/// <summary>
/// Convert from HSL to RGB color space.
///
/// </summary>
/// <param name="hsl">Source color in <b>HSL</b> color space.</param><param name="rgb">Destination color in <b>RGB</b> color space.</param>
public static void ToRGB(HSL hsl, RGB rgb)
{
if (hsl.Saturation == 0.0)
{
rgb.Red = rgb.Green = rgb.Blue = (byte)(hsl.Luminance * byte.MaxValue);
}
else
{
var vH = hsl.Hue;
var v2 = hsl.Luminance < 0.5 ? hsl.Luminance * (1f + hsl.Saturation) : hsl.Luminance + hsl.Saturation - hsl.Luminance * hsl.Saturation;
var v1 = 2f * hsl.Luminance - v2;
rgb.Red = (byte)(byte.MaxValue * Hue2RGB(v1, v2, vH + 0.3333333f));
rgb.Green = (byte)(byte.MaxValue * Hue2RGB(v1, v2, vH));
rgb.Blue = (byte)(byte.MaxValue * Hue2RGB(v1, v2, vH - 0.3333333f));
}
rgb.Alpha = byte.MaxValue;
}
public HSLFilter(HSL minHSL, HSL maxHSL)
{
this.minHSL = minHSL;
this.maxHSL = maxHSL;
}
