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How does LeadTools detect, read and write barcodes

2020-11-06 22:27:51 roffey

There are many multi page files in the workplace . Able to load 、 Splitting and extraction are important requirements for many applications . Some of the most common types of files :PDF,TIFF and Microsoft Office Format , for example Docx,Doc,Xls and Xlsx.LEADTOOLS Supports all of these formats as well as 30 Many other multi page formats . Because there are many different types of multi page formats , So trying to support common formats can be a headache , And trying to support all of these formats is like a nightmare . Fortunately, ,LEADTOOLS SDK This application can be completed in less than five lines of code .

LEADTOOLS (Lead Technology) from Moe Daher and Rich Little Founded in 1990 year , Its headquarters are in Charlotte, North Carolina .LEAD Is established to make Daher Mr. Wang's invention in the field of digital image and compression technology is market-oriented . In the past, more than 30 In the course of development in ,LEAD With its market leadership in major countries around the world , It has become an established global leader in the field of digital image development tools .LEADTOOLS Developed and released LEAD It's an award-winning development kit .

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When encoding and decoding machine-readable data within a barcode , Speed and accuracy are the key .LEADTOOLS Provides a top-level computer vision barcode library than any other bar code on the market SDK All faster , More reliable , This ensures that you always get the best results .

Whether it's found on the back of your license PDF417 bar code , On the sticker is QR bar code , Or on the back of the product is UPC bar code ,LEADTOOLS Can support it and 100 A variety of different bar code symbols .

Just four lines of code , You can determine the symbol system of the bar code , Scope, etc . Whatever the angle or the color , Can quickly find and decode all supported symbol systems . To improve accuracy ,LEAD There are many different configuration options available , for example EnableDoublePass,EnablePreprocessing and EnableFastMode, To modify the behavior of barcode decoding to suit your application requirements .

Below C# The code shows you everything you need to detect and decode barcodes in an image . If you need a complete step-by-step tutorial , Check out our tutorial , This guide describes how to detect and extract barcodes and how to 1D and 2D The barcode is written into the image .

 

// READ BARCODE
static void ReadBarcode(RasterImage image)
{
    BarcodeEngine barcodeEngineInstance = new BarcodeEngine();

    try
    {
        BarcodeData[] dataArray = barcodeEngineInstance.Reader.ReadBarcodes(image, LeadRect.Empty, 0, null);

        StringBuilder sb = new StringBuilder();
        sb.AppendFormat("{0} barcode(s) found", dataArray.Length);
        sb.AppendLine();

        for (int i = 0; i < dataArray.Length; i++)
        {
            BarcodeData data = dataArray[i];

            sb.AppendFormat("Symbology: {0}, Location: {1}, Data: {2}", data.Symbology.ToString(), data.Bounds.ToString(), data.Value);
            sb.AppendLine();
        }
        Console.WriteLine(sb.ToString());
    }
    catch (Exception ex)
    {
        Console.WriteLine(ex);
    }
    Console.ReadLine();
}

// GENERATE BARCODE
static void WriteUPCABarcode(RasterImage image)
{
   BarcodeData data = new BarcodeData
   {
      Symbology = BarcodeSymbology.UPCA,
      Value = "01234567890",
      Bounds = new LeadRect(10, 10, 600, 200)
   };

   OneDBarcodeWriteOptions options = new OneDBarcodeWriteOptions
   {
      EnableErrorCheck = true,
      TextPosition = BarcodeOutputTextPosition.Default
   };

   barcodeEngine.Writer.WriteBarcode(image, data, options);
}

 

Give it a try !

Test yourself , Please make sure to get the latest... Free of charge from our website LEADTOOLS SDK assessment ( If not already installed ). The trial version is valid for 60 God .

Please keep an eye on , We will continue to release more tutorials , Programmers can use these tutorials to develop direct impact data capture , distinguish , Exchange applications with other urgent business needs .

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