Release Notes for Android SDK - 8.x

8.9.3 (03/02/2022)

Fixed a bug that might cause memory leak when using method setTextResultCallback and setIntermediateResultCallback.
Fixed a bug that might cause a crash on Android emulator when using it together with DynamsoftCameraEnhancer.

8.9.1 (12/28/2021)

Fixed a bug that might affect the processing speed.

8.9.0 (12/16/2021)

Version Highlights

Preset templates are available for users to configure the PublicRuntimeSettings parameters. Users can set the template via the method updateRuntimeSettings by specifying an EnumPresetTemplate member.

Changelog

New

Added method setCameraEnhancer to replace SetCameraEnhancerPara and DCESettingParameters. This method will simplify the binding of the Camera Enhancer to the Barcode Reader.
Added methods startScanning and stopScanning to control the start and stop of the video streaming barcode decoding thread. These methods are only active when using the Dynamsoft Camera Enhancer along with the Barcode Reader.
Overwrited method updateRuntimeSettings. Users can specify a member of EnumPresetTemplate in the method to select a preset parameter setting template for barcode decoding.

Improved

Simplified the usage of the different Modes in the PublicRuntimeSettings such as LocalizationModes, DeblurModes, and more. Users no longer must configure the entire Modes array to include the skipped entries as well. For example:
- In previous versions, when you set the DeblurModes:
```
runtimeSettings.deblurModes = new int[]{EnumDeblurMode.DM_BASED_ON_LOC_BIN,0,0,0,0,0,0,0};
```
- In v8.9 version:
```
runtimeSettings.deblurModes = new int[]{EnumDeblurMode.DM_BASED_ON_LOC_BIN};
```

Deprecated

The following methods/class are deprecated. They are currently available but will be removed in further updates.
- SetCameraEnhancerPara
- StartCameraEnhancer
- StopCameraEnhancer
- PauseCameraEnhancer
- ResumeCameraEnhancer
- DCESettingParameters

8.8.0 (10/19/2021)

Version Highlights

Added a new localization mode ONED_FAST_SCAN, which significantly improved the localization speed for 1D barcodes.
Added the ability to specify barcode width, height, angle to improve the recognition speed if you have advance information about barcodes.
Optimized the logic of confidence scoring for 2D barcodes. The 2D barcode results with confidence greater than 30 are more accurate.

Changelog

New

Added a new LocalizationModes item LM_ONED_FAST_SCAN, which significantly improved the localization speed for 1D barcodes.
Added a TextResult attribute isDPM to return whether the barcode is recognized by the DPM mode.

Improved

Improved the confidence calculation algorithm for 2D barcode results. Users can get even more accurate results by configuring the confidence filter.
Improved the barcode reading speed by applying the localized barcodes filter. The barcodes will be filtered according to the parameters BarcodeHeightRangeArray, BarcodeWidthRangeArray, BarcodeAngleRangeArray and MinRatioOfBarcodeZoneWidthToHeight.
Updated the exception message when the full license is invalid or has expired.

Breaking Change(s)

The low confidence barcode results will no longer be returned by default. The default value of parameter minResultConfidence is preset to 30, which can filter out the majority of misreading results and keep as many correct results as possible.

API Changes

Removed IOException from the exceptions of method decodeBufferedImage.

Fixed

Fixed a bug that might cause the application to crash when method StartCameraEnhancer or StopCameraEnhancer is triggered more than once.

8.6 (07/15/2021)

Version Highlights

Improved the confidence calculating algorithm for 1D barcodes. Misreading rate of results with confidence between 30-100 has been significantly reduced.
Improved the reading speed on clear images by implementing a new deblur mode DM_BASED_ON_LOC_BIN.

Changelog

New

Added more samples.
Added new API enableResultVerification. The barcode decoding results will be verified before output if this feature is enabled. This will highly improve the accuracy of barcode scanning.
Added new API enableDuplicateFilter. The barcode decoding results will be filtered before output if this feature is enabled. The duplicated results will be output only once for every three seconds.
Added two DeblurMode Enumerations, DM_BASED_ON_LOC_BIN and DM_SHARPENING_SMOOTHING, to support more usage scenarios.
Added method initLicenseFromDLS in BarcodeReader class to replace initLicenseFromLTS.
Added class DMDLSConnectionParameters to replace class DMLTSConnectionParameters.
Added interface DBRDLSLicenseVerificationListener and callback DLSLicenseVerificationCallback to replace DBRLTSLicenseVerificationListener and LTSLicenseVerificationCallback.

Improved

Improved the confidence algorithm for 1D barcode results. Users can get even more accurate results by configuring the confidence filter.

Fixed

Fixed a bug that might report error “AuthType is not RSA” when activating the license with initLicenseFromServer.

8.4 (06/08/2021)

New

Added a new attribute isMirrored to the TextResult class. isMirrored returns whether the barcode is mirrored.
Added a new argument, ThresholdCompensation, to the BinarizationModes mode arguments.

