public static Chromaticity1976uv Touv(this Color1931XYZ XYZ)
{
Chromaticity1976uv uv = default(Chromaticity1976uv);
FastXYZ2uv(XYZ.X, XYZ.Y, XYZ.Z, out uv.u, out uv.v);
return(uv);
}
public static Color1976Lab ToLab(this Color1931XYZ XYZ, Color1931XYZ whiteLab)
{
Color1976Lab Lab = default(Color1976Lab);
FastXYZ2Lab(XYZ.X, XYZ.Y, XYZ.Z, whiteLab.X, whiteLab.Y, whiteLab.Z, out Lab.L, out Lab.a, out Lab.b);
return(Lab);
}
public static Color1931XYZ ToXYZ(this Color1976Luv Luv, Chromaticity1976uv whiteLuv)
{
Color1931XYZ XYZ = default(Color1931XYZ);
FastLuv2XYZ(Luv.L, Luv.u, Luv.v, whiteLuv.u, whiteLuv.v, out XYZ.X, out XYZ.Y, out XYZ.Z);
return(XYZ);
}
public static Chromaticity1931xy Toxy(this Color1931XYZ XYZ)
{
Chromaticity1931xy xy = default(Chromaticity1931xy);
FastXYZ2xy(XYZ.X, XYZ.Y, XYZ.Z, out xy.x, out xy.y);
return(xy);
}
internal static ColorLMS ToLMS(this Color1931XYZ XYZ, ref ColorTransformMatrix XYZtoLMS)
{
ColorLMS LMS;
XYZtoLMS.Transform(XYZ.X, XYZ.Y, XYZ.Z, out LMS.L, out LMS.M, out LMS.S);
return(LMS);
}
public static Color1931XYZ ToXYZ(this Color1976Lab Lab, Color1931XYZ whiteLab)
{
Color1931XYZ XYZ = default(Color1931XYZ);
FastLab2XYZ(Lab.L, Lab.a, Lab.b, whiteLab.X, whiteLab.Y, whiteLab.Z, out XYZ.X, out XYZ.Y, out XYZ.Z);
return(XYZ);
}
public static Color1976Luv ToLuv(this Color1931XYZ XYZ, Color1931XYZ whiteLuv)
{
Color1976Luv Luv = default(Color1976Luv);
FastXYZ2Luv(XYZ.X, XYZ.Y, XYZ.Z, whiteLuv.X, whiteLuv.Y, whiteLuv.Z, out Luv.L, out Luv.u, out Luv.v);
return(Luv);
}
internal ColorRGB Transform(Color1931XYZ xyz)
{
ColorRGB rgb;
Transform(xyz.X, xyz.Y, xyz.Z, out rgb.R, out rgb.G, out rgb.B);
return(rgb);
}
public static ColorRGB ToRGB(this Color1931XYZ XYZ, ColorTransformMatrix XYZtoRGB)
{
ColorRGB RGB = default(ColorRGB);
XYZtoRGB.Transform(XYZ.X, XYZ.Y, XYZ.Z, out RGB.R, out RGB.G, out RGB.B);
return(RGB);
}
public static Color1931XYZ ToXYZ(this ColorRGB RGB, ColorTransformMatrix RGBtoXYZ)
{
Color1931XYZ XYZ = default(Color1931XYZ);
RGBtoXYZ.Transform(RGB.R, RGB.G, RGB.B, out XYZ.X, out XYZ.Y, out XYZ.Z);
return(XYZ);
}
public static Chromaticity1931xy Toxy(this Color1976Lab Lab, Color1931XYZ white)
{
Chromaticity1931xy xy = default(Chromaticity1931xy);
FastLab2XYZ(Lab.L, Lab.a, Lab.b, white.X, white.Y, white.Z, out float X, out float Y, out float Z);
FastXYZ2xy(X, Y, Z, out xy.x, out xy.y);
return(xy);
}
public static Color1931XYZ ToXYZ(this Color1931xyY xyY)
