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C# Imaging - Scan Patch Code in C#.NET


C# Patch Code Reader SDK Library by Using RasterEdge Barcode Reader SDK




C#.NET Patch Code Reader SDK Overview



RasterEdge .NET Imaging SDK includes the most professional and easiest 1D and 2D barcode reader which is able to keep your implementation costs low, and add barcode support to your .NET application in just a few lines of code. What's more, within RasterEdge Barcode Reader, users can simply decode and recognize all the supported barcodes from multiple image and document file formats.


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With RasterEdge fully-managed barcode reading code for C#.NET application development, users are capable of reading and decoding Patch Code on images (including: PNG, TIFF, JPEG, BMP and GIF) and documents (PDF and Word).


Besides, for Patch Code reading in other .NET applications, please see how to read Patch in VB.NET, ASP.NET barcodes decoding and .NET WinFroms barcodes scanning.



C#.NET Patch Code Decoding Features



Integrated with .NET Imaging SDK with the ability to save the decoded barcode to file


Scan and recognize Patch Code from any directions in C# class and console application


Available stand-alone that integrated with .NET imaging features


Read Patch Code from PDF document file and C#.NET image objects


C# code to scan Patch Code from Word document pages


Return decoded Patch Code data string in 100% accuracy




Steps to Read/Scan Data Matrix from Image/PDF/TIFF/Office File



Load an image or a document(PDF, TIFF, Word, Excel, PowerPoint).


Get a Bitmap or BasePage used to decode or read barcode.


Set the barcode reader settings.


Call the following static method in BarcodeReader.cs to read or scan barcode from Bitmap or BasePage.


  public static Barcode[] ReadBarcodes(ReaderSettings settings, BasePage page)


  public static Barcode[] ReadBarcodes(ReaderSettings settings, Bitmap image)


The barcode information will be saved in the array of Barcode object. While, if you read barcodes information from the BasePage failed, you can try as follows:


  Convert BasePage to Bitmap with higher resolution by Calling method ConvertToImage(int resolution) in the BasePage.cs:



            //Convert page to bitmap.
            //The default resolution is 96, if youo set the resolution higher, it will be better to read or scan barcode.
            Bitmap bmp = page.ConvertToImage(192);

            //  read all barcodes in the page
            Barcode[] barcodes = BarcodeReader.ReadBarcodes(settings, bmp);

            foreach (Barcode barcode in barcodes)
            {
                Console.WriteLine("Data: " + barcode.DataString);
            }



If you want to have a try, please refer to the following demo codes.


Note: When you get the error "Could not load file or assembly 'RasterEdge.Imaging.Basic' or any other assembly or one of its dependencies. An attempt to load a program with an incorrect format", please check your configure as follows:

       

       If you are using x64 libraries/dlls, Right click the project -> Properties -> Build -> Platform target: x64.

       

       If using x86, the platform target should be x86.




Read Patch Code on Images in C#.NET Project



Featuring a fast, highly accurate and reliable barcode reading and writing engine for C#.NET application, RasterEdge .NET Barcode Reader Add-on allows users to scan Patch Code from PNG, TIFF, JPEG, BMP & JPEG images. And below is C# demo code of reading Patch Code on png file.


Add necessary references to your C#.NET project. Right-click the project and select "Add Reference..." to locate and add the following DLLs as project references;


  RasterEdge.Imaging.Basic.dll


  RasterEdge.XImage.BarcodeScanner.dll


Use corresponding namespaces;


  using RasterEdge.XImage.BarcodeScanner;




            Bitmap bmp = new Bitmap(inputDirectory + "Sample_Barcode.png");
            //  config reader setting
            ReaderSettings settings = new ReaderSettings();
            //  define the type of barcode to scan
            settings.AddTypesToRead(BarcodeType.PatchCode);

            //  read all barcodes in the document
            Barcode[] barcodes = BarcodeReader.ReadBarcodes(settings, bmp);

            foreach (Barcode barcode in barcodes)
            {
                Console.WriteLine("Data: " + barcode.DataString);
            }





C#: DLLs for Patch Code Barcode Scanning from Document(TIFF, PDF, Office)



In order to run the following demo codes reading Patch Code from document, the steps as follows are necessary.


Add references:


  RasterEdge.Imaging.Basic.dll


  RasterEdge.Imaging.Basic.Codec.dll


  RasterEdge.Imaging.Processing.dll


  RasterEdge.Imaging.Font.dll


  RasterEdge.Imaging.Drawing.dll


  RasterEdge.XImage.BarcodeScanner.dll


  RasterEdge.XImage.Raster.Core.dll


  RasterEdge.XImage.Raster.dll


Use corresponding namespaces;


  using RasterEdge.XImage.BarcodeScanner;


  using RasterEdge.Imaging.Basic;




Recognize Patch Code from TIFF Image in C#.NET Project



Following C# sample code allows users to read Patch Code from TIFF image with RasterEdge .NET Barcode Reader.


