Table 6.

The normalized SAD matrix, which contains the normalized SAD of each symbol from each other.

	Symbol	Rectangle	‘L’	‘T’	Triangle	‘X’	‘Π’
Symbol
Rectangle		0	1.31	1.31	0.97	1.11	1.17
‘L’		1.31	0	1.50	0.89	1.17	0.93
‘T’		1.31	1.50	0	0.98	1.03	1.06
Triangle		0.97	0.89	0.98	0	0.73	1.47
‘X’		1.11	1.17	1.03	0.73	0	1.29
‘Π’		1.17	0.93	1.06	1.47	1.29	0