/// <summary>
/// Adds a range to the hue filter that could cause pixels whose hue it covers to be replaced if their respective values are also covered by the saturation and vibrance filters.
/// </summary>
/// <param name="minHue">The minimum hue to be considered for this condition. Values greater than or equal to 1 will be divided by 360.</param>
/// <param name="maxHue">The maximum hue to be considered for this condition. Values greater than 1 will be divided by 360.</param>
public void AddHueRange(float minHue, float maxHue)
{
float newFilterMinValue = minHue < 1f ? minHue : minHue / 360f;
float newFilterMaxValue = maxHue < 1f ? maxHue : maxHue / 360f;
HueValueRanges.Add(new ColorValueRange(newFilterMinValue, newFilterMaxValue));
}
public Color FilterColor(Color color)
{
float hue;
float saturation;
float vibrance;
float alpha = color.a;
Color.RGBToHSV(color, out hue, out saturation, out vibrance);
if (HueValueRanges.TrueForAll(valueRange => valueRange.Covers(hue)) &&
SaturationValueRanges.TrueForAll(valueRange => valueRange.Covers(saturation)) &&
VibranceValueRanges.TrueForAll(valueRange => valueRange.Covers(vibrance)) &&
AlphaValueRanges.TrueForAll(valueRange => valueRange.Covers(alpha)))
{
float newHue = replacementHue >= 0f ? replacementHue : hue;
float newSaturation = replacementSaturation >= 0f ? replacementSaturation : saturation;
float newVibrance = replacementVibrance >= 0f ? replacementVibrance : vibrance;
float newAplha = replacementAlpha >= 0f ? replacementAlpha : alpha;
return(Color
.HSVToRGB(newHue, newSaturation, newVibrance)
.WithAlpha(newAplha));
}
return(color);
}
