public override ColorBgra Apply(ColorBgra color)
{
//adjust saturation
byte intensity = color.GetIntensityByte();
color.R = PixelUtils.ClampToByte((intensity * 1024 + (color.R - intensity) * satFactor) >> 10);
color.G = PixelUtils.ClampToByte((intensity * 1024 + (color.G - intensity) * satFactor) >> 10);
color.B = PixelUtils.ClampToByte((intensity * 1024 + (color.B - intensity) * satFactor) >> 10);
HsvColor hsvColor = HsvColor.FromColor(color.ToColor());
int hue = hsvColor.Hue;
hue += hueDelta;
while (hue < 0)
{
hue += 360;
}
while (hue > 360)
{
hue -= 360;
}
hsvColor.Hue = hue;
ColorBgra newColor = ColorBgra.FromColor(hsvColor.ToColor());
newColor = blendOp.Apply(newColor);
newColor.A = color.A;
return(newColor);
}
public Level()
: this(ColorBgra.FromColor(Color.Black),
ColorBgra.FromColor(Color.White),
new float[] { 1, 1, 1 },
ColorBgra.FromColor(Color.Black),
ColorBgra.FromColor(Color.White))
{
}
public static Level AutoFromLoMdHi(ColorBgra lo, ColorBgra md, ColorBgra hi)
{
float[] gamma = new float[3];
for (int i = 0; i < 3; i++)
{
if (lo[i] < md[i] && md[i] < hi[i])
{
gamma[i] = (float)PixelUtils.Clamp(Math.Log(0.5, (float)(md[i] - lo[i]) / (float)(hi[i] - lo[i])), 0.1, 10.0);
}
else
{
gamma[i] = 1.0f;
}
}
return(new Level(lo, hi, gamma, ColorBgra.FromColor(Color.Black), ColorBgra.FromColor(Color.White)));
}