protected static void ExpectedValuesForKnownColor(IColorSpace knownColor, IXyz expectedColor)
{
var target = knownColor.To<Xyz>();
Assert.IsTrue(CloseEnough(expectedColor.X,target.X),"(X)" + expectedColor.X + " != " + target.X);
Assert.IsTrue(CloseEnough(expectedColor.Y,target.Y),"(Y)" + expectedColor.Y + " != " + target.Y);
Assert.IsTrue(CloseEnough(expectedColor.Z,target.Z),"(Z)" + expectedColor.Z + " != " + target.Z);
}
protected static void ExpectedValuesForKnownColor(IColorSpace knownColor, IXyz expectedColor)
{
var target = knownColor.To <Xyz>();
Assert.AreEqual(expectedColor.X, target.X, 0.5, "(X)" + expectedColor.X + " != " + target.X);
Assert.AreEqual(expectedColor.Y, target.Y, 0.5, "(Y)" + expectedColor.Y + " != " + target.Y);
Assert.AreEqual(expectedColor.Z, target.Z, 0.5, "(Z)" + expectedColor.Z + " != " + target.Z);
}
internal const double Kappa = 903.3; // Intent is 24389/27
static XyzConverter()
{
WhiteReference = new Xyz
{
X = 95.047,
Y = 100.000,
Z = 108.883
};
}
internal static void ToColorSpace(IRgb color, IXyz item)
{
var r = PivotRgb(color.R / 255.0);
var g = PivotRgb(color.G / 255.0);
var b = PivotRgb(color.B / 255.0);
// Observer. = 2°, Illuminant = D65
item.X = r * 0.4124 + g * 0.3576 + b * 0.1805;
item.Y = r * 0.2126 + g * 0.7152 + b * 0.0722;
item.Z = r * 0.0193 + g * 0.1192 + b * 0.9505;
}
internal static IRgb ToColor(IXyz item)
{
// (Observer = 2°, Illuminant = D65)
var x = item.X / 100.0;
var y = item.Y / 100.0;
var z = item.Z / 100.0;
var r = x * 3.2406 + y * -1.5372 + z * -0.4986;
var g = x * -0.9689 + y * 1.8758 + z * 0.0415;
var b = x * 0.0557 + y * -0.2040 + z * 1.0570;
r = r > 0.0031308 ? 1.055 * Math.Pow(r, 1 / 2.4) - 0.055 : 12.92 * r;
g = g > 0.0031308 ? 1.055 * Math.Pow(g, 1 / 2.4) - 0.055 : 12.92 * g;
b = b > 0.0031308 ? 1.055 * Math.Pow(b, 1 / 2.4) - 0.055 : 12.92 * b;
return new Rgb
{
R = ToRgb(r),
G = ToRgb(g),
B = ToRgb(b)
};
}
private static double GetDenominator(IXyz xyz)
{
return xyz.X + 15.0 * xyz.Y + 3.0 * xyz.Z;
}
public XyzColor(IXyz xyz)
{
Ordinals = xyz.Ordinals;
}
public HunterLabColor(IXyz xyz)
{
Initialize(xyz.ToRgb());
}
public void Bar(IXyz xyz)
{
xyz.Foo();
}
