throws IOException
throws Exception
    public void xtestSpeedCompareOnceThrough() throws IOException    {        final Stats stats = new Stats();        for (Iterator it = images.values().iterator(); it.hasNext();)        {            Image i = (Image) it.next();            i.eachPlane(new PlaneCallback()            {                void each(Image i, int z, int c, int t, int counter)                        throws IOException                {                    compare(stats,i,z,c,t);                }            });        }        log.info(stats);    }