public override ColorBgra Apply(ColorBgra color)
{
Vector3D vector2 = color.ToPoint3D() - Origin3D;
double alpha = (vector2 * AlphaVector) / AlphaVectorLength;
return(OutputColor.NewAlpha(Utility.ClampToByte(alpha * 255)));
}
public override ColorBgra Apply(ColorBgra color)
{
int deviance = color[Channel] - BackColor[Channel];
float scale = (float)deviance / Deviance;
byte alpha = Utility.ClampToByte(scale * 255);
return(OutputColor.NewAlpha(alpha));
}
public override ColorBgra Apply(ColorBgra color)
{
int distance = Utility.ColorDifference(BackColor, color);
float scale = (float)distance / Distance;
byte alpha = Utility.ClampToByte(scale * 255);
return(OutputColor.NewAlpha(alpha));
}
public override ColorBgra Apply(ColorBgra color)
{
float colorAverage = color.GetAverageColorChannelValueF();
float scale = (colorAverage - BackAverage) / (ForeAverage - BackAverage);
byte alpha = Utility.ClampToByte(scale * 255);
return(OutputColor.NewAlpha(alpha));
}