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Release Notes - iOS 1.x

1.2.1 (06/08/2021)

Added a new parameter LabelRecognitionParameter.Timeout. Should the recognition time pass the value of this parameter, a new error code DLRERR_RECOGNITION_TIMEOUT will be returned.
Added a new parameter LabelRecognitionParameter.Pages that specifies a page or a subset of pages of a single file to run the recognition process on.
Added the following error codes: DLRERR_TIFF_READ_FAILED , DLRERR_PDF_READ_FAILED and DLRERR_PDF_DLL_MISSING. These error codes will be returned when the recognizer fails to read a TIFF file, a PDF file, or if the PDF DLL is missing, respectively.
Added a new property pageNumber to iDLRResult to identify the page on which the result is located.
Added parameters TextStringLengthRange and LineStringLengthRange that can be used to define the minimum and maximum string length when running the recognition process on a text area or a specific line, respectively. They are available as:
Added a new parameter MaxLineCharacterSpacing to limit the spacing between characters treated as one line. They are available as:
- LabelRecognitionParameter.MaxLineCharacterSpacing
- TextArea.MaxLineCharacterSpacing
Added parameters LineSpecification.FirstPoint, LineSpecification.SecondPoint, LineSpecification.ThirdPoint, and LineSpecification.FourthPoint to specify the coordinates of a line.
Added a new API appendSettingsFromFile to allow appending settings directly from a JSON file.

Improved the recognition performance.
Improved the regular expression parameter by supporting more RegEx pattern syntaxes.
Improved the recognition accuracy when dealing with skewed and italics characters.
Improved the recognition accuracy for serif fonts.

Supports recognition of A-Z, a-z, 0-9, ., -, _, (blank space), / and : characters.
Supports text recognition from BMP, JPEG, PNG and single-page TIFF files.
Supports zonal OCR and provides three ways to localize text areas:
- Manually pre-define an area in pixel units or by percentage.
- Specify an area relative to the barcode zone, which allows you to recognize accompanying texts near the barcode.
- Specify an area relative to a block of a certain colour or that contains text of a specified font colour. A common example would be a price tag, where the text of interest is always on a yellow square background, the yellow square can serve as the reference region.
Supports the usage of regular expressions to improve overall recognition accuracy and robustness.