414 
Figure 5a. 
Example of black and white densitometer display 
output of M Quick-Look M image of island-open 
water areas uninterpretable using hand magnify 
ing lens or Zoom Transfer Scope. 
Figure 5b. 
Black and white reproduction of color enhanced, 
density sliced image 5a, after an attempt to 
maximize data discrimination in ambiguous area. 
Little or no improvement in delineation of 
island and open water has resulted from the use 
of this technique.