The value of the elements in {HEAD ~ the resulting data array} indicate the brightness of their corresponding pixels in {TAIL ~ the image array} 51 
The value of the elements in { HEAD ~ the resulting data array } indicate the brightness of their corresponding pixels in { TAIL ~ the image array } 51
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH