{HEAD ~ A counter} counts {TAIL ~ the number} of times a data image pattern is detected and generates a repeat count 
counts
{ HEAD ~ A counter } counts { TAIL ~ the number } of times a data image pattern is detected and generates a repeat count
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH