protected override Rgb ToRgb()
{
Xyz xyz;
if (Y2.Equals(0))
{
xyz = new Xyz(0, 0, 0);
}
else
{
xyz = new Xyz
{
X = X * (Y1 / Y2),
Y = Y1,
Z = (1.0 - X - Y2) * (Y1 / Y2)
};
}
return xyz.ToColorSpace<Rgb>();
}
protected override Rgb ToRgb()
{
var referenceDenominator = Xyz.WhiteReference[0] + 15.0 * Xyz.WhiteReference[1] + 3.0 * Xyz.WhiteReference[2];
var u1 = 4.0 * Xyz.WhiteReference[0] / referenceDenominator;
var v1 = 9.0 * Xyz.WhiteReference[1] / referenceDenominator;
var a = 1.0 / 3.0 * (52.0 * L / (U + 13.0 * L * u1) - 1.0);
var y = L > Xyz.Kappa * Xyz.Epsilon ? System.Math.Pow((L + 16.0) / 116.0, 3) : L / Xyz.Kappa;
var b = -5.0 * y;
var d = y * (39.0 * L / (V + 13.0 * L * v1) - 5.0);
var x = (d - b) / (a - -1.0 / 3.0);
var z = x * a + b;
var xyz = new Xyz
{
X = 100 * x,
Y = 100 * y,
Z = 100 * z
};
return xyz.ToColorSpace<Rgb>();
}
protected override Rgb ToRgb()
{
var y = (L + 16.0) / 116.0;
var x = A / 500.0 + y;
var z = y - B / 200.0;
var xCubed = System.Math.Pow(x, 3);
var zCubed = System.Math.Pow(z, 3);
var xyz = new Xyz
{
X = Xyz.WhiteReference[0] * (xCubed > Xyz.Epsilon ? xCubed : (x - 16.0 / 116.0) / 7.787),
Y = Xyz.WhiteReference[1] * (L > Xyz.Kappa * Xyz.Epsilon ? System.Math.Pow((L + 16.0) / 116.0, 3) : L / Xyz.Kappa),
Z = Xyz.WhiteReference[2] * (zCubed > Xyz.Epsilon ? zCubed : (z - 16.0 / 116.0) / 7.787)
};
return xyz.ToColorSpace<Rgb>();
}
protected override Rgb ToRgb()
{
var x = A / 17.5 * (L / 10.0);
var y = L / 10.0 * (L / 10.0);
var z = B / 7.0 * (L / 10.0);
var xyz = new Xyz
{
X = (x + y) / 1.02,
Y = y,
Z = -(z - y) / 0.847
};
return xyz.ToColorSpace<Rgb>();
}