{
Color1931XYZ XYZ = default(Color1931XYZ);
XYZ.Y = xyY.Y;
FastxyY2XYZ(xyY.x, xyY.y, xyY.Y, out XYZ.X, out XYZ.Z);
return(XYZ);
}
public static Color1931xyY ToxyY(this Color1976Lab Lab, Color1931XYZ whiteLab)
{
Color1931xyY xyY = default(Color1931xyY);
FastLab2XYZ(Lab.L, Lab.a, Lab.b, whiteLab.X, whiteLab.Y, whiteLab.Z, out float X, out xyY.Y, out float Z);
FastXYZ2xy(X, xyY.Y, Z, out xyY.x, out xyY.y);
return(xyY);
}
public static Color1931xyY ToxyY(this Color1931XYZ XYZ)
{
Color1931xyY xyY = default(Color1931xyY);
xyY.Y = XYZ.Y;
FastXYZ2xy(XYZ.X, XYZ.Y, XYZ.Z, out xyY.x, out xyY.y);
return(xyY);
}
public static Chromaticity1976uv Touv(this Color1976Lab Lab, Color1931XYZ white)
{
Chromaticity1976uv uv = default(Chromaticity1976uv);
FastLab2XYZ(Lab.L, Lab.a, Lab.b, white.X, white.Y, white.Z, out float X, out float Y, out float Z);
FastXYZ2uv(X, Y, Z, out uv.u, out uv.v);
return(uv);
}
internal static void XYZtoDKL(Color1931XYZ stimulus, ColorLMS backgroundLMS, ref ColorTransformMatrix XYZtoLMS, ref ColorTransformMatrix LMStoDKL, out ColorDKL dkl)
{
ColorLMS stimulusLMS;
XYZtoLMS.Transform(stimulus.X, stimulus.Y, stimulus.Z, out stimulusLMS.L, out stimulusLMS.M, out stimulusLMS.S);
ColorLMS deltaLMS = stimulusLMS - backgroundLMS;
LMStoDKL.Transform(deltaLMS.L, deltaLMS.M, deltaLMS.S, out dkl.Isochromatic, out dkl.RGisoluminant, out dkl.Sisoluminant);
}
public static Color1931XYZ ToXYZ(int nm)
{
Color1931XYZ XYZ = default(Color1931XYZ);
if (nm < ColorMatchingFunctions.Cie1931XYZ.FirstNanometers || nm > ColorMatchingFunctions.Cie1931XYZ.LastNanometers)
{
return(XYZ);
}
ColorMatchingFunctions.Cie1931XYZ.GetValuesAt(nm, out XYZ.X, out XYZ.Y, out XYZ.Z);
return(XYZ);
}
public static ColorTransformMatrix GetRGBtoXYZ(Color1931XYZ xyz1, Color1931XYZ xyz2, Color1931XYZ xyz3, ColorRGB rgb1, ColorRGB rgb2, ColorRGB rgb3)
{
float a, b, c;
float d, e, f;
float g, h, i;
Solve(xyz1.X, xyz2.X, xyz3.X, rgb1, rgb2, rgb3, out a, out b, out c);
Solve(xyz1.Y, xyz2.Y, xyz3.Y, rgb1, rgb2, rgb3, out d, out e, out f);
Solve(xyz1.Z, xyz2.Z, xyz3.Z, rgb1, rgb2, rgb3, out g, out h, out i);
return(new ColorTransformMatrix(a, b, c, d, e, f, g, h, i));
}
public static ColorTransformMatrix GetRGBtoXYZ(Color1931XYZ red, Color1931XYZ green, Color1931XYZ blue, Color1931XYZ white)
{
ColorTransformMatrix XYZ = new ColorTransformMatrix(red, green, blue);
ColorTransformMatrix XYZinv = XYZ.Invert();
float Sr, Sg, Sb;
