/// <summary>
/// Query the image mean for a data source.
/// </summary>
/// <param name="nSrcId">Specifies the ID of the data source to use.</param>
/// <returns>The SimpleDatum containing the image mean is returned.</returns>
public SimpleDatum QueryImageMean(int nSrcId)
{
if (m_TestingImages.SourceID != nSrcId &&
m_TrainingImages.SourceID != nSrcId)
{
return(null);
}
return(m_factory.QueryImageMean(nSrcId));
}