Implementations may relate to {HEAD ~ various aspects} of modifying, or using, {TAIL ~ a coded bitstream}, or to recovering watermarking information from data 
Implementations may relate to { HEAD ~ various aspects } of modifying , or using , { TAIL ~ a coded bitstream } , or to recovering watermarking information from data
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH