private ImageUtility.float3 ComputeMean( ImageUtility.float3[] _Values )
{
ImageUtility.float3 AvgXYZ = new ImageUtility.float3( 0, 0, 0 );
for ( int i=0; i < _Values.Length; i++ )
AvgXYZ += _Values[i];
AvgXYZ = (1.0f / _Values.Length) * AvgXYZ;
return AvgXYZ;
}