[AlgorithmInfo("Autovalutazione su compito del 09/07/2015", Category = "FEI")]
  public class Esercizio2015 : ImageOperation<Image<byte>, Image<byte>>
  {
    public override void Run()
    {
      // 1) Binarizzazione con soglia mediana (con sugg. Array.Sort?)
      var values = InputImage.CopyPixels();
      Array.Sort(values);
      int thr = values[values.Length / 2];
      var bin = InputImage.Clone();
      for (int i = 0; i < bin.PixelCount; i++)
      {
        bin[i] = (byte)(bin[i] >= thr ? 255 : 0);
      }
      OnIntermediateResult(new AlgorithmIntermediateResultEventArgs(bin.Clone(), "bin"));

      // 2) Chiusura (utilizzando Erosione e Dilatazione esistenti)
      var s = MorphologyStructuringElement.CreateCircle(9);
      var dilation = new MorphologyDilation(bin, s, 255);
      var erosion = new MorphologyErosion(dilation.Execute(), s, 255);
      var closed = erosion.Execute();
      OnIntermediateResult(new AlgorithmIntermediateResultEventArgs(closed.Clone(), "chiusura"));

      // 3) Estrazione dei bordi con morfologia
      var sb = MorphologyStructuringElement.CreateCircle(3);
      erosion = new MorphologyErosion(closed, sb, 255);
      var tmpB = erosion.Execute();
      var bordi = closed.Clone();
      for (int i = 0; i < bordi.PixelCount; i++)
      {
        if (bordi[i] == 255 && tmpB[i] == 255)
        {
          bordi[i] = 0;
        }
      }
      OnIntermediateResult(new AlgorithmIntermediateResultEventArgs(bordi.Clone(), "bordi"));

      // 4) Isola i pixel con dist da foreground >10
      var trDist = new DistanceTransform(closed, 0, MetricType.Chessboard).Execute(); // N.B. passo background come foreground
      OnIntermediateResult(new AlgorithmIntermediateResultEventArgs(trDist.Clone(), "trasf dist"));
      var distGt = trDist.Clone();
      for (int i = 0; i < distGt.PixelCount; i++)
      {
        distGt[i] = (closed[i]==0 && distGt[i] < 10 ? 255 : 0);
      }
      OnIntermediateResult(new AlgorithmIntermediateResultEventArgs(distGt.Clone(), "dist<10"));

      // 5) Sovrappone
      Result = InputImage.Clone(); // Copia InputImage sul risultato
      for (int i = 0; i < Result.PixelCount; i++)
      {
        if (bordi[i] == 255)
        {
          Result[i] = 255;
        }
        else if (distGt[i] != 255) // i pixel restanti
        {
          Result[i] /= 2;
        }
      }
    }

  }