isists 
> age 27 
vas 
| lowed 
>rences 
lon. 
1 using 
RED 
sed as 
lagrams 
liffe- 
1lsion 
   
DENSITY 
  
suns rays 
direction 
of the 
cyanic 
Vg 
re A 
vieuw direction 
ploughed field 
      
  
jher 
o 
e 
EH YOAV 
  
  
   
    
        
| 
ant e 
In the 
4 rows of poplars 
dyke with à 
ation 
l 
| 
   
16 
|, 14 o4 
camera positions 
ont 
suns 
for the 
ire QA 
ow A 
à 
cher 
DENSITY RED 
3 
as oA 
sition 
colour variations due to camera position 
and background radiation 
AN MM NVYDr Oo 
in eocsomoeo 
ied 
21 ++ «The 
  
sg. 
lent.