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