/// <summary>
/// Perform blur.
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="z"></param>
/// <returns></returns>
public override double GetValue(double x, double y, double z)
{
// Bitshift the source module by 1 one so we can
// "divide" each pixel into 4 quadrants
var shifted = new BitShiftInput(this.Source0)
{
Amount = 1,
Left = false
};
var self = shifted.GetValue(x, y, z);
var values = new double[8]
{
self, // weighted average filter
self, // center gets a higher weight
self,
self,
shifted.GetValue(x, y, z + 1),
shifted.GetValue(x, y, z - 1),
shifted.GetValue(x + 1, y, z),
shifted.GetValue(x - 1, y, z),
};
return(values.Average());
}
public override double GetValue(double x, double y, double z)
{
// Bitshift the source module by 1 one so we can
// "divide" each pixel into 4 quadrants
var shifted = new BitShiftInput(this.Source0)
{
Amount = 1,
Left = false
};
var center = shifted.GetValue(x, y, z);
bool isRight = Math.Abs(x) % 2 != 0; // This is b/c C# doesn't modulo negatives correctly.
bool isTop = Math.Abs(z) % 2 != 0;
// If this is the top right, and above and to the right are different but match each other, time to smooth
if (isTop && isRight)
{
var top = shifted.GetValue(x, y, z + 1);
var right = shifted.GetValue(x + 1, y, z);
return(top != center && top == right ? top : center);
}
if (!isTop && isRight)
{
var bottom = shifted.GetValue(x, y, z - 1);
var right = shifted.GetValue(x + 1, y, z);
return(bottom != center && bottom == right ? bottom : center);
}
if (!isTop && !isRight)
{
var bottom = shifted.GetValue(x, y, z - 1);
var left = shifted.GetValue(x - 1, y, z);
return(bottom != center && bottom == left ? bottom : center);
}
if (isTop && !isRight)
{
var top = shifted.GetValue(x, y, z + 1);
var left = shifted.GetValue(x - 1, y, z);
return(top != center && top == left ? top : center);
}
// okay compiler, sure...
return(center);
}
