C# - Text aus einem Bild lesen

using System.Collections;
using System.IO;
using System.Drawing.Imaging;


private string ReadTextFromImage(string file, MODI.MiLANGUAGES lang)
        {
            
            try
            {
                StringBuilder StringReturn = new StringBuilder();
                MODI.Document mod = new MODI.Document();
                mod.Create(file);
                mod.OCR(lang, true, true);
                MODI.Image image = (MODI.Image)mod.Images[0];
                StringReturn.Append(image.Layout.Text);
                mod.Close();
                return StringReturn.ToString();

            }
            catch (Exception ex)
            {
                return string.Empty;
            }
        }

private void Test()
{
     MessageBox.Show(ReadTextFromImage("D:\\test.jpg", MODI.MiLANGUAGES.miLANG_GERMAN));
}