Decode Unreadable Barcodes with Dynamsoft Barcode Reader's Custom Scan Parameters
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Binarized image produced by Dynamsoft Barcode Reader:
JSON Template (help):
{
BarcodeReaderTaskSettingOptions
:
[
0
:
{
BarcodeColourModes
:
null
BarcodeComplementModes
:
[
0
:
{
Mode
:
BCM_SKIP
}
]
BarcodeFormatIds
:
[
0
:
BF_QR_CODE
1
:
BF_MICRO_QR
]
BaseBarcodeReaderTaskSettingName
:
DPMCodeReadingModes
:
[
0
:
{
BarcodeFormat
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BF_DATAMATRIX
Mode
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DPMCRM_SKIP
}
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DeblurModes
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null
DeformationResistingModes
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[
0
:
{
BinarizationMode
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{
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BlockSizeX
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BlockSizeY
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EnableFillBinaryVacancy
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Mode
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BM_LOCAL_BLOCK
MorphOperation
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Close
MorphOperationKernelSizeX
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-1
MorphOperationKernelSizeY
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-1
MorphShape
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Rectangle
ThresholdCompensation
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10
}
GrayscaleEnhancementMode
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{
Mode
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GEM_AUTO
Sensitivity
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-1
SharpenBlockSizeX
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SharpenBlockSizeY
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-1
SmoothBlockSizeX
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-1
SmoothBlockSizeY
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-1
}
Level
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5
Mode
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DRM_SKIP
}
]
ExpectedBarcodesCount
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0
LocalizationModes
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[
0
:
{
ConfidenceThreshold
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IsOneDStacked
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0
Mode
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LM_CONNECTED_BLOCKS
ModuleSize
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0
ScanDirection
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0
ScanStride
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0
}
1
:
{
ConfidenceThreshold
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IsOneDStacked
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0
Mode
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LM_SCAN_DIRECTLY
ModuleSize
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ScanDirection
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0
ScanStride
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0
}
2
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{
ConfidenceThreshold
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60
IsOneDStacked
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Mode
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LM_STATISTICS
ModuleSize
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ScanDirection
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ScanStride
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0
}
3
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{
ConfidenceThreshold
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IsOneDStacked
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Mode
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LM_LINES
ModuleSize
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0
ScanDirection
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0
ScanStride
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}
]
MaxThreadsInOneTask
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Name
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BR_1
ReturnBarcodeZoneClarity
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SectionImageParameterArray
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{
ContinueWhenPartialResultsGenerated
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ImageParameterName
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Section
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1
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{
ContinueWhenPartialResultsGenerated
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1
ImageParameterName
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IP_1
Section
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ST_BARCODE_LOCALIZATION
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2
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ImageParameterName
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Section
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ST_BARCODE_DECODING
}
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StartSection
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ST_REGION_PREDETECTION
TerminateSetting
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{
Section
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ST_NULL
Stage
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IRUT_NULL
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TextResultOrderModes
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1
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Mode
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2
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Mode
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TROM_FORMAT
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CaptureVisionTemplates
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{
ImageROIProcessingNameArray
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ImageSource
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MaxParallelTasks
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MinImageCaptureInterval
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Name
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OutputOriginalImage
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SemanticProcessingNameArray
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Timeout
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}
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GlobalParameter
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MaxTotalImageDimension
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}
ImageParameterOptions
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0
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{
BaseImageParameterName
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BinarizationModes
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BinarizationThreshold
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BlockSizeX
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BlockSizeY
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EnableFillBinaryVacancy
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GrayscaleEnhancementModesIndex
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Mode
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MorphOperation
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MorphOperationKernelSizeX
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MorphOperationKernelSizeY
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MorphShape
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ThresholdCompensation
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ColourConversionModes
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[
0
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{
BlueChannelWeight
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GreenChannelWeight
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Mode
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RedChannelWeight
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ReferChannel
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H_CHANNEL
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GrayscaleEnhancementModes
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[
0
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{
Mode
