The border is preferably set up in a known array of cells to provide the code reading software with an example of each feature to recalibrate the software algorithm so that the correct data will be {TAIL ~ output} for each feature in {HEAD ~ the matrix} 
The border is preferably set up in a known array of cells to provide the code reading software with an example of each feature to recalibrate the software algorithm so that the correct data will be { TAIL ~ output } for each feature in { HEAD ~ the matrix }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD