{TAIL ~ an image data obtaining unit} that obtains image data including pixel data corresponding to a plurality of {HEAD ~ pixels} forming the image 
{ TAIL ~ an image data obtaining unit } that obtains image data including pixel data corresponding to a plurality of { HEAD ~ pixels } forming the image
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH