CodeReader/Cvb.Net/CodeReading

This example program is located in your CVB installation under %CVB%Tutorial/CodeReader/Cvb.Net/CodeReading.

Program.cs:

// This example program demonstrates how to read a Data Matrix code from an image.

 
using Stemmer.Cvb;
using Stemmer.Cvb.CodeReader;
using Stemmer.Cvb.CodeReader.Config;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
 
namespace CodeReading
{
 
    class Program
    {
        static void Main()
        {
            string cvbPath = Environment.GetEnvironmentVariable("CVB");
            string file = Path.Combine(cvbPath, @"tutorial\CodeReader\Images\DataMat\Surrounded.bmp");
            Console.WriteLine("Decoding file " + file);
            // create decoder
            using (var decoder = Decoder.Create())
            {
                // load image
                using (var image = Image.FromFile(file))
                {
                    // configure decoder
                    decoder.GetConfig<DataMatrix>().SetEnabled(true).SetPolarity(Polarity.DarkOnLight);
 
                    // decode
                    var results = decoder.Execute(image.Planes[0]);
 
                    // show results
                    PrintResults(results);
                }
            }
        }
 
        static void PrintResults(IEnumerable<Result> results)
        {
            Console.WriteLine(Environment.NewLine + results.Count() + " code(s) found:");
            foreach (Result result in results)
            {
                if (result.DecodeStatus == DecodeStatus.DecodeSuccess)
                {
                    Console.WriteLine("  ------------------------------------------------------------");
                    Console.WriteLine("  " + result.SymbolType + " code with content:");
                    Console.WriteLine(result.Data + Environment.NewLine);
                    Console.WriteLine("  found at center: (" + result.Center.X + "/" + result.Center.Y + ")");
                    Console.Write("  with corners at: ");
                    for (int k = 0; k < 4; k++)
                    {
                        Console.Write("(" + result.Corners[k].X + "/" + result.Corners[k].Y + ") ");
                    }
                    Console.Write(Environment.NewLine);
                    if (result.Result2D.HasValue)
                    {
                        var value = result.Result2D.Value;
 
                        Console.WriteLine("  size (width x height): " + value.Size.Width + " x " + value.Size.Height);
                        Console.WriteLine("  rows x columns: " + value.Rows + " x " + value.Columns);
                        Console.WriteLine("  Quality: " + value.Quality);
                    }
                    Console.WriteLine("  ------------------------------------------------------------\n");
                }
                else
                {
                    Console.WriteLine("decode status: " + result.DecodeStatus);
                }
            }
        }
    }
}