{HEAD ~ The digital image information} contained in each group is partitioned in units of a second predetermined value smaller than {TAIL ~ the first predetermined value} 
{ HEAD ~ The digital image information } contained in each group is partitioned in units of a second predetermined value smaller than { TAIL ~ the first predetermined value }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL