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VB.NET Imaging - POSTNET Recognition Tutorial

VB Code to Scan POSTNET Within RasterEdge .NET Imaging Barcode Reader

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To get started with DocImage SDK for .NET, you are supposed to read VB.NET Imaging: Get Started first!

As a third party barcode reading and writing libraries provider, RasterEdge has been working hard to offer users the most prominent and comprehensive POSTNET barcode reading toolkit that can be integrated into both web and Windows VB.NET image applications.
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This VB.NET Imaging POSTNET Scanning toolkit empowers users with huge capabilities to detect and recognize POSTNET barcode from images(PNG, GIF, BMP, JPEG & TIFF) and document files(PDF & Word), which can be from web & Windows cameras, scanned materials and Internet.
RasterEdge .NET Imaging Barcode SDK is dedicated to providing users with the stable and flexible barcode reading and creating components in C#.NET, VB.NET, ASP.NET and .NET Windows Forms imaging applications. For the overall image barcode generating and scanning information in VB program, please go to VB.NET barcode creator - generate popular linear and 2D barcodes and VB.NET barcode reader - decode and scan nearly 30 1D & 2D barcode symbols.
From this POSTNET barcode reading guide, users can learn that:
  • Specific function features and technique requirements of POSTNET barcode reading in VB.NET project
  • How to use VB demo code to read POSTNET from supported image files
  • How to apply .NET Imaging Barcode Scanning control to VB.NET image application to decode POSTNET from scanned or not PDF document
  • How to use .NET Imaging MS Word DLL and .NET Imaging Barcode Decoding library to scan linear POSTNET on Word page
VB.NET POSTNET Scanning Library - Features and Techniques
  • Compatible with VB.NET Document Imaging Management components
  • RasterEdge .NET Imaging Pre-manipulation library ensures VB project POSTNET barcode image in high fidelity
  • POSTNET reading plugin can work well in multi-threaded VB.NET imaging applications
  • Support decoding POSTNET barcode from variable image forms, including raster and vector formats
  • Support detecting and scanning single or multiple POSTNET barcode(s) from black & white, grayscale, and color images
  • Able to scan and decode POSTNET barcode orientation ranging from 0 to 360 degrees
  • Get the comprehensive and confidential string value of recognized POSTNET barcode by using VB code
  • Support reading POSTNET on a full PDF or Word document page or just on a region of interest in VB project
  • 100% royalty-free POSTNET barcode reading engine for VB.NET developing project
VB.NET Barcode Reader to Decode POSTNET on Image
If you are trying the .NET Imaging Linear & 2D Barcode Reading library in your VB.NET program to scan POSTNET barcode on image, the license of RasterEdge .NET Imaging SDK is required. And if you are not so clear on how to activate and get the imaging license, please have a look from the link.
Following Visual Basic demo code is on POSTNENT barcode reading from multi-page TIFF image file. And you can have a customization by changing the import image format. Besides this, tutorial on POSTNENT barcode creating on image is also offered for better understanding.
Public Shared FolderName As String = "c:/"

Private Sub button1_Click(sender As Object, e As EventArgs)
Dim fileName As String = FolderName & "SampleBarcode.tif"

Dim datas As String() = BarcodeScanner.Scan(fileName, BarcodeType.POSTNET)

For Each data As String In datas
Debug.WriteLine(data)
Next
End Sub
VB.NET Barcode Scanner to Recognize POSTNET from PDF Page
We provide following VB sample code for users to decode and scan POSTNET barcode from PDF document. With .NET Imaging PDF Processing SDK plugin, users are able to have an easier barcode reading by using PDF barcode page detecting and getting methods in VB project.
Public Shared FolderName As String = "c:/"

Private Sub button1_Click(sender As Object, e As EventArgs)
Dim fileName As String = FolderName & "Sample.pdf"

Dim reImage As REImage = DirectCast(REFile.OpenDocumentFile(fileName, New PDFDecoder()).GetPage(0).ToImage(), REImage)

Dim datas As String() = BarcodeScanner.Scan(reImage, BarcodeType.POSTNET)

For Each data As String In datas
Debug.WriteLine(data)
Next
End Sub
VB.NET Barcode Decoder to Scan POSTNET on Word Page
Following easy to use VB demo code is for helping users to recognize POSTNET barcode from a specific Word page. In addition, no matter POSTNET barcode is on the whole Word page or just within a region of interest, it can be scanned in 100% accuracy and completeness.
Furthermore, users should know that as this VB.NET barcode reader is the free trial version, thus the first character of ISBN barcode on document or image file will be decoded randomly.
Public Shared FolderName As String = "c:/"

Private Sub button1_Click(sender As Object, e As EventArgs)
Dim fileName As String = FolderName & "Sample.docx"

Dim reImage As REImage = DirectCast(REFile.OpenDocumentFile(fileName, New DOCXDecoder()).GetPage(0).ToImage(), REImage)

Dim datas As String() = BarcodeScanner.Scan(reImage, BarcodeType.POSTNET)

For Each data As String In datas
Debug.WriteLine(data)
Next
End Sub


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