A computer implemented method for decoding {TAIL ~ a current region} of {HEAD ~ an encoded image}, comprising the steps of: 
A computer implemented method for decoding { TAIL ~ a current region } of { HEAD ~ an encoded image } , comprising the steps of :
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH