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