/// <summary>
/// Private method to calculate the average color of a given
/// Color[] array using the HSL color model to boost the
/// Saturation and the Luminosity of the color.
/// </summary>
/// <param name="pixels">The <see cref="Color"/> array of pixels to average.</param>
/// <returns>Returns a single <see cref="Color"/> object.</returns>
private Color AverageAmbuino(Color[] pixels)
{
// Calculate average RGB and convert to HSL
var hsl = new HSLColor(AverageRGB(pixels));
// Bump up the Saturation
// -(x-1)^2 + 1
hsl.Saturation = -Math.Pow(hsl.Saturation - 1, 2.0) + 1;
// Bump up the Luminosity (force to 0.5)
// 4 * (x-0.5)^3 + 0.5
hsl.Luminosity = 4.0 * Math.Pow(hsl.Luminosity - 0.5, 3.0) + 0.5;
return (Color)hsl;
}
private static double GetTemp2(HSLColor hslColor)
{
double temp2;
if (hslColor.luminosity < 0.5) //<=??
temp2 = hslColor.luminosity * (1.0 + hslColor.saturation);
else
temp2 = hslColor.luminosity + hslColor.saturation - (hslColor.luminosity * hslColor.saturation);
return temp2;
}