Improved

Faster recognition speeds when detecting dense QR Codes.
Improved the performance of boundary identification for DataMatrix codes.

Deprecated

ThreshValueCoefficient is now deprecated. It still works in this version but could be removed in the near future. We recommend using ThresholdCompensation instead.

Fixed

Fixed an issue that happens when calling initLicenseFromLTS if handShakeCode is not set.
Fixed a bug when trying to build the project in the release mode with code shrinker enabled.

8.2.1 (05/27/2021)

New

Dynamsoft Camera Enhancer (DCE) is now available for DBR users to quickly deploy the camera module. We added new APIs and a new class to simplify the user operations when using DBR and DCE at the same time.
Added Camera Enhancer setting APIs. These new APIs will benefit users by easily controlling the status of DCE.
Added a new class, DCESettingParameters, and a new API, SetCameraEnhancerParam, to enable the parameter transfer between DBR and DCE. The parameter transferring will improve the focus ability of the camera.

Improved

Samples are updated. DCE is handling the camera-related settings in the samples.

8.2 (03/17/2021)

New

Added a new mode argument, FindAccurateBoundary, to RegionPredetectionModes that determines if the SDK attempts to find an accurate boundary when RegionPredetectionModes is set to RPM_GENERAL_HSV_CONTRAST.
Added a new an attribute, organizationID (string) to DMLTSConnectionParameters. The attribute adds a new layer of security for both full and trial licenses.

Improved

Improved both the localization and decoding algorithms for Postal Codes.
Localization mode LM_STATISTICS_POSTAL_CODE will not be added automatically when barcode format postal code is enabled. You can still add LM_STATISTICS_POSTAL_CODE manually to get better performance on localizing the postal codes.

Fixed

Resolved a bug that infrequently causes the application to crash when decoding a MicroPDF417 barcode.

8.1.2 (01/22/2021)

New

Added mode, page, totalPage and parityData in the QRCodeDetails Class.

Improved

Improved the recognition accuracy for GS1 Databar.
Removed the exception code from barcodeText when using a valid trial license.
Included native C++ DLL files in the .NET assembly files, so users don’t need to manually copy these files to the specific folder.

Fixed

Fixed a bug where barcodeFormatString, barcodeFormatString_2, regionName and documentName don’t have value in the IRT_TYPED_BARCODE_ZONE intermediate result.

8.1.1 (01/19/2021)

Fixed

Fixed a crash issue when calling initLicenseFromLTS or decode*** methods in Android 6.x and below.

8.1 (01/12/2021)

New

Added support for MSI Code (Modified Plessey).
Added a new member barcodeZoneMinDistanceToImageBorders in the PublicRuntimeSettings Class to set the minimum distance (in pixels) between barcode zone and image borders. Previously, it is only available in the JSON template. It can be now configured by setting PublicRuntimeSettings -> barcodeZoneMinDistanceToImageBorders.
Added exception error message to TextResult when license initialization fails or decoding authorization fails.

Improved

Improved the localization robustness for QR Code.
Improved the localization for low quality 1D barcodes.
Improved the deblurring performance and recognition rate for DataMatrix.
Improved the recognition rate for Aztec.

Fixed

Fixed a bug where Micro PDF417 may not be localized in multiple-barcode scenarios.
Fixed a bug where the ExpectedBarcodesCount and BarcodeFormat parameters do not work in the RegionDefinition.

8.0 (11/17/2020)

New

(For IntermediateResult Advanced Module) Added support for decoding IntermediateResult. For example, users with a binarized image could use this function to skip some image preprocessing steps.
Implemented a new licensing tracking mechanism, License 2.0, which makes it easier for users to track license usage.
Added a new format control parameter, BarcodeZoneMinDistanceToImageBorders, to set the minimum distance (in pixels) between the barcode zone and image borders.
Added a new format control parameter, MinRatioOfBarcodeZoneWidthToHeight, to set the minimum ratio (width/height) of the barcode zone.
Added a new format control parameter, BarcodeZoneBarCountRangeArray, to set the barcode zone’s range of bar count for barcode search.
Added a new argument, SpatialIndexBlockSize, for RPM_GENERAL_RGB_CONTRAST, RPM_GENERAL_GRAY_CONTRAST and RPM_GENERAL_HSV_CONTRAST.
Added a new parameter, DeblurModes, so users can use different deblur algorithms for different scenarios. DeblurModes has the following enum types: DirectBinarization, ThresholdBinarization, GrayEqulization, Smoothing, Morphing, DeepAnalysis and Sharpening.

Improved

Improved the localization speed for the ScanDirectly mode.
Improved the localization accuracy for DataMatrix codes with a narrow quiet zone.

Feature Deprecated

DeblurLevel is now deprecated. It still works in this version but could be removed in the near future. We recommend using DeblurModes instead.