The .NET Machine-readable Zone (MRZ) Scanner SDK is a C# wrapper for Dynamsoft Label Recognizer, supporting x64 Windows, x64 Linux, Android and iOS. It is used to recognize MRZ information from passport, Visa, ID card and travel documents.

Click here to get a trial license key.

• Windows (x64)
• Linux (x64)
• Android
• iOS

• public static void InitLicense(string license): Initialize the license. It must be called before creating the MRZ scanner object.
• public static MrzScanner Create(): Create the MRZ scanner object.
• public Result[]? DetectFile(string filename): Detect MRZ from an image file.
• public Result[]? DetectBuffer(byte[] buffer, int width, int height, int stride, ImagePixelFormat format): Detect MRZ from a buffer.
• public static string? GetVersionInfo(): Get SDK version number.

• Set the license key:

  MrzScanner.InitLicense("LICENSE-KEY"); 

• Initialize the MRZ scanner object:

  MrzScanner scanner = MrzScanner.Create();

• Detect MRZ from an image file:

  Result[]? result = scanner.DetectFile(filename);

• Detect MRZ from a buffer:

  Result[]? result = scanner.DetectBuffer(bytes, width, height, stride, MrzScanner.ImagePixelFormat.IPF_RGB_888);

• Get SDK version number:

  string? version = MrzScanner.GetVersionInfo();

• Parse the MRZ information:

  string[] lines = new string[_results.Length];
  var index = 0;
  foreach (Result result in _results)
  {
      lines[index++] = result.Text;
  }
  
  MrzResult info = MrzParser.Parse(lines);

using System;
using System.Runtime.InteropServices;
using Dynamsoft;

namespace Test
{
    class Program
    {
        static void Main(string[] args)
        {
            MrzScanner.InitLicense("LICENSE-KEY"); 
            Console.WriteLine("Version: " + MrzScanner.GetVersionInfo());
            MrzScanner scanner = MrzScanner.Create();

            MrzScanner.Result[]? results = scanner.DetectFile("1.png");
            if (results != null)
            {
                foreach (MrzScanner.Result result in results)
                {
                    Console.WriteLine(result.Text);
                    Console.WriteLine(result.Points[0] + ", " +result.Points[1] + ", " + result.Points[2] + ", " + result.Points[3] + ", " + result.Points[4] + ", " + result.Points[5] + ", " + result.Points[6] + ", " + result.Points[7]);
                }
            }

        }
    }
}

• Command-line MRZ Scanner (Windows & Linux)

  # DEBUG
  dotnet run
  # RELEASE
  dotnet run --configuration Release

• Command-line MRZ Scanner with OpenCVSharp Windows runtime. To make it work on Linux, you need to install OpenCVSharp4.runtime.ubuntu.18.04-x64 package.

  dotnet run

• WinForms Desktop MRZ Scanner (Windows Only)

  dotnet run

  

• .NET MAUI for Android and iOS

  

# build dll for desktop
cd desktop
dotnet build --configuration Release

# build dll for android
cd android/sdk
dotnet build --configuration Release

# build dll for ios
cd ios/sdk
dotnet build --configuration Release

# build nuget package
nuget pack .\MrzScannerSDK.nuspec