{HEAD ~ The second block portion} corresponding to {TAIL ~ the determined transformed block portion} is selected, and block position information indicating the position of the selected second block portion and a transformation parameter representing the transform processing of the selected second block portion are output 
corresponding to
{ HEAD ~ The second block portion } corresponding to { TAIL ~ the determined transformed block portion } is selected , and block position information indicating the position of the selected second block portion and a transformation parameter representing the transform processing of the selected second block portion are output
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL 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 OTH OTH OTH OTH OTH OTH