Add references(Extra):


  RasterEdge.XDoc.TIFF.dll


Use corresponding namespaces(Extra):


  using RasterEdge.XDoc.TIFF;




            // load TIFF document
            TIFFDocument doc = new TIFFDocument(inputDirectory + "Sample_Barcode.tif");

            // get the page you want to scan
            BasePage page = doc.GetPage(0);

            // set reader setting
            ReaderSettings setting = new ReaderSettings();

            // set type to read
            setting.AddTypesToRead(BarcodeType.PatchCode);

            // read barcode from tiff page
            Barcode[] barcodes = BarcodeReader.ReadBarcodes(setting, page);

            foreach (Barcode barcode in barcodes)
            {
                // print the loaction of barcode on image
                Console.WriteLine(barcode.BoundingRectangle.X + "  " + barcode.BoundingRectangle.Y);

                // output barcode data onto screen 
                Console.WriteLine(barcode.DataString);
            }





Read Patch Code on PDF in C#.NET Project



RasterEdge Barcode Reader Add-on also supports reading Patch Code from PDF document images directly. For PDF document barcode reading, users need to convert PDF document to images at first.


Add references(Extra):


  RasterEdge.XDoc.PDF.dll


Use corresponding namespaces(Extra):


  using RasterEdge.XDoc.PDF;




            // load PDF document
            PDFDocument doc = new PDFDocument(inputDirectory + "Sample_Barcode.pdf");

            // get the page you want to scan
            BasePage page = doc.GetPage(0);

            // set reader setting
            ReaderSettings setting = new ReaderSettings();

            // set type to read
            setting.AddTypesToRead(BarcodeType.PatchCode);

            // read barcode from PDF page
            Barcode[] barcodes = BarcodeReader.ReadBarcodes(setting, page);

            foreach (Barcode barcode in barcodes)
            {
                // print the loaction of barcode on image
                Console.WriteLine(barcode.BoundingRectangle.X + "  " + barcode.BoundingRectangle.Y);

                // output barcode data onto screen 
                Console.WriteLine(barcode.DataString);
            }





Read Patch Code on Word in C#.NET Project



Comprehensive and reliable Word document Patch Code reader is one of the fundamental RasterEdge barcode reading capabilities. Users who want to decode Patch Code from Word document need to apply RasterEdge.Imaging.MSWordDocx.dll and RasterEdge.Imaging.MSWordDocx.dll to convert the Word document into images and then read the Patch Code from images. The detailed C# demo codes are listed below.


Add references(Extra):


  RasterEdge.XDoc.Word.dll


  RasterEdge.XDoc.Office.Inner.Common.dll


  RasterEdge.XDoc.Office.Inner.Office03.dll


Use corresponding namespaces(Extra):


  using RasterEdge.XDoc.Word;




            // load Word document
            DOCXDocument doc = new DOCXDocument(inputDirectory + "Sample_Barcode.docx");

            // get the page you want to scan
            BasePage page = doc.GetPage(0);

            // set reader setting
            ReaderSettings setting = new ReaderSettings();

            // set type to read
            setting.AddTypesToRead(BarcodeType.PatchCode);

            // read barcode from Word page
            Barcode[] barcodes = BarcodeReader.ReadBarcodes(setting, page);

            foreach (Barcode barcode in barcodes)
            {
                // print the loaction of barcode on image
                Console.WriteLine(barcode.BoundingRectangle.X + "  " + barcode.BoundingRectangle.Y);

                // output barcode data onto screen 
                Console.WriteLine(barcode.DataString);
            }





Detect Patch Code Barcode from Excel Sheet



If you want to scan Patch Code barcode(s) from whole Excel sheet or certain Excel area, this C# Patch Code barcode reader control can be a good choice.


Add references(Extra):


  RasterEdge.XDoc.Excel.dll


  RasterEdge.XDoc.Office.Inner.Common.dll


  RasterEdge.XDoc.Office.Inner.Office03.dll


Use corresponding namespaces(Extra):


  using RasterEdge.XDoc.Excel;




            // load Excel document
            XLSXDocument doc = new XLSXDocument(inputDirectory + "Sample_Barcode.xlsx");

            // get the page you want to scan
            BasePage page = doc.GetPage(0);

            // set reader setting
            ReaderSettings setting = new ReaderSettings();

            // set type to read
            setting.AddTypesToRead(BarcodeType.PatchCode);

            // read barcode from Excel page
            Barcode[] barcodes = BarcodeReader.ReadBarcodes(setting, page);

            foreach (Barcode barcode in barcodes)
            {
                // print the loaction of barcode on image
                Console.WriteLine(barcode.BoundingRectangle.X + "  " + barcode.BoundingRectangle.Y);

                // output barcode data onto screen 
                Console.WriteLine(barcode.DataString);
            }





Scan Patch Code Barcode Image from PowerPoint



This C# demo code allows developers to decode all Patch Code barcodes from PowerPoint slide.


Add references(Extra):


  RasterEdge.XDoc.PowerPoint.dll


  RasterEdge.XDoc.Office.Inner.Common.dll


  RasterEdge.XDoc.Office.Inner.Office03.dll


Use corresponding namespaces(Extra):


  using RasterEdge.XDoc.PowerPoint;




            // load PowerPoint document
            PPTXDocument doc = new PPTXDocument(inputDirectory + "Sample_Barcode.pptx");

            // get the page you want to scan
            BasePage page = doc.GetPage(0);

            // set reader setting
            ReaderSettings setting = new ReaderSettings();

            // set type to read
            setting.AddTypesToRead(BarcodeType.PatchCode);

            // read barcode from PowerPoint page
            Barcode[] barcodes = BarcodeReader.ReadBarcodes(setting, page);

            foreach (Barcode barcode in barcodes)
            {
                // print the loaction of barcode on image
                Console.WriteLine(barcode.BoundingRectangle.X + "  " + barcode.BoundingRectangle.Y);

                // output barcode data onto screen 
                Console.WriteLine(barcode.DataString);
            }