public static CieXyzColor ToCieXyz(this LinearRgbColor source)
{
Vector4 rgb = new Vector4((float)source.R, (float)source.G, (float)source.B, 1.0f);
Vector4 xyz = Vector4.Transform(rgb, linearRgbToCieTransform);
return(new CieXyzColor
{
X = xyz.X,
Y = xyz.Y,
Z = xyz.Z
});
}
public static StandardRgbColor ToStandardRgb(this LinearRgbColor source)
{
return(new StandardRgbColor
{
R = (byte)Math.Max(0, Math.Min(255, Math.Round(convertLinearToGamma(source.R) * 255))),
G = (byte)Math.Max(0, Math.Min(255, Math.Round(convertLinearToGamma(source.G) * 255))),
B = (byte)Math.Max(0, Math.Min(255, Math.Round(convertLinearToGamma(source.B) * 255)))
});
double convertLinearToGamma(double u)
{
return(u <= 0.003308 ? u * 12.92 : 1.055 * Math.Pow(u, 5.0 / 12.0) - 0.055);
}
}
public static CieLuvColor ToCieLuv(this LinearRgbColor source)
{
return(source.ToCieXyz().ToCieLuv());
}