public static ColorLuv RGBtoLuv(int R, int G, int B)
{
double X, Y, Z, L, u, v, _u, _v;
double Yn = 1.0, xn = 0.312713, yn = 0.329016, Un, Vn; //D65
ColorXYZ xyz = RGBtoXYZ(R, G, B);
X = xyz.X;
Y = xyz.Y;
Z = xyz.Z;
if (X + 15 * Y + 3 * Z == 0)
{
return(new ColorLuv(0, 0, 0));
}
Un = 4 * xn / (-2 * xn + 12 * yn + 3);
Vn = 9 * yn / (-2 * xn + 12 * yn + 3);
_u = 4 * X / (X + 15 * Y + 3 * Z);
_v = 9 * Y / (X + 15 * Y + 3 * Z);
if (Y / Yn <= Math.Pow(6 / 29.0, 3))
{
L = Math.Pow(29 / 3.0, 3) * Y / Yn;
}
else
{
L = 116 * Math.Pow(Y / Yn, 1 / 3.0) - 16;
}
u = 13 * L * (_u - Un);
v = 13 * L * (_v - Vn);
return(new ColorLuv(L, u, v));
}
private void refreshAll(ColorXYZ color)
{
trackBarX.Value = X = Convert.ToInt32(color.X * 100.0);
trackBarY_.Value = Y_ = Convert.ToInt32(color.Y * 100.0);
trackBarZ.Value = Z = Convert.ToInt32(color.Z * 100.0);
ColorRGB rgb = Converter.XYZtoRGB(color.X, color.Y, color.Z); //!!!
R = trackBarR.Value = rgb.R;
G = trackBarG.Value = rgb.G;
B = trackBarB.Value = rgb.B;
ColorCMYK cmyk = Converter.RGBtoCMYK(R, G, B); //!!!!
trackBarC.Value = C = Convert.ToInt32(cmyk.C);
trackBarM.Value = M = Convert.ToInt32(cmyk.M);
trackBarY.Value = Y = Convert.ToInt32(cmyk.Y);
trackBarK.Value = K = Convert.ToInt32(cmyk.K);
ColorHLS hls = Converter.RGBtoHLS(R, G, B); //!!!!!
trackBarH.Value = H = hls.H;
trackBarL.Value = L = Convert.ToInt32(hls.L * 100.0);
trackBarS.Value = S = Convert.ToInt32(hls.S * 100.0);
ColorLuv luv = Converter.RGBtoLuv(R, G, B); //!!!!
trackBarL_.Value = L_ = Convert.ToInt32(luv.L);
trackBarU.Value = u = Convert.ToInt32(luv.u);
trackBarV.Value = v = Convert.ToInt32(luv.v);
numericUpDownR.Value = R;
numericUpDownG.Value = G;
numericUpDownB.Value = B;
numericUpDownH.Value = H;
numericUpDownL.Value = L;
numericUpDownS.Value = S;
numericUpDownC.Value = C;
numericUpDownM.Value = M;
numericUpDownY.Value = Y;
numericUpDownK.Value = K;
numericUpDownL_.Value = L_;
numericUpDownU.Value = u;
numericUpDownV.Value = v;
numericUpDownX.Value = X;
numericUpDownY_.Value = Y_;
numericUpDownZ.Value = Z;
if (colorCut)
{
label14.Visible = true;
if (cuttedComponents[0])
{
numericUpDownR.BackColor = Color.Red;
}
else
{
numericUpDownR.BackColor = Color.White;
}
if (cuttedComponents[1])
{
numericUpDownG.BackColor = Color.Red;
}
else
{
numericUpDownG.BackColor = Color.White;
}
if (cuttedComponents[2])
{
numericUpDownB.BackColor = Color.Red;
}
else
{
numericUpDownB.BackColor = Color.White;
}
colorCut = false;
}
else
{
label14.Visible = false;
numericUpDownR.BackColor = Color.White;
numericUpDownG.BackColor = Color.White;
numericUpDownB.BackColor = Color.White;
}
currentColor = Color.FromArgb(R, G, B);
panel1_Paint(null, null);
}