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GEM_GENERAL
Sensitivity
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SharpenBlockSizeY
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SmoothBlockSizeX
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SmoothBlockSizeY
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1
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{
Mode
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SharpenBlockSizeX
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SharpenBlockSizeY
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SmoothBlockSizeX
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SmoothBlockSizeY
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-1
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2
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{
Mode
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Sensitivity
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SharpenBlockSizeX
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-1
SharpenBlockSizeY
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SmoothBlockSizeX
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3
SmoothBlockSizeY
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3
}
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GrayscaleTransformationModes
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[
0
:
{
Mode
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GTM_ORIGINAL
}
]
IfEraseTextZone
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1
Name
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IP_1
RegionPredetectionModes
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[
0
:
{
AspectRatioRange
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[]
FindAccurateBoundary
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0
ForeAndBackgroundColours
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[]
HeightRange
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[]
ImageParameterName
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MinImageDimension
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Mode
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RPM_GENERAL
RelativeRegions
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[]
Sensitivity
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1
SpatialIndexBlockSize
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5
WidthRange
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[]
}
]
ScaleDownThreshold
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ScaleUpModes
:
[
0
:
{
AcuteAngleWithXThreshold
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LetterHeightThreshold
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0
Mode
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ModuleSizeThreshold
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TargetLetterHeight
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TargetModuleSize
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}
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TextDetectionMode
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CharHeightRange
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0
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1
1
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1000
2
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Direction
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MaxSpacingInALine
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Mode
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Sensitivity
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StringLengthRange
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null
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TextureDetectionModes
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{
Mode
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Sensitivity
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1
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BaseImageParameterName
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BinarizationModes
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BlockSizeX
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BlockSizeY
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EnableFillBinaryVacancy
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GrayscaleEnhancementModesIndex
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Mode
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BM_LOCAL_BLOCK
MorphOperation
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MorphOperationKernelSizeY
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MorphShape
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ColourConversionModes
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GreenChannelWeight
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Mode
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CICM_GENERAL
RedChannelWeight
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ReferChannel
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GrayscaleEnhancementModes
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{
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SmoothBlockSizeX
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SmoothBlockSizeY
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}
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GrayscaleTransformationModes
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[
0
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{
Mode
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GTM_ORIGINAL
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]
IfEraseTextZone
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1
Name
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IP_Decode
RegionPredetectionModes
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[
0
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{
AspectRatioRange
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FindAccurateBoundary
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ForeAndBackgroundColours
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HeightRange
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[]
ImageParameterName
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1
MinImageDimension
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262144
Mode
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RPM_GENERAL
RelativeRegions
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[]
Sensitivity
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1
SpatialIndexBlockSize
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5
WidthRange
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[]
}
]
ScaleDownThreshold
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ScaleUpModes
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[
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{
AcuteAngleWithXThreshold
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LetterHeightThreshold
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Mode
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ModuleSizeThreshold
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TargetLetterHeight
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TargetModuleSize
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}
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TextDetectionMode
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MaxSpacingInALine
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Mode
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TTDM_LINE
Sensitivity
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3
StringLengthRange
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null
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TextureDetectionModes
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{
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Sensitivity
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TargetROIDefOptions
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[
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{
BaseTargetROIDefName
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Location
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{
Offset
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1
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2
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1
3
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FourthPoint
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1
3
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MeasuredByPercentage
