PIXEL 
PIXEL 
NEIGHBORHOOD 
CONNECTIVITY 
MAP 
NEIGHBORHOOD 
CONNECTIVITY 
MAP 
000 
XXI 
Oil 
XX100001 
110 
= 
0001XX10 
1XX 
000 
000 
1X1 
010 
1X100000 
010 
= 
00001X10 
1X1 
000 
000 
X10 
Oil 
X1000001 
110 
= 
0001X100 
01X 
000 
000 
Oil 
010 
01100000 
010 
= 
00000110 
110 
000 
000 
110 
010 
11000000 
010 
= 
00001100 
Oil 
000 
000 
100 
Oil 
10000001 
110 
= 
00001100 
001 
000 
External Contour Maxima Templates 
External Contour Minima Templates 
PIXEL 
PIXEL 
NEIGHBORHOOD 
CONNECTIVITY 
MAP 
NEIGHBORHOOD 
CONNECTIVITY 
MAP 
000 
001 
010 
00100000 
010 
= 
00000010 
100 
000 
000 
010 
010 
01000000 
010 
= 
00000100 
010 
000 
000 
100 
010 
10000000 
010 
= 
00001000 
001 
000 
000 
000 
Oil 
00000001 
110 
= 
00010000 
000 
000 
Arc Endpoint Maxima Templates (a) Arc Endpoint Minima Templates (b) 
PIXEL 
NEIGHBORHOOD 
CONNECTIVITY 
MAP 
TYPE 
XXX 
Xll 
100 
001XXXX1 
MAX 
XXX 
XIX 
101 
101XXXXX 
MAX 
KEY: 0 = 
1 = 
BACKGROUND 
OBJECT 
X = 
DON'T CARE 
001 
11X 
XXX 
XXX1001X 
MIN 
101 
XIX 
XXX 
XXXX101X 
MIN 
Templates for Detecting Min and Max Points In 
Object-Background (Holes) Transitions (c) 
Table 1. 
479