According to another aspect of the disclosure, modifications are temporally made to {TAIL ~ all frames} in {HEAD ~ a video stream}, selected frames in a video stream, or a single frame in a video stream 
According to another aspect of the disclosure , modifications are temporally made to { TAIL ~ all frames } in { HEAD ~ a video stream } , selected frames in a video stream , or a single frame in a video stream
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH