Detecção de Pupila

Instalador: http://easycomtec.com/magno/pi.rar

Código Fonte: http://easycomtec.com/magno/pi%20source.rar

Imagem: http://easycomtec.com/magno/image1.jpg

 

       string filepath;
       int limiteInferiorX = -1;
       int limiteInferiorY = -1;
       int limiteSuperiorX = -1;
       int limiteSuperiorY = -1;

       int pontoX1 = -1;
       int pontoY1 = -1;
       int pontoX2 = -1;
       int pontoY2 = -1;

       public MainWindow()
       {
           InitializeComponent();
       }

       private void button1_Click(object sender, RoutedEventArgs e)
       {
           var imagemTratada = Pupila(new Bitmap(filepath));
           var maiorDistancia = MaiorDistancia(imagemTratada);
           var raio = maiorDistancia / 2;
           var centroX = (pontoX2 + pontoX1) / 2;
           var centroY = (pontoY2 + pontoY1) / 2;
           label1.Content = String.Format("Raio:{0} Centro (X,Y):({1},{2})", raio, centroX, centroY);

           var originalImage = new Bitmap(filepath);

           for (int x = centroX - 2; x < centroX + 2; x++)
           {
               for (int y = centroY - 2; y < centroY + 2; y++)
               {
                   imagemTratada.SetPixel(x, y, System.Drawing.Color.Red);
                   originalImage.SetPixel(x, y, System.Drawing.Color.Red);

               }
           }

           image1.Source = ConvertImage(imagemTratada);
           image2.Source = ConvertImage(originalImage);
       }

       private Bitmap Pupila(Bitmap image)
       {
           for (int x = 0; x < image.Width; x++)
           {
               for (int y = 0; y < image.Height; y++)
               {
                   var color = image.GetPixel(x,y);
                   var value = (color.R + color.G + color.B) /3;
                   if (value < 50)
                   {
                       if (limiteInferiorX < 0)
                       {
                           limiteInferiorX = x;
                           limiteInferiorY = y;
                       }

                       if (limiteSuperiorX < x)
                       {
                           limiteSuperiorX = x;
                       }

                       if (limiteSuperiorY < y)
                       {
                           limiteSuperiorY = y;
                       }

                       image.SetPixel(x, y, System.Drawing.Color.Black);
                   }
                   else
                   {
                       image.SetPixel(x, y, System.Drawing.Color.White);
                   }
               }
           }

           return image;
       }

       private double MaiorDistancia(Bitmap image)
       {
           double maiorValor = 0;
           double aux;
           for (int x1 = limiteInferiorX; x1 < limiteSuperiorX; x1++)
           {
               for (int y1 = limiteInferiorY; y1 < limiteSuperiorY; y1++)
               {
                   if (image.GetPixel(x1, y1).R == 0)
                   {
                       for (int x2 = x1; x2 < limiteSuperiorX; x2++)
                       {
                           for (int y2 = y1; y2 < limiteSuperiorY; y2++)
                           {
                               if (image.GetPixel(x2, y2).R == 0)
                               {
                                   aux = EuclidianaDistancia(x1, y1, x2, y2);
                                   if (aux > maiorValor)
                                   {
                                       maiorValor = aux;

                                       pontoX1 = x1;
                                       pontoX2 = x2;
                                       pontoY1 = y1;
                                       pontoY2 = y2;
                                   }
                               }
                           }
                       }
                   }
               }
           }

           return maiorValor;
       }

       private double EuclidianaDistancia(int x1, int y1, int x2 , int y2)
       {
           return Math.Sqrt((Math.Pow((x1 - x2), 2) + Math.Pow((y1 - y2), 2)));
       }

 

       private System.Drawing.Color VerifyColor(int x, double factor,ref System.Drawing.Color color)
       {
           if (x % factor == 0)
           {
               if (color == System.Drawing.Color.Black)
               {
                   color = System.Drawing.Color.White;
               }
               else
               {
                   color = System.Drawing.Color.Black;
               }
           }

           return color;
       }  

       private ImageSource ConvertImage(Bitmap image)
       {
           MemoryStream ms = new MemoryStream();

           image.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);

           System.Windows.Media.Imaging.BitmapImage bImg = new System.Windows.Media.Imaging.BitmapImage();

           bImg.BeginInit();

           bImg.StreamSource = new MemoryStream(ms.ToArray());

           bImg.EndInit();

           return bImg;
       }

       private void buttonLoad_Click(object sender, RoutedEventArgs e)
       {
           OpenFileDialog openFileDialog1 = new OpenFileDialog();

           if (openFileDialog1.ShowDialog() == System.Windows.Forms.DialogResult.OK)
           {
               filepath = openFileDialog1.FileName;
               image1.Source = ConvertImage(new Bitmap(filepath));
           }

       }