Encapsulation of the ImageMagick connected component object.
    private void Test_Component(MagickImage image, ConnectedComponent component, int x, int y, int width, int height)
    {
      int delta = 2;

      Assert.AreEqual(x, component.X, delta);
      Assert.AreEqual(y, component.Y, delta);
      Assert.AreEqual(width, component.Width, delta);
      Assert.AreEqual(height, component.Height, delta);

      using (MagickImage area = image.Clone())
      {
        area.Crop(component.ToGeometry(10));
        Assert.AreEqual(width + 20, area.Width, delta);
        Assert.AreEqual(height + 20, area.Height, delta);
      }
    }