/// <summary>
/// Returns the correction mask.
/// </summary>
/// <param name="a">Factor (0, 1]</param>
/// <param name="b">Offset (0, 1]</param>
/// <param name="length">Length</param>
/// <returns>Matrix</returns>
public static float[,] LocalContrastInversion(float a, float b, int length)
{
float[,] table = new float[length, length];
float w, v;
int x, y;
for (x = 0; x < length; x++)
{
w = x / (float)length;
for (y = 0; y < length; y++)
{
v = y / (float)length;
table[x, y] = Intensity.LocalContrastInversion(w, v, a, b);
}
}
return(table);
}
/// <summary>
/// Implements filter rebuilding.
/// </summary>
protected override void Rebuild()
{
this.values = Intensity.LocalContrastInversion(this.a, this.b, 256);
}