public PixelClaseColClase()
 {
     x     = 0;
     y     = 0;
     color = new ColorClase(0, 0, 0);
 }
 public PixelClaseColClase(int x, int y, byte r, byte g, byte b)
 {
     this.x = x;
     this.y = y;
     color  = new ColorClase(r, g, b);
 }
 public PixelStructColClase(int x, int y, ColorClase color)
 {
     this.x     = x;
     this.y     = y;
     this.color = color;
 }