Set Barcode Reader Options

VB C#

using IronBarCode;

BarcodeReaderOptions myOptionsExample = new BarcodeReaderOptions()
{
    // Choose a reading speed from: Faster, Balanced, Detailed, ExtremeDetail
    // There is a tradeoff in performance as more detail is set
    Speed = ReadingSpeed.Balanced,

    // Reader will stop scanning once a single barcode is found (if set to true)
    ExpectMultipleBarcodes = true,

    // By default, all barcode formats are scanned for
    // Specifying a subset of barcode types to search for would improve performance
    ExpectBarcodeTypes = BarcodeEncoding.AllOneDimensional,

    // Utilize multiple threads to read barcodes from multiple images in parallel
    Multithreaded = true,

    // Maximum threads for parallelized barcode reading
    // Default is 4
    MaxParallelThreads = 2,

    // The area of each image frame in which to scan for barcodes
    // Specifying a crop area will significantly improve performance and avoid noisy parts of the image
    CropArea = new System.Drawing.Rectangle(),

    // Special setting for Code39 barcodes
    // If a Code39 barcode is detected, try to read with both the base and extended ASCII character sets
    UseCode39ExtendedMode = true
};

Imports IronBarCode

Private myOptionsExample As New BarcodeReaderOptions() With {
	.Speed = ReadingSpeed.Balanced,
	.ExpectMultipleBarcodes = True,
	.ExpectBarcodeTypes = BarcodeEncoding.AllOneDimensional,
	.Multithreaded = True,
	.MaxParallelThreads = 2,
	.CropArea = New System.Drawing.Rectangle(),
	.UseCode39ExtendedMode = True
}

Install-Package BarCode

Set Barcode Reader Options

IronBarcode offers a range of settings within the BarcodeReaderOptions class to enable tailored and optimized barcode reading. These options allow you to trade-off resources for accuracy, control the reading scope, and optimize reading strategies. Here's an example demonstrating how to utilize these options effectively:

using IronBarCode; // Import the IronBarcode library

public class BarcodeReaderExample
{
    public static void Main()
    {
        // Initialize the BarcodeReaderOptions
        BarcodeReaderOptions options = new BarcodeReaderOptions();

        // Set up the reader options

        // Optimize for accuracy by allowing more resources for barcode reading
        options.TotalBarcodes = 1; // Stop after finding the first barcode
        options.TreatAllDecodersAs = BarcodeEncoding.AutoDetect; // Use automatic detection for barcode type

        // Focus the area of interest to improve efficiency or performance
        options.CropRegion = new System.Drawing.Rectangle(0, 0, 100, 100); // Define a crop region within the image

        // Limit the number of parallel threads (improves performance on multi-core systems)
        options.MaxThreads = 4;

        // Read the barcode from an image path and apply the customized options
        var results = BarcodeReader.ReadBarcodesFromFile("example.png", options);

        // Iterate through the results and output the barcode text
        foreach (var result in results)
        {
            Console.WriteLine($"Found barcode: {result.Text}");
        }
    }
}

using IronBarCode; // Import the IronBarcode library

public class BarcodeReaderExample
{
    public static void Main()
    {
        // Initialize the BarcodeReaderOptions
        BarcodeReaderOptions options = new BarcodeReaderOptions();

        // Set up the reader options

        // Optimize for accuracy by allowing more resources for barcode reading
        options.TotalBarcodes = 1; // Stop after finding the first barcode
        options.TreatAllDecodersAs = BarcodeEncoding.AutoDetect; // Use automatic detection for barcode type

        // Focus the area of interest to improve efficiency or performance
        options.CropRegion = new System.Drawing.Rectangle(0, 0, 100, 100); // Define a crop region within the image

        // Limit the number of parallel threads (improves performance on multi-core systems)
        options.MaxThreads = 4;

        // Read the barcode from an image path and apply the customized options
        var results = BarcodeReader.ReadBarcodesFromFile("example.png", options);

        // Iterate through the results and output the barcode text
        foreach (var result in results)
        {
            Console.WriteLine($"Found barcode: {result.Text}");
        }
    }
}

Imports IronBarCode ' Import the IronBarcode library

Public Class BarcodeReaderExample
	Public Shared Sub Main()
		' Initialize the BarcodeReaderOptions
		Dim options As New BarcodeReaderOptions()

		' Set up the reader options

		' Optimize for accuracy by allowing more resources for barcode reading
		options.TotalBarcodes = 1 ' Stop after finding the first barcode
		options.TreatAllDecodersAs = BarcodeEncoding.AutoDetect ' Use automatic detection for barcode type

		' Focus the area of interest to improve efficiency or performance
		options.CropRegion = New System.Drawing.Rectangle(0, 0, 100, 100) ' Define a crop region within the image

		' Limit the number of parallel threads (improves performance on multi-core systems)
		options.MaxThreads = 4

		' Read the barcode from an image path and apply the customized options
		Dim results = BarcodeReader.ReadBarcodesFromFile("example.png", options)

		' Iterate through the results and output the barcode text
		For Each result In results
			Console.WriteLine($"Found barcode: {result.Text}")
		Next result
	End Sub
End Class

$vbLabelText $csharpLabel

Explanation:

BarcodeReaderOptions: This class provides options to customize the reading of barcodes, making the process more efficient and accurate based on specific needs.
TotalBarcodes: By setting this to 1, the reader will stop after finding the first barcode, improving performance when only one barcode is expected.
TreatAllDecodersAs: Automatically detects the type of barcode, simplifying the process when you have varied barcode formats.
CropRegion: Allows focusing on a specific area of the image, which can significantly improve reading times and accuracy when the barcode position is approximately known.
MaxThreads: Specifies the maximum number of threads to be used in parallel, enhancing performance on systems with multiple CPU cores.

This configuration offers a balance between resource use, speed, and accuracy, tailored to your specific barcode reading needs.