public static HSL HSBToHSL(HSB hsb)
{
HSL hsl = new HSL();
double ld;
// Convert B to L
ld = Math.Exp((hsb.B - 257.7) / 149.9);
//{ ColorHLSToRGB requires H, L and S to be in 0..1 range. }
hsl.H = (hsb.H) / 255.0;
hsl.S = (hsb.S) / 255.0;
hsl.L = ld;
return(hsl);
}
public static HSB HSLToHSB(HSL hsl)
{
HSB hsb = new HSB();
hsb.H = (byte)Math.Round(255.0 * hsl.H);
hsb.S = (byte)Math.Round(255.0 * hsl.S);
if (hsl.L < 0.1793)
{
hsb.B = 0;
}
else if (hsl.L > 0.9821)
{
hsb.B = 0xff;
}
else
{
hsb.B = (byte)Math.Round(257.7 + 149.9 * Math.Log(hsl.L));
}
return(hsb);
}
public static uint HSBToUInt32(HSB hsb)
{
return((uint)(hsb.H | (hsb.S << 8) | (hsb.B << 16)));
}