The features, for example, include colors, grey scale levels, cell shape, patterns within a cell or {HEAD ~ any grouping} discernable by an area array camera or {TAIL ~ similar device} 
discernable by
The features , for example , include colors , grey scale levels , cell shape , patterns within a cell or { HEAD ~ any grouping } discernable by an area array camera or { TAIL ~ similar device }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL