title: Tesseract c# : Find nothing in my case
body: <p>I've add the C# wrapper for tesseract : <a href="https://github.com/charlesw/tesseract" rel="nofollow noreferrer">TesseractEngine</a></p>
  
  <p>I've two types of images to read : </p>
  
  <p><a href="https://i.stack.imgur.com/JgZHG.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/JgZHG.jpg" alt="enter image description here"></a></p>
  
  <p>And the second type (one letter only) : </p>
  
  <p><a href="https://i.stack.imgur.com/Oooyg.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Oooyg.jpg" alt="enter image description here"></a></p>
  
  <p>But in both case, Tesseract return empty string.</p>
  
  <p>Here is my code (found in docs) :</p>
  
  <pre><code>    public static void Main(string[] args)
          {
          var testImagePath = @"C:\plate\ExtractLicensePlate-0.jpg";
          if (args.Length &gt; 0)
          {
              testImagePath = args[0];
          }
  
          try
          {
              using (var engine = new TesseractEngine(@"./tessdata", "eng", EngineMode.Default))
              {
                  engine.SetVariable("tessedit_char_whitelist", "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789");
  
                  using (var img = Pix.LoadFromFile(testImagePath))
                  {
                      using (var page = engine.Process(img))
                      {
                          var text = page.GetText();//&lt;-- empty :(
  
                      }
                  }
              }
          }
          catch (Exception e)
          {                
              Console.WriteLine(e.ToString());
              Console.Read();
          }
          Console.Write("Press any key to continue . . . ");
          Console.ReadKey(true);
      }
  </code></pre>
  
  <p>Maybe I miss an option or something else?</p>
  
  <p>EDIT : I've try this kind but no success to :</p>
  
  <p><a href="https://i.stack.imgur.com/AKYAj.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/AKYAj.png" alt="enter image description here"></a></p>
  
  <p>EDIT 2 : I've try Gray and Black and White and Tesseract Give me : EEEEEEE</p>
  
  <p><a href="https://i.stack.imgur.com/1csw2.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/1csw2.jpg" alt="enter image description here"></a></p>
  
  <p>I don't know what I can do better... :</p>