public static int DoFullCompare(int R1, int G1, int B1, int R2, int G2, int B2)
{
ColorFormulas oColor1 = new ColorFormulas(R1, G1, B1);
ColorFormulas oColor2 = new ColorFormulas(R2, G2, B2);
return(oColor1.CompareTo(oColor2));
}
///
/// The smaller the number returned by this, the closer the colors are
///
///
///
public int CompareTo(ColorFormulas oComparisionColor)
{
// Based upon the Delta-E (1976) formula at easyrgb.com (http://www.easyrgb.com/index.php?X=DELT&H=03#text3)
double DeltaE = Math.Sqrt(Math.Pow((CieL - oComparisionColor.CieL), 2) + Math.Pow((CieA - oComparisionColor.CieA), 2) +
Math.Pow((CieB - oComparisionColor.CieB), 2));
return(Convert.ToInt16(Math.Round(DeltaE)));
}
private static int CompareHexColors(string firstColor, string secondColor)
{
if (firstColor.IndexOf("#", StringComparison.Ordinal) != -1)
{
firstColor = firstColor.Replace("#", "");
}
var r1 = int.Parse(firstColor.Substring(0, 2), System.Globalization.NumberStyles.HexNumber);
var g1 = int.Parse(firstColor.Substring(2, 2), System.Globalization.NumberStyles.HexNumber);
var b1 = int.Parse(firstColor.Substring(4, 2), System.Globalization.NumberStyles.HexNumber);
if (secondColor.IndexOf("#", StringComparison.Ordinal) != -1)
{
secondColor = secondColor.Replace("#", "");
}
var r2 = int.Parse(secondColor.Substring(0, 2), System.Globalization.NumberStyles.HexNumber);
var g2 = int.Parse(secondColor.Substring(2, 2), System.Globalization.NumberStyles.HexNumber);
var b2 = int.Parse(secondColor.Substring(4, 2), System.Globalization.NumberStyles.HexNumber);
var result = ColorFormulas.DoFullCompare(r1, g1, b1, r2, g2, b2);
return(result);
}
