Release Notes for Android SDK - 10.x

10.2.10 (04/16/2024)

Improved

• Security update for DynamsoftBarcodeReader library and other corresponding libraries.
• Supported multiple instances of the class CaptureVisionRouter.
• Improved the usage count logic of the concurrent license mode.
• Improved the experience of local cache usage when failing to connect the license server. The renewal of the local cache is optimized as well.
• Improved the barcode decoding performance:
  • Improved the accuracy when decoding OneD & PDF417 barcodes.
  • Improved the readability of dense DataMatrix codes.

New

• Updated the template system
  • Added StringLengthRange for TextDetectionMode.
  • Added Argument BarcodeFormat for DPMCodeReadingModes. Currently, you can specify “BF_DATAMATRIX” or “BF_QR_CODE” for the parameter.
  • Added ReferenceTaskNameArray under Location.ReferenceObjectFilter to filter the reference objects generated by the task name.
  • Added the support of the OutputTaskSetting definition. The following subparameters are available in OutputTaskSetting object:
    • OutputCondition
    • TaskResultArray
    • TargetROIDefName
    • TaskSettingNameArray
    • BackwardReferenceOutput
    • ReferenceTaskNameArray
    • ReferenceResultTypeArray
    • Operator
  • Offset parameter is optimized.
    • Added ReferenceObjectType to specify whether the reference object is an atomic object or the whole image.
    • Added ReferenceXAxis & ReferenceYAxis to define the X & Y axis.
    • Modified FirstPoint, SecondPoint, ThirdPoint & FourthPoint. You can specify whether the X or Y coordinate of the point is measured by percentage.
    • Deprecated ReferenceObjectSize Type.
• The following classes are migrated from DynamsoftCore module to DynamsoftCaptureVisionRouter module:
  • CapturedResult
  • IntermediateResultReceiver
  • CapturedResultReceiver
  • CapturedResultFilter
  • IntermediateResultManager
• Added a new call back method onShortLinesUnitReceived to the IntermediateResultReceiver class.
• Added methods pauseCapturing and resumeCapturing. Two new enumeration members, CS_PAUSED and CS_RESUMED, are added to CapturedState as well.
• Added a new method getDecodedBarcodesResult to the CapturedResult class to get all the result items with the type CRIT_BARCODE.
• Added new methods to the CandidateBarcodeZonesUnit class to add, remove or set the candidate barcode zones. CandidateBarcodeZone class is added to store the information of a single candidate barcode zone.
• Added new methods to the LocalizedBarcodesUnit class to add, remove or set the localized barcode elements.
• Added a new method setImageData to the ScaledUpBarcodeImageUnit class.
• Added new methods to the DeformationResistedBarcodeImageUnit class to add, remove or set the deformation-resisted barcode. DeformationResistedBarcode class is added to store the deformation-resisted barcode information.
• Added a new method setLocation to ComplementedBarcodeImageUnit class.
• Added new methods to the DecodedBarcodesUnit class to set or remove the decoded barcode elements.
• Added the following methods to the DecodedBarcodesResult class:
  • retain
  • release.
• Added new constructors to the following classes.
  • DecodedBarcodeElement
  • LocalizedBarcodeElement
• Added the following methods to the DecodeBarcodeElement class to modify the basic information of the barcode:
  • setFormat
  • setText
  • setBytes
  • setConfidence
• Added a new method setPossibleFormats to the LocalizedBarcodeElement.
• Added the following methods to the ObservationParameters class to specify the input only result unit.
  • setResultUnitTypesOnlyForInput
  • getResultUnitTypesOnlyForInput
• Added the following methods to the RegionObjectElement class to support the intermediate result modification.
  • setLocation
  • clone
  • retain
  • release
• Added a new method replace to the IntermediateResultUnit class to support the replacement of intermediate result units.
• Added setImageData methods to the following classes:
  • BinaryImageUnit
  • ColourImageUnit
  • EnhancedGrayscaleImageUnit
  • GrayscaleImageUnit
  • ScaledDownColourImageUnit
  • TextRemovedBinaryImageUnit
  • TextureRemovedBinaryImageUnit
  • TextureRemovedGrayscaleImageUnit
  • TransformedGrayscaleImageUnit
• Added new methods to the PredetectedRegionsUnit class to add, remove or set the predetected regions.
• Added new methods to the LineSegmentsUnit class to add, remove or set the line segments.
• Added new methods to the TextZonesUnit class to add, remove or set the text zones. Added a new class TextZone to store the information of a single text zone.
• Added a new method setContours to the ContourUnit class.
• Added new methods to the TextureDetectionResultUnit class to set the X & Y spacing.
• Added a new intermediate result unit, ShortLinesUnit, to output the detected short lines. The corresponding enumeration member IRUT_SHORT_LINES is added to the EnumIntermediateResultUnitType.
• Added the following methods to the CapturedResultItem class
  • getTargetROIDefName
  • getTaskName
  • retain
  • release
• Added the following new error codes
  • EC_IMAGE_SIZE_NOT_MATCH
  • EC_IMAGE_PIXEL_FORMAT_NOT_MATCH
  • EC_SECTION_LEVEL_RESULT_IRREPLACEABLE
  • EC_AXIS_DEFINITION_INCORRECT
  • EC_TEXT_LINE_GROUP_LAYOUT_CONFLICT
  • EC_TEXT_LINE_GROUP_REGEX_CONFLICT
  • EC_RESULT_TYPE_MISMATCH_IRREPLACEABLE
  • EC_LICENSE_CACHE_USED
• Added the following methods to the CapturedResult class.
  • A new override constructor.
  • retain
  • release
• Added a new supported image pixel format, binary 8 inverted. The corresponding enumeration member is added to the EnumImagePixelFormat.
• Added return value for the retain method of the IntermediateResultUnit class. The method will return the pointer of the current IntermediateResultUnit.

