Aspose.BarCode for Java 19.6 is released which contains new properties and improvements which will ease your work to read and write barcodes with ECI encoding information and also make possible to read low-resolution TIFF images. These API changes and other details can be obtained in the release note page of the API documentation. Let me share the details of these new features and their use in the programming.
Implementing barcode reading is quite a complex task. Bar code readers need a lot of configurations and information while reading a barcode e.g. the used references for encoding the data in the symbol. This information is embedded in the barcode by adding Extended Channel Interpretation (ECI) setting in the barcode. This mechanism allows usually unsupported national character sets such as Arabic, Greek or Japanese to be used in barcode symbols. When a symbol is scanned, this information is not intended to be the part of the barcode data, that is why it is kept transparent while scanning a symbol. It is just a switch or tick-box that is checked by the reader followed by a symbology-dependent ECI selection. In Basic Channel Mode, the ECI control information is not transmitted from the reader to the host system. In Extended Channel Mode, both the ECI control information and the data are transmitted to the host system.
Aspose.Barcode has implemented this feature by providing a property QrParameters.setQrECIEncoding() and getQrECIEncoding() in the barcode generator class. For example, if you want to set the encoding mode to ECI and encoding scheme to UTF 8 you should use the following statements while creating a barcode.
Following are the ECI encodings which are provided while using this feature.
- ISO_8859_1 – ISO/IEC 8859-1 Latin alphabet No. 1 encoding. ECI Id:”\000003″.
- ISO_8859_2 – ISO/IEC 8859-2 Latin alphabet No. 2 encoding. ECI Id:”\000004″.
- ISO_8859_3 – ISO/IEC 8859-3 Latin alphabet No. 3 encoding. ECI Id:”\000005″.
- ISO_8859_4 – ISO/IEC 8859-4 Latin alphabet No. 4 encoding. ECI Id:”\000006″.
- ISO_8859_5 – ISO/IEC 8859-5 Latin/Cyrillic alphabet encoding. ECI Id:”\000007″.
- ISO_8859_6 – ISO/IEC 8859-6 Latin/Arabic alphabet encoding. ECI Id:”\000008″.
- ISO_8859_7 – ISO/IEC 8859-7 Latin/Greek alphabet encoding. ECI Id:”\000009″.
- ISO_8859_8 – ISO/IEC 8859-8 Latin/Hebrew alphabet encoding. ECI Id:”\000010″.
- ISO_8859_9 – ISO/IEC 8859-9 Latin alphabet No. 5 encoding. ECI Id:”\000011″.
- ISO_8859_10 – ISO/IEC 8859-10 Latin alphabet No. 6 encoding. ECI Id:”\000012″.
- ISO_8859_11 – ISO/IEC 8859-11 Latin/Thai alphabet encoding. ECI Id:”\000013″.
- ISO_8859_13 – ISO/IEC 8859-13 Latin alphabet No. 7 (Baltic Rim) encoding. ECI Id:”\000015″.
- ISO_8859_14 – ISO/IEC 8859-14 Latin alphabet No. 8 (Celtic) encoding. ECI Id:”\000016″.
- ISO_8859_15 – ISO/IEC 8859-15 Latin alphabet No. 9 encoding. ECI Id:”\000017″.
- ISO_8859_16 – ISO/IEC 8859-16 Latin alphabet No. 10 encoding. ECI Id:”\000018″.
- Shift_JIS – Shift JIS (JIS X 0208 Annex 1 + JIS X 0201) encoding. ECI Id:”\000020″.
- Win1250 – Windows 1250 Latin 2 (Central Europe) encoding. ECI Id:”\000021″.
- Win1251 – Windows 1251 Cyrillic encoding. ECI Id:”\000022″.
- Win1252 – Windows 1252 Latin 1 encoding. ECI Id:”\000023″.
- Win1256 – Windows 1256 Arabic encoding. ECI Id:”\000024″.
- UTF16BE – ISO/IEC 10646 UCS-2 (High order byte first) encoding. ECI Id:”\000025″.
- UTF8 – ISO/IEC 10646 UTF-8 encoding. ECI Id:”\000026″.
- US_ASCII – ISO/IEC 646:1991 International Reference Version of ISO 7-bit coded character set encoding. ECI Id:”\000027″.
- Big5 – Big 5 (Taiwan) Chinese Character Set encoding. ECI Id:”\000028″.
- GB18030 – GB (PRC) Chinese Character Set encoding. ECI Id:”\000029″.
- EUC_KR – Korean Character Set encoding. ECI Id:”\000030″.
For more information visit the following article:
Barcode recognition on low resolution TIFF
Some times there are images which are quite low in resolution and cannot be detected like one of the reasons can be fully wiped bars in the barcode. This issue can make them too difficult rather impossible to be read by any barcode reading software. We have put a special effort for this and added a new property to overcome this issue. New public property AllowOneDWipedBarsRestoration has been added to the QualitySettings. It allows engine for 1D barcodes to recognize barcodes with single wiped/glued bars in pattern. Property is enabled by default in HighQuality, MaxBarCodes modes.
Currently the property is used for Code128, GS1Code128, SCC14, EAN14, SSCC18, AustralianPosteParcel, SwissPostParcel barcode types. You can use this feature by calling following line of code before reading information from a BarCodeReader object to signal it to read low resolution TIFF images.