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Aspose.BarCode for Python via .NET 26.6

This article contains release notes information for Aspose.BarCode for Python via .NET 26.6.

All Changes

Key	Summary	Category
BARCODENET-39571	Pdf417 cannot be recognized from the image	Bug
BARCODENET-39579	Improve QR encoding	Enhancement

Public API changes and New Features

Improved PDF417 barcode recognition quality

The recognition quality of PDF417 barcodes has been improved, particularly for blurred and highly distorted images.

from aspose.barcode.barcoderecognition import BarCodeReader, DecodeType
from aspose.barcode.generation import BarcodeGenerator, EncodeTypes

gen = BarcodeGenerator(EncodeTypes.PDF417, "ASPOSE")
gen.save("test.png")

reader = BarCodeReader("test.png", DecodeType.PDF417)
for result in reader.read_bar_codes():
    print(result.code_text)

New encode_gs1_separator_in_byte_mode option

Added the encode_gs1_separator_in_byte_mode option to the QR encoder for the GS1QR symbology.

When enabled, GS1 group separators and the % character are encoded in Byte mode instead of using the QR Alphanumeric representation. This option improves compatibility with legacy barcode decoders that expect the GS1 group separator to be encoded as the 0x1D byte.

from aspose.barcode.barcoderecognition import BarCodeReader, DecodeType
from aspose.barcode.generation import BarcodeGenerator, EncodeTypes

gen = BarcodeGenerator(EncodeTypes.GS1QR, "(10)ASPOSE2001(21)ASPOSE2026")
gen.parameters.barcode.qr.encode_gs1_separator_in_byte_mode = True
gen.save("test.png")

reader = BarCodeReader("test.png", DecodeType.GS1QR)
for result in reader.read_bar_codes():
    print("BarCode CodeText: " + result.code_text)

New compaction modes support in QrExtCodetextBuilder

The QrExtCodetextBuilder class has been extended with support for explicit QR compaction mode selection through the QrExtCompactionMode enumeration.

Supported compaction modes:

AUTO - automatically selects the most efficient QR compaction mode.
NUMERIC - encodes codetext in QR Numeric mode (digits 0-9 only).
ALPHA_NUMERIC - encodes codetext in QR Alphanumeric mode.
BYTES - encodes codetext in QR Byte mode.
KANJI - encodes codetext in QR Kanji mode.

This feature allows manual control over the compaction mode of individual codetext fragments when generating QR barcodes in QREncodeMode.EXTENDED.

from aspose.barcode.barcoderecognition import BarCodeReader, DecodeType
from aspose.barcode.generation import (
    BarcodeGenerator,
    EncodeTypes,
    QREncodeMode,
    QrExtCodetextBuilder,
    QrExtCompactionMode,
)

text_builder = QrExtCodetextBuilder()
text_builder.add_codetext_with_compaction_mode(QrExtCompactionMode.NUMERIC, "1234567")
text_builder.add_codetext_with_compaction_mode(QrExtCompactionMode.ALPHA_NUMERIC, "ASPOSE2026")
text_builder.add_codetext_with_compaction_mode(QrExtCompactionMode.BYTES, "aspose2026")
text_builder.add_codetext_with_compaction_mode(QrExtCompactionMode.KANJI, "\u3062\u3063\u3064\u3065\u3066\u3067\u3068\u3069\u306A")

codetext = text_builder.get_extended_codetext()

gen = BarcodeGenerator(EncodeTypes.QR, codetext)
gen.parameters.barcode.qr.encode_mode = QREncodeMode.EXTENDED
gen.save("test.png")

reader = BarCodeReader("test.png", DecodeType.QR)
for result in reader.read_bar_codes():
    print("BarCode CodeText: " + result.code_text)

The BYTES compaction mode can also be used to encode the entire codetext in QR Byte mode:

from aspose.barcode.barcoderecognition import BarCodeReader, DecodeType
from aspose.barcode.generation import (
    BarcodeGenerator,
    EncodeTypes,
    QREncodeMode,
    QrExtCodetextBuilder,
    QrExtCompactionMode,
)

text_builder = QrExtCodetextBuilder()
text_builder.add_codetext_with_compaction_mode(QrExtCompactionMode.BYTES, "1234567890ASPOSE2026aspose2026")
codetext = text_builder.get_extended_codetext()

gen = BarcodeGenerator(EncodeTypes.QR, codetext)
gen.parameters.barcode.qr.encode_mode = QREncodeMode.EXTENDED
gen.save("test.png")

reader = BarCodeReader("test.png", DecodeType.QR)
for result in reader.read_bar_codes():
    print("BarCode CodeText: " + result.code_text)

New compaction mode support in QREncodeMode.EXTENDED

The QREncodeMode.EXTENDED encoding mode has been extended with support for explicit QR compaction mode selectors.

Supported compaction mode selectors:

\auto - automatically selects the most efficient QR compaction mode.
\num - encodes subsequent codetext in QR Numeric mode.
\alnum - encodes subsequent codetext in QR Alphanumeric mode.
\byte - encodes subsequent codetext in QR Byte mode.
\kanji - encodes subsequent codetext in QR Kanji mode.

This feature allows manual control over the compaction mode of individual codetext fragments.

from aspose.barcode.barcoderecognition import BarCodeReader, DecodeType
from aspose.barcode.generation import BarcodeGenerator, EncodeTypes, QREncodeMode

codetext = "\\num1234567890\\alnumASPOSE2026\\byteaspose2026\\kanji\u3062\u3063\u3064\u3065\u3066\u3067\u3068\u3069\u306A\\auto"

gen = BarcodeGenerator(EncodeTypes.QR, codetext)
gen.parameters.barcode.qr.encode_mode = QREncodeMode.EXTENDED
gen.save("test.png")

reader = BarCodeReader("test.png", DecodeType.QR)
for result in reader.read_bar_codes():
    print("BarCode CodeText: " + result.code_text)

The \byte selector can be used to encode the entire codetext in QR Byte mode:

from aspose.barcode.barcoderecognition import BarCodeReader, DecodeType
from aspose.barcode.generation import BarcodeGenerator, EncodeTypes, QREncodeMode

codetext = "\\byte1234567890ASPOSE2026aspose2026"

gen = BarcodeGenerator(EncodeTypes.QR, codetext)
gen.parameters.barcode.qr.encode_mode = QREncodeMode.EXTENDED
gen.save("test.png")

reader = BarCodeReader("test.png", DecodeType.QR)
for result in reader.read_bar_codes():
    print("BarCode CodeText: " + result.code_text)