What Is Adaptive WebAssembly (Wasm) Loading and How Does It Work?
License Initialization
Latest version
Version 10.x
Version 9.x or older
Documentation Homepage
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