public ColorCmyk(double c, double m, double y, double k)
{
ColorCmyk.check_cmyk(c, m, y, k);
this._alpha = 1.0;
this._c = c;
this._m = m;
this._y = y;
this._k = k;
}
public ColorRgb(ColorCmyk cmyk)
{
double CMY_C = cmyk.C * (1 - cmyk.K) + cmyk.K;
double CMY_M = cmyk.M * (1 - cmyk.K) + cmyk.K;
double CMY_Y = cmyk.Y * (1 - cmyk.K) + cmyk.K;
this._alpha = cmyk.Alpha;
this._r = 1 - CMY_C;
this._g = 1 - CMY_M;
this._b = 1 - CMY_Y;
}