providing an image comprised of rows and {TAIL ~ columns} of {HEAD ~ pixels}, each pixel associated with a respective pixel value 
providing an image comprised of rows and { TAIL ~ columns } of { HEAD ~ pixels } , each pixel associated with a respective pixel value
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH