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VB.NET Imaging - How to Scan 1D EAN-8

VB.NET EAN-8 Barcode Reader for EAN-8 Recognition from Doc & Image

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VB.NET EAN-8 Barcode Detecting & Decoding
How to integrate advanced EAN-8 barcode scanning and reading features into VB.NET imaging application? To help VB.NET programmers solve this issue, RasterEdge develops this 100% managed EAN-8 barcode decoder control toolkit, which aims at detecting and reading EAN-8 barcode from image file and document type.
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Using this .NET EAN-8 barcode scanning solution, VB.NET developers can easily read multiple EAN-8 barcodes from source document image file at once, without depending on other third-party libraries.
From this online tutorial page, you will get information on EAN-8 barcode image recognition from following aspects.
  • Key features of VB.NET linear EAN-8 barcode image reader SDK
  • Introductions on VB.NET EAN-8 barcode scanner SDK dlls
  • How to decode EAN-8 barcode from image using VB.NET code
  • How to scan linear EAN-8 barcode image from PDF file by VB.NET code
  • How to recognize EAN-8 barcode image from Word document in VB.NET application
VB.NET EAN-8 Barcode Reader SDK Features
  • Mature linear EAN-8 barcode reader control that is developed in .NET Framework application
  • Able to read EAN-8 barcode that has 2-digit or 5-digit supplement data using VB.NET programming code
  • Allow VB.NET developers to decode EAN-8 barcode from image or document at any orientation
  • Allow VB.NET developers to read multiple EAN-8 barcodes and return capturing information to data string
  • EAN-8 barcode scanning area of source document & image can be defined accurately using VB.NET code
  • The maximum number of detected EAN-8 barcode images can be easily set by VB.NET developers
  • Easily read EAN-8 barcode from png, gif, jpeg, bmp and tiff in VB.NET class application
VB.NET EAN-8 Barcode Decoder SDK DLLs
The core dlls of this VB.NET EAN-8 barcode reader SDK are RasterEdge.Imaging.Barcode.Scanner.dll and RasterEdge.Imaging.Basic.dll, which can be used to detect and decode EAN-8 barcode from raster image files, like png, jpeg, tiff, bmp and gif. Those two compact dlls, if coupled with RasterEdge.Imaging.MSWordDocx.dll, can be used to read EAN-8 barcode image from Word file. If integrated with RasterEdge.Imaging.PDF.dll, they can be used for EAN-8 barcode scanning and recognition from PDF document file by VB.NET code.
Here we specifically address the two functions that are embedded in this VB.NET EAN-8 barcode reader SDK, which is designed to help VB.NET developers speed up the linear barcode scanning and reading rate.
This VB.NET barcode reader SDK offers API for developers to accelerate the barcode reading rate by defining a smaller EAN-8 barcode scanning area. Besides, VB.NET developers can also accelerate EAN-8 barcode scanning speed by setting a maximum number of detected EAN-8 barcodes. Then the barcode reader control will stop scanning once the detected EAN-8 barcode number reaches the maximum value.
VB.NET Code for EAN-8 Barcode Decoding from Image
With this VB.NET EAN-8 barcode reader SDK, users can decode all EAN-8 barcode images from source image file, without using any third-party image editors. The sample VB.NET code below is used to decode EAN-8 barcode from target TIFF image file. And the TIFF image file can be drawn from either local disks or web server.
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.EAN8)

For Each data As String In datas
Debug.WriteLine(data)
Next
End Sub
VB.NET Code to Read EAN-8 Barcode Image from PDF
Using RasterEdge EAN-8 barcode reader control add-on and VB.NET demo code below, developers can detect and decode all EAN-8 barcode images from target PDF page, without installing any Adobe related product. The information that is captured from EAN-8 barcode can be outputted in the form of data string or binary value.
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.EAN8)

For Each data As String In datas
Debug.WriteLine(data)
Next
End Sub
VB.NET Code for EAN-8 Barcode Scanning from Word
This VB.NET EAN-8 barcode scanner SDK can be also used to decode & read EAN-8 barcode image from Word document file independently. No Microsoft Office Word processor control is required in this advanced EAN-8 barcode detecting and recognition application.
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.EAN8)

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


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