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DeblurLevel

DeblurLevel is a parameter to control the efforts used to process the blurriness of the barcode. It is defined as below:

Value Type	Value Range	Default Value
int	[0, 9]	9

Remarks
If you have a blurry image, you can set this property to a larger value. The higher value set, the more effort the library will spend to decode images, but it may also slow down the recognition process.
DeblurLevel is now deprecated. It still works in this version but could be removed in the near future. We recommend using DeblurModes instead. Migrating mapping:

For Barcode Format PDF417

DeblurLevel	DeblurModes
0	[DM_BASED_ON_LOC_BIN,DM_THRESHOLD_BINARIZATION]
1-3	[DM_BASED_ON_LOC_BIN,DM_THRESHOLD_BINARIZATION,DM_DIRECT_BINARIZATION]
4-6	[DM_BASED_ON_LOC_BIN,DM_THRESHOLD_BINARIZATION,DM_DIRECT_BINARIZATION,DM_SMOOTHING]
7-8	[DM_BASED_ON_LOC_BIN,DM_THRESHOLD_BINARIZATION,DM_DIRECT_BINARIZATION,DM_SMOOTHING，DM_GRAY_EQUALIZATION]
9	[DM_BASED_ON_LOC_BIN,DM_THRESHOLD_BINARIZATION,DM_DIRECT_BINARIZATION,DM_SMOOTHING，DM_GRAY_EQUALIZATION,DM_MORPHING,DM_DEEP_ANALYSIS]

For Barcode Format OneD

DeblurLevel	DeblurModes
0	[DM_BASED_ON_LOC_BIN,DM_THRESHOLD_BINARIZATION,DM_THRESHOLD_BINARIZATION]
1-3	[DM_BASED_ON_LOC_BIN,DM_THRESHOLD_BINARIZATION,DM_THRESHOLD_BINARIZATION,DM_DIRECT_BINARIZATION]
4-6	[DM_BASED_ON_LOC_BIN,DM_THRESHOLD_BINARIZATION,DM_THRESHOLD_BINARIZATION,DM_DIRECT_BINARIZATION,DM_SMOOTHING]
7-8	[DM_BASED_ON_LOC_BIN,DM_THRESHOLD_BINARIZATION,DM_THRESHOLD_BINARIZATION,DM_DIRECT_BINARIZATION,DM_SMOOTHING，DM_GRAY_EQUALIZATION]
9	[DM_BASED_ON_LOC_BIN,DM_THRESHOLD_BINARIZATION,DM_THRESHOLD_BINARIZATION,DM_DIRECT_BINARIZATION,DM_DEEP_ANALYSIS,DM_SMOOTHING，DM_GRAY_EQUALIZATION,DM_MORPHING]

For other formats

DeblurLevel	DeblurModes
0	[DM_BASED_ON_LOC_BIN,DM_THRESHOLD_BINARIZATION]
1-3	[DM_BASED_ON_LOC_BIN,DM_THRESHOLD_BINARIZATION,DM_DIRECT_BINARIZATION]
4-6	[DM_BASED_ON_LOC_BIN,DM_THRESHOLD_BINARIZATION,DM_DIRECT_BINARIZATION,DM_SMOOTHING]
7-8	[DM_BASED_ON_LOC_BIN,DM_THRESHOLD_BINARIZATION,DM_DIRECT_BINARIZATION,DM_SMOOTHING，DM_GRAY_EQUALIZATION]
9	[DM_BASED_ON_LOC_BIN,DM_THRESHOLD_BINARIZATION,DM_DIRECT_BINARIZATION,DM_DEEP_ANALYSIS,DM_SMOOTHING，DM_GRAY_EQUALIZATION,DM_MORPHING]

Setting Methods

DeblurLevel is supported to be set through RuntimeSetting or JSON template.

As `PublicRuntimeSettings` Member

DeblurLevel can be set dynamically during runtime as a member of PublicRuntimeSettings struct.

Code Snippet in C++

//...other codes
PublicRuntimeSettings* pSettings = new PublicRuntimeSettings;
int errorCode = reader->GetRuntimeSettings(pSettings);
pSettings->deblurLevel = 1;
reader->UpdateRuntimeSettings(pSettings);
delete pSettings;
//...other codes

See Also

PublicRuntimeSettings: JavaScript | C | C++ | .NET | Python | Java | Java-Android | Objective-C & Swift

As JSON Parameter

DeblurLevel as a JSON parameter is a number value defined as below.

Key Name	Key Value
DeblurLevel	A number from [0, 9]

JSON Example

{
    "DeblurLevel": 0
}

Impacts on Performance

Speed

Setting DeblurLevel to a smaller number when the image is clear may speed up the process.

Read Rate

Setting DeblurLevel to a larger number when the image is blurry may improve the Read Rate.

Accuracy

Setting DeblurLevel to a larger number when the image is blurry may improve the Accuracy.

How to set DBR parameters