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FIG. 7 
The solution of the system 
formed by difference and 
ratio on the radiance plane. 
Vector movement in the 
radiances plane due 
respectively to T and 
charges. 
FIG. 6 
COLOR 
IMAGE 
DISCRIMINATION 
LIGHT 
TV CAMERA A/D CONVERTER 
FILTERS : 
BLU 
GREEN 
RED 
Block diagram of 
a TV interface 
for a first pattern 
recognition on 
the basis of 
colour images. 
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