/// <summary>
 /// Gets the "distance" between two colors calculated with CIELab algo
 /// </summary>
 /// EO Added 2011-09-08
 /// <param name="color1">First color.</param>
 /// <param name="color2">Second color.</param>
 public static double GetColorDistanceCIELab(Color c1, Color c2)
 {
     return(CIELab.GetDistanceBetweenCie2000(RGBtoLab(c1), RGBtoLab(c2)));
 }