RS 
Fig. 4. 1 Original grid structure map given for 
method test 
  
  
  
  
Fig. 4. 2 Dilated image of the map in Fig. 4. 1 by 
TMM 
Y 
  
1 L1 
j di 
d2 
P(x.) N 
x 2 
  
  
A 
  
Fig.5 L1, L2, L3: structure lines; d1, d2: 
distance to the nearest two structure lines 
(Lj, L2) 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
Fig. 6. 1 Binary grid map of reginal geological 
structures at Liangcheng 
  
  
    
   
      
0 7«I5«10 
0.0<I5<0.7 
0 Shan BE 
LK 
  
  
Fig. 6. 2 Coded geological structure information 
image of the map in Fig. 6. 1 by TMM (at 
a mining field in Liangcheng) 
468 
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1982