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ReferenceObjectOriginIndex
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ReferenceObjectType
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ReferenceXAxis
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{
AxisType
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AT_MIDPOINT_EDGE
EdgeIndex
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LengthReference
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LR_X
RotationAngle
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90
}
ReferenceYAxis
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{
AxisType
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AT_MIDPOINT_EDGE
EdgeIndex
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LengthReference
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LR_Y
RotationAngle
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SecondPoint
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[
0
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100
1
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3
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ThirdPoint
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100
1
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100
2
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1
3
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}
}
Name
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PauseFlag
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TaskSettingNameArray
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}
]
}
Issue: Often you might find that a barcode is damaged, for example, scratched, marked up, or incomplete with missing corners, etc.
Solution: We can try different localization methods to identify the location of the barcode that is severely damaged and then use our proprietary algorithm to complete the QR Code to improve the decoding rate.
{
"BarcodeReaderTaskSettingOptions" :
[
{
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"BarcodeComplementModes" :
[
{
"Mode" : "BCM_SKIP"
}
],
"BarcodeFormatIds" :
[
"BF_QR_CODE",
"BF_MICRO_QR"
],
"BaseBarcodeReaderTaskSettingName" : "",
"DPMCodeReadingModes" :
[
{
"BarcodeFormat" : "BF_DATAMATRIX",
"Mode" : "DPMCRM_SKIP"
}
],
"DeblurModes" : null,
"DeformationResistingModes" :
[
{
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"BlockSizeX" : 0,
"BlockSizeY" : 0,
"EnableFillBinaryVacancy" : 1,
"GrayscaleEnhancementModesIndex" : -1,
"Mode" : "BM_LOCAL_BLOCK",
"MorphOperation" : "Close",
"MorphOperationKernelSizeX" : -1,
"MorphOperationKernelSizeY" : -1,
"MorphShape" : "Rectangle",
"ThresholdCompensation" : 10
},
"GrayscaleEnhancementMode" :
{
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"Sensitivity" : -1,
"SharpenBlockSizeX" : -1,
"SharpenBlockSizeY" : -1,
"SmoothBlockSizeX" : -1,
"SmoothBlockSizeY" : -1
},
"Level" : 5,
"Mode" : "DRM_SKIP"
}
],
"ExpectedBarcodesCount" : 0,
"LocalizationModes" :
[
{
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"IsOneDStacked" : 0,
"Mode" : "LM_CONNECTED_BLOCKS",
"ModuleSize" : 0,
"ScanDirection" : 0,
"ScanStride" : 0
},
{
"ConfidenceThreshold" : 60,
"IsOneDStacked" : 0,
"Mode" : "LM_SCAN_DIRECTLY",
"ModuleSize" : 0,
"ScanDirection" : 0,
"ScanStride" : 0
},
{
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"IsOneDStacked" : 0,
"Mode" : "LM_STATISTICS",
"ModuleSize" : 0,
"ScanDirection" : 0,
"ScanStride" : 0
},
{
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"IsOneDStacked" : 0,
"Mode" : "LM_LINES",
"ModuleSize" : 0,
"ScanDirection" : 0,
"ScanStride" : 0
}
],
"MaxThreadsInOneTask" : 4,
"Name" : "BR_1",
"ReturnBarcodeZoneClarity" : 0,
"SectionImageParameterArray" :
[
{
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"ImageParameterName" : "IP_1",
"Section" : "ST_REGION_PREDETECTION"
},
{
"ContinueWhenPartialResultsGenerated" : 1,
"ImageParameterName" : "IP_1",
"Section" : "ST_BARCODE_LOCALIZATION"
},
{
"ContinueWhenPartialResultsGenerated" : 1,
"ImageParameterName" : "IP_Decode",
"Section" : "ST_BARCODE_DECODING"
}
],
"StartSection" : "ST_REGION_PREDETECTION",
"TerminateSetting" :
{
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"Stage" : "IRUT_NULL"
},
"TextResultOrderModes" :
[
{
"Mode" : "TROM_CONFIDENCE"
},
{
"Mode" : "TROM_POSITION"
},
{
"Mode" : "TROM_FORMAT"
}
]
}
],
"CaptureVisionTemplates" :
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"ImageSource" : "",
"MaxParallelTasks" : 4,
"MinImageCaptureInterval" : 0,
"Name" : "Default_1",
"OutputOriginalImage" : 0,
"SemanticProcessingNameArray" : null,
"Timeout" : 100000
}
],
"GlobalParameter" :
{
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},
"ImageParameterOptions" :
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"BinarizationModes" :
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"BlockSizeX" : 0,
"BlockSizeY" : 0,
"EnableFillBinaryVacancy" : 1,
"GrayscaleEnhancementModesIndex" : -1,
"Mode" : "BM_LOCAL_BLOCK",
"MorphOperation" : "Close",
"MorphOperationKernelSizeX" : -1,
"MorphOperationKernelSizeY" : -1,
"MorphShape" : "Rectangle",
"ThresholdCompensation" : 10
}
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"ColourConversionModes" :
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"GreenChannelWeight" : -1,
"Mode" : "CICM_GENERAL",
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"ReferChannel" : "H_CHANNEL"
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],
"GrayscaleEnhancementModes" :
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"SharpenBlockSizeY" : -1,
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"SharpenBlockSizeX" : -1,
"SharpenBlockSizeY" : -1,
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"SmoothBlockSizeX" : 3,
"SmoothBlockSizeY" : 3
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"Name" : "IP_1",
"RegionPredetectionModes" :
[
{
"AspectRatioRange" : "[]",
"FindAccurateBoundary" : 0,
"ForeAndBackgroundColours" : "[]",
"HeightRange" : "[]",
"ImageParameterName" : "",
"MeasuredByPercentage" : 1,
"MinImageDimension" : 262144,
"Mode" : "RPM_GENERAL",
"RelativeRegions" : "[]",
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"WidthRange" : "[]"
}
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"ScaleUpModes" :
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"Mode" : "SUM_AUTO",
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"TargetLetterHeight" : 0,
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}
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{
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"Direction" : "UNKNOWN",
"MaxSpacingInALine" : -1,
"Mode" : "TTDM_LINE",
"Sensitivity" : 3,
"StringLengthRange" : null
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"Mode" : "BM_LOCAL_BLOCK",
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"MorphOperationKernelSizeX" : -1,
"MorphOperationKernelSizeY" : -1,
"MorphShape" : "Rectangle",
"ThresholdCompensation" : 10
}
],
"ColourConversionModes" :
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"GreenChannelWeight" : -1,
"Mode" : "CICM_GENERAL",
"RedChannelWeight" : -1,
"ReferChannel" : "H_CHANNEL"
}
],
"GrayscaleEnhancementModes" :
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"SharpenBlockSizeY" : -1,
"SmoothBlockSizeX" : -1,
"SmoothBlockSizeY" : -1
}
],
"GrayscaleTransformationModes" :
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],
"IfEraseTextZone" : 1,
"Name" : "IP_Decode",
"RegionPredetectionModes" :
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{
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"ForeAndBackgroundColours" : "[]",
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"MinImageDimension" : 262144,
"Mode" : "RPM_GENERAL",
"RelativeRegions" : "[]",
"Sensitivity" : 1,
"SpatialIndexBlockSize" : 5,
"WidthRange" : "[]"
}
],
"ScaleDownThreshold" : 99999,
"ScaleUpModes" :
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{
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"LetterHeightThreshold" : 0,
"Mode" : "SUM_AUTO",
"ModuleSizeThreshold" : 0,
"TargetLetterHeight" : 0,
"TargetModuleSize" : 0
}
],
"TextDetectionMode" :
{
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1
],
"Direction" : "UNKNOWN",
"MaxSpacingInALine" : -1,
"Mode" : "TTDM_LINE",
"Sensitivity" : 3,
"StringLengthRange" : null
},
"TextureDetectionModes" :
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"TargetROIDefOptions" :
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"Location" :
{
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"TaskSettingNameArray" :
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]
}
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