{HEAD ~ The image input} is stored in {TAIL ~ an image buffer} as an addressable array of sample values 
is stored in
{ HEAD ~ The image input } is stored in { TAIL ~ an image buffer } as an addressable array of sample values
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH