public void Update( )
{
int i, n = values.Length;
max = 0;
min = n;
total = 0;
// calculate min and max
for ( i = 0; i < n; i++ )
{
if ( values[i] != 0 )
{
// max
if ( i > max )
max = i;
// min
if ( i < min )
min = i;
total += values[i];
}
}
mean = Statistics.Mean( values );
stdDev = Statistics.StdDev( values, mean );
median = Statistics.Median( values );
}
} /// <summary>
/// Filter histogram's low values.
/// </summary>
///
/// <param name="histogram">Histogram to filter.</param>
///
private void FilterLowValues( Histogram histogram )
{
int[] values = histogram.Values;
int globalMax = 0;
// find global maximum value
for ( int k = 0; k < values.Length; k++ )
{
if ( values[k] > globalMax )
{
globalMax = values[k];
}
}
// filter values, which are below 10% of max
int filterLevel = (int) ( (double) globalMax / 10 );
// do filtering
for ( int k = 0; k < values.Length; k++ )
{
if ( values[k] <= filterLevel )
{
values[k] = 0;
}
}
histogram.Update( );
}