///
/// 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)));
}
public static int ColorDiff(Color col1, Color col2)
{
Color temp = Color.Empty;
if (col2.R < col1.R)
{
temp = col2;
}
else if (col2.R == col1.R && col2.G < col1.G)
{
temp = col2;
}
else if (col2.R == col1.R && col2.G == col1.G && col2.B < col1.B)
{
temp = col2;
}
if (temp != Color.Empty)
{
col2 = col1;
col1 = temp;
}
ColorFormulas oColor1 = new ColorFormulas(col1.R, col1.G, col2.B);
ColorFormulas oColor2 = new ColorFormulas(col2.R, col2.G, col2.B);
return(oColor1.CompareTo(oColor2));
}