Breaking Changes

• Changed the logic of the stopCapturing method.
  • CaptureResultReceiver will not receive results after stopCapturing is triggered with waitForRemainingTasks false.
  • Support stop capturing after the pauseCapturing method is triggered.
• Changed the logic of the capturedResultItemTypes setting of SimplifiedCaptureVisionSettings:
  • If the result item types don’t match the specified template, the method updateSettings will return the error code EC_PARAMETER_VALUE_INVALID with the message “The captured result item types do not match the task configurations in the template”.
  • Based on the capturedResultItemTypes setting, the irrelevant tasks will be removed from the template.
  • The capturedResultItemTypes should include at least one of the CRIT_BARCODE, CRIT_TEXT_LINE, CRIT_DETECTED_QUAD, CRIT_NORMALIZED_IMAGE. Otherwise, the method updateSettings will return the error code EC_PARAMETER_VALUE_INVALID with the message “The captured result item types should contain at least one task result type”.
• Refactored the Contour class. Please view API reference - Contour class for more information.

Fixed

• Fixed a crash bug that might happen when triggering the setNextImageToReturn method of the ImageSourceAdapter class.
• Fixed a bug where error messages are not output when parsing the parameter templates.
• Fixed a misreading bug of the PDF417 barcodes on the South Carolina driver’s license.
• Internal changes to prevent crash bugs in barcode decoding.
• Fixed a bug where the capture might be blocked due to the network latency.
• Fixed the bugs of usage count.
  • Count twice for a single PDF417 barcode when a code parser task is implemented on the result.
  • The barcode decoding result might not be uploaded timely.
  • Patchcode might be counted even if there is no Patchcode license item.

10.0.21 (12/12/2023)

• Updated the internal package dependencies rules.

10.0.20 (10/26/2023)

DynamsoftBarcodeReader SDK has been revamped to integrate with DynamsoftCaptureVision (DCV) architecture, which is newly established to aggregate the features of functional products powered by Dynamsoft. The features are designed to be pluggable, customizable and interactable. In addition, the functional products share the computation so that their processing speed is much higher than working individually.

• DynamsoftCaptureVision architecture consists of:
  • ImageSourceAdapter(ISA), the standard input interface for you to convert image data from different sources into the standard input image data. In addition, ISA incorporates an image buffer management system that allows instant access to the buffered image data.
  • CaptureVisionRouter (CVR), an engine for you to update templates, retrieve images from ISA, coordinate corresponding functional products and dispatch the results to the receivers.
  • Functional products that perform image processing, content understanding and semantic processing. The functional products are pluggable and passively called by CVR when they are required.
  • Result receiver interfaces. You can implement CapturedResultReceiver (CRR) to receive the CapturedResults that output when the processing on an image is finalized. You can also implement IntermediateResultReceiver (IRR) to get timely results from different stages of the workflow.
• The parameter template system has been comprehensively upgraded.
  • Multiple algorithm task settings are available. You can define barcode decoding, label recognizing, document scanning and semantic processing tasks in one template file.
  • Extended the feature of the ROI system. By configuring the target ROI parameters, you can not only specify an ROI on the original image but also define the dependencies of the algorithm tasks. This feature enables you to customize the workflow when processing complex scenarios.
  • The image processing parameters are separated from the task parameters so that the template settings become more clear and concise.
• The intermediate result system has been improved.
  • Achieved the intermediate result sharing between different functional products. The results that have the same image source and processing parameters are directly reused, which speeds up the image processing workflow. You don’t need to add any additional code to enable the intermediate result sharing. The library can recognize all the reusable results automatically based on the template file you uploaded.
  • The readability and interactivity of the intermediate results are enhanced. IntermediateResultReceiver allows you to receive up to 27 different types of Intermediate results. You can clearly read which stage of the algorithm each result is output from. In addition, IntermediateResultManager allows you to intervene in the workflows by modifying the intermediate results.

The APIs of Dynamsoft Barcode Reader are comprehensively updated. Please follow the view upgrade instructions to update your code.