public static CIEXYZColor FromRGB(RGBColor rgb, CIERGBDefinition primaries)
{
var mat = primaries.rgb2xyz;
var rgbvec = DenseVector.OfArray(new double[] { rgb.r, rgb.g, rgb.b });
var xyz = mat * rgbvec;
return(new CIEXYZColor(xyz[0], xyz[1], xyz[2]));
}
public RGBColor ToRGB(CIERGBDefinition primaries, bool limitGamut = true)
{
// NOTE: Assumes linear RGB, not sRGB.
var mat = primaries.xyz2rgb;
var rgb = mat * this;
if (limitGamut && (rgb.Maximum() > 1.0 || rgb.Minimum() < 0.0))
{
// Outside the gamut
return(new RGBColor(float.NaN, float.NaN, float.NaN));
}
else
{
return(new RGBColor((float)rgb[0], (float)rgb[1], (float)rgb[2]));
}
}