private static float CalculateVariance(ColorMoment[, , ,] moments, Box cube)
{
ColorMoment volume = Volume(cube, moments);
return(volume.Variance());
}
private static CubeCut Maximize(ColorMoment[, , ,] moments, Box cube, int direction, byte first, byte last, ColorMoment whole)
{
var bottom = Bottom(cube, direction, moments);
var result = 0.0f;
byte?cutPoint = null;
for (var position = first; position < last; ++position)
{
var half = bottom + Top(cube, direction, position, moments);
if (half.Weight == 0)
{
continue;
}
var temp = half.WeightedDistance();
half = whole - half;
if (half.Weight != 0)
{
temp += half.WeightedDistance();
if (temp > result)
{
result = temp;
cutPoint = position;
}
}
}
return(new CubeCut(cutPoint, result));
}