public static (double hue, double saturation, double intensity, double alpha) RGBAFColorToHSIAColor1(double red, double green, double blue, double alpha)
{
(double hue, double saturation, double intensity, double alpha)color = (0d, 0d, 0d, alpha);
var m = Min3DoubleTests.Min(red, green, blue);
var M = Max3Double.Max(red, green, blue);
var c = M - m;
if (ValidateRGBAFloatTests.ValidateRGBAF(red, green, blue, alpha) == true)
{
color.intensity = 1d / 3d * (red + green + blue);
if (c == 0)
{
color.hue = 0d;
color.saturation = 0d;
}
else
{
if (M == red)
{
color.hue = IEEERemainder((green - blue) / c, 6d);
}
else if (M == green)
{
color.hue = ((blue - red) / c) + 2d;
}
else if (M == blue)
{
color.hue = ((red - green) / c) + 4d;
}
color.hue *= 60d;
color.saturation = 1d - (m / color.intensity);
}
}
return(color);
}
public static (double hue, double saturation, double value, double alpha) RGBAFColorToHSVAColor1(double red, double green, double blue, double alpha)
{
(double hue, double saturation, double value, double alpha)color = (0d, 0d, 0d, alpha);
if (ValidateRGBAFloatTests.ValidateRGBAF(red, green, blue, alpha) == true)
{
var M = Max3Double.Max(red, green, blue);
var m = Min3DoubleTests.Min(red, green, blue);
var c = M - m;
color.value = M;
if (c != 0d)
{
if (M == red)
{
color.hue = IEEERemainder((green - blue) / c, 6d);
}
else if (M == green)
{
color.hue = ((blue - red) / c) + 2d;
}
else /*if(M==b)*/
{
color.hue = ((red - green) / c) + 4d;
}
color.hue *= 60d;
color.saturation = c / color.value;
}
}
return(color);
}
public static (double hue, double saturation, double value, double alpha) RGBAColorToHSVAColor1(byte red, byte green, byte blue, byte alpha)
{
var max = Max3Double.Max(red, green, blue);
var min = Min3DoubleTests.Min(red, green, blue);
var hue = GetHueFromRGBByteTests.GetHue(red, green, blue);
var saturation = (max == 0) ? 0 : 1d - (1d * min / max);
var value = max / 255d;
return(hue, saturation, value, alpha / 255d);
}