Image-resize

interpolation non linear

static void Main(string[] args) {

  Bitmap bmp =(Bitmap) Bitmap.FromFile("clown.bmp");
  Bitmap bmp2 = new Bitmap(bmp.Width * 2, bmp.Height * 2);

  Color[,] dat2 = Resize.run(bmp);

  for (int y = 0; y < bmp2.Height; y++)
  {
    for (int x = 0; x < bmp2.Width; x++)
    {
      bmp2.SetPixel(x, y, dat2[x, y]);
    }
  }

  bmp2.Save("result.bmp");
}