According to one aspect of the disclosure, {TAIL ~ modifications} are spatially made to an entire video frame, one or more selected regions of a video frame, or one or more individual pixels of {HEAD ~ a video frame} 
According to one aspect of the disclosure , { TAIL ~ modifications } are spatially made to an entire video frame , one or more selected regions of a video frame , or one or more individual pixels of { HEAD ~ a video frame }
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH 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 HEAD