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Release Notes for C Edition - 9.x

9.6.10 (01/10/2023)

New

Added a new method DBR_SetLicenseCachePath to support customizing the license cache saving path.
Add a new method DBR_GetDeviceUUID to support getting device UUID for license activating.
Added error code DMERR_LICENSE_BUFFER_FAILED to the potential error list of the license activation methods and decode methods. The error code is returned when the directory of the license cache is inaccessible.

Improved

Improved the performance of Direct Part Marking (DPM) barcode decoding.
Improved the performance of GS1 Databar barcode decoding.

Fixed

Fixed a crash bug when using a online license key on ARM64 environment.
Fixed a crash bug when using a online license key on the AWS lambda environment.
Fixed a bug that some OneD barcodes without start & stop characters are not decoded when parameter RequireStartStopChars is set to 0.
Other small fixes and tweaks.

9.6.0 (11/29/2022)

Version Highlights

Image orientation handling is supported by a new feature. With the new feature, you can:
- Get a TranformationMatrix along with the barcode location result.
- Implement coordinates transformation on the barcode location result with the TransformationMatrix.
DotCode decoding is improved by optimizing the localization of DotCodes that are close to one another.
EAN8 barcode decoding is improved by honing the accuracy of localization algorithms.
QR code localizing is improved by reducing the mis-assemble rate of the finder patterns when using the localization mode LM_CONNECTED_BLOCK or LM_SCAN_DIRECTLY, which are designed for speed. The mis-assembling only occurs when there exist dense QR codes on the same image.
Mirrored rectangular DataMatrix barcode is supported by implementing MirrorMode when localizing the barcodes.
Deformed barcode decoding is improved by extending the supported modes and mode arguments of DeformationResistingModes.

Edition Highlights

Added duplicate barcode filter feature in video mode. You can implement duplicate filter to ignore duplicate barcodes for a period.

Changelog

New

Added a property orientation to struct FrameDecodingParameters to set the orientation information of the video frame.
Added orientation to struct ImageData to set the orientation information.
Enabled decoding methods DBR_DecodeFile(), DBR_DecodeFileinMemory() and DBR_DecodeBase64String() to read EXIF data of the given image so that the library can obtain the orientation information of the image file.
Added a property transformationMatrix to struct LocalizationResult so that the library can output a transformation matrix for transforming the localization coordinates to image’s natural orientation.
Added a method DBR_TransformCoordinates() to support transforming the coordinates of a point based on a given transformation matrix.
Added a method DBR_DecodeImageData() to enable decoding barcodes from source image defined as ImageData.
Added a property duplicateForgetTime to struct FrameDecodingParameters to set the time period used to filter out duplicate results found in frames.
Added a method DBR_SetUniqueBarcodeCallback() to set callback function to obtain unique barcode result.
Added properties hasLeftRowIndicator and hasRightRowIndicator to struct PDF417Details to return whether the left and right row indicator of the PDF417 barcode is detected.
Added a member BF2_ALL to enumeration BarcodeFormatIds_2 to support setting all barcode formats in BarcodeFormat group 2 with one enumeration.
Extended the features of parameter DeformationResistingModes:
- Extended the valid mode arguments of DRM_BROAD_WARP, DRM_LOCAL_REFERENCE and DRM_DEWRINKLE with two new arguments: GrayscaleEnhancementMode and BinarizationMode.
- Supported mode DRM_AUTO.

Improved

Improved the accuracy when processing multiple QR codes.
Improved the processing speed by excluding incorrectly located barcode zones before decoding.
Improved the creation, destruction and acquisition logic of concurrent instances.
Improved the accuracy of EAN8 localization result(s).
Improved the localization of mirrored DataMatrix barcode by implementing MirrorMode.

Fixed

Fixed a bug that DotCodes might not be decoded when they are densely arranged.
Fixed a crash bug when trying to output a template which included BarcodeTextRegExPattern.
Other small fixes and tweaks.

9.4.0 (08/30/2022)

Highlights

DotCode decoding has been improved by optimizing the localization and decoding algorithm.
Stacked, skewed or perspective distorted OneD barcode decoding has been improved.

Changelog

New

Added an argument IsOneDStacked to LM_SCAN_DIRECTLY to process stacked OneD barcodes.
Added a parameter PatchCodeSearchingMargins to specify the searching area of PatchCode.
Added the supported data format of FormatSpecification.PartitionModes to enhance the readability of the parameters. Users can use a list of enumeration names to specify the PartitionModes.

Improved

Improved the localization mode LM_LINES to better support skewed and perspective OneD barcodes.
Enhanced tamper resistance of the license keys so that any change to the license string makes it invalid.

Deprecated

Deprecated the attribute barcodeFormatString_2 of TextResult, ExtendedResult and LocalizationResult. All the barcode format strings will be returned by the attribute barcodeFormatString.

9.2.0 (06/07/2022)

Highlights

Barcode boundary-seeking algorithm is refactored to improve stability.
Pharmacode decoding is optimized to improve accuracy.
The function of device-alias is added to allow users to give each device a readable name. For end-users and administrators, this makes it more friendly to distinguish between devices about license usage statistics.

Changelog

New

Added a new method DBR_SetDeviceFriendlyName to set a human-readable name that identifies the device.

Fixed

Fixed a bug that DBR_InitLicense failed when using online license on Linux ARM 32-bit system.

9.0.0 (03/15/2022)

Highlights

Simplified the license activation steps. Different license activation APIs are integrated into initLicense method.
Added support for Pharmacode.
Added support for Code 11, a 1D format.
Deformation resisting modes DRM_BROAD_WARP, DRM_LOCAL_REFERENCE and DRM_DEWRINKLE are optimized and detached from DRM_GENERAL. Users can specify a more effective deformation resisting mode when processing QRCode and DataMatrix codes.
Optimized the confidence scoring system for PDF417 codes.

Changelog

New

Added BF_CODE_11 under Enumeration BarcodeFormat to specify newly supported barcode format, Code 11.
Added BF2_PHARMACODE_ONE_TRACK, BF2_PHARMACODE_TWO_TRACK and BF2_PHARMACODE under Enumeration BarcodeFormat_2 to specify newly supported barcode format, Pharmacode.
Added a new error code DBRERR_PHARMACODE_LICENSE_INVALID which will be returned when the license of Pharmacode is invalid.
Added DRM_BROAD_WARP, DRM_LOCAL_REFERENCE and DRM_DEWRINKLE under Enumeration DeformationResistingMode to apply new deformation resisting modes.
Added a parameter FormatSpecification.PartitionModes
Added a parameter FormatSpecification.VerifyCheckDigit
Added new argument ConfidenceThreshold to the LocalizationModes mode arguments.

Changed

Changed value of BF_ONED under Enumeration BarcodeFormat to 0x003007FF to have BF_CODE_11 combined.
Changed value of BF_ALL under Enumeration BarcodeFormat to 0xFE3FFFFF to have BF_CODE_11 combined.
Changed the behaviour of DeformationResistingMode DRM_GENERAL which now only applies basic process to resist deformation.
Changed the return value of the method DBR_GetIdleInstancesCount from 0 to -1 when the available count needs to be updated from server by calling DBR_InitLicense.

Fixed

Fixed a bug that might cause a crash when using multiple threads for barcode decoding.
Fixed a bug that Function Code 1 (FNC1) character would not return if it was in the first position of GS1-128 codes.
Other small fixes and tweaks.

Breaking Change(s)

DBR_InitLicense now needs two more parameters to return detailed error message.

Deprecated

The following items are now deprecated. They still work in this version but could be removed in the near future.

Method DBR_InitLicenseFromServer
Method DBR_InitLicenseFromLicenseContent
Method DBR_OutputLicenseToString
Method DBR_OutputLicenseToStringPtr
Method DBR_FreeLicenseString
Method DBR_InitDLSConnectionParameters
Method DBR_InitLicenseFromDLS
Enumeration DM_ChargeWay
Enumeration DM_DeploymentType
Enumeration DM_LicenseModule
Enumeration DM_UUIDGenerationMethod
Enumeration Product