XYZinv.Transform(white.X, white.Y, white.Z, out Sr, out Sg, out Sb);
ColorTransformMatrix M = XYZ;
M.a *= Sr; M.b *= Sg; M.c *= Sb;
M.d *= Sr; M.e *= Sg; M.f *= Sb;
M.g *= Sr; M.h *= Sg; M.i *= Sb;
return(M);
}
public static Color1931XYZ ToXYZ(float[] spectrum, int nmFirst, int nmStep, ColorMatchingFunctions.XYZ matchingFunctions)
{
if (nmFirst < 0 || nmStep < 0)
{
throw new ArgumentOutOfRangeException();
}
Color1931XYZ XYZ = default(Color1931XYZ);
for (int i = 0, nm = nmFirst; i < spectrum.Length; i++, nm += nmStep)
{
float x̄, ȳ, z̄;
matchingFunctions.GetValuesAt(nm, out x̄, out ȳ, out z̄);
XYZ.X += x̄ * spectrum[i];
XYZ.Y += ȳ * spectrum[i];
XYZ.Z += z̄ * spectrum[i];
}
return(XYZ);
}
public static Color1931XYZ ToXYZ(this Color1976LCh LCh, Color1931XYZ whiteLab)
{
return(ToXYZ((Color1976Lab)LCh, whiteLab));
}
public static ColorRGB ToRGB(this Chromaticity1931xy xy, ColorTransformMatrix XYZtoRGB)
{
Color1931XYZ XYZ = ToXYZ(xy, 1f);
return(ToRGB(XYZ, XYZtoRGB));
}
public static ColorRGB ToRGB(this Color1976LCh LCh, ColorTransformMatrix XYZtoRGB, Color1931XYZ white)
{
return(ToRGB((Color1976Lab)LCh, XYZtoRGB, white));
}
public static Chromaticity1976uv Touv(int nm)
{
Color1931XYZ XYZ = ToXYZ(nm);
return(Touv(XYZ));
}
public static ColorRGB ToRGB(this Color1976Lab Lab, ColorTransformMatrix XYZtoRGB, Color1931XYZ white)
{
Color1931XYZ XYZ = ToXYZ(Lab, white);
return(ToRGB(XYZ, XYZtoRGB));
}
public static ColorRGB ToRGB(this Color1931xyY xyY, ColorTransformMatrix XYZtoRGB)
{
Color1931XYZ XYZ = ToXYZ(xyY);
return(ToRGB(XYZ, XYZtoRGB));
}
public static ColorRGB ToRGB(int nm, ColorTransformMatrix XYZtoRGB)
{
Color1931XYZ XYZ = ToXYZ(nm);
return(ToRGB(XYZ, XYZtoRGB));
}
public static Chromaticity1976uv Touv(this ColorHSV HSV, ColorTransformMatrix RGBtoXYZ)
{
Color1931XYZ XYZ = ToXYZ(HSV, RGBtoXYZ);
return(Touv(XYZ));
}
internal static void DKLtoXYZ(ColorDKL dkl, ColorLMS backgroundLMS, ref ColorTransformMatrix DKLtoLMS, ref ColorTransformMatrix LMStoXYZ, out Color1931XYZ xyz)
{
ColorLMS diffLMS;
DKLtoLMS.Transform(dkl.Isochromatic, dkl.RGisoluminant, dkl.Sisoluminant, out diffLMS.L, out diffLMS.M, out diffLMS.S);
ColorLMS stimulusLMS = diffLMS + backgroundLMS;
LMStoXYZ.Transform(stimulusLMS.L, stimulusLMS.M, stimulusLMS.S, out xyz.X, out xyz.Y, out xyz.Z);
}
public static Chromaticity1976uv Touv(this Color1976LCh LCh, Color1931XYZ white)
{
return(Touv((Color1976Lab)LCh, white));
}
