0,^ H ^ __ u ^ 
h. t, j~ X 
(5 ) 
150 
By use of that formula you can form a nomogram 
(picture 3) for determination of spectral images 
central area size for which the operation of 
rectification can be excluded in the process of 
preparation of colour composite photomosasics on the 
compositing devices. 
For the points of the images which have the 
elevation h within 400—600 m, the radius of the 
central area makes from 20% to 60 % of the total area 
of spectral images allowing for n index. 
The technology of the preparation of colour 
composite photomosaics on the compositing devices 
PC-4 and CPM—i is similar to the technology of 
producing scaled photomosaics but the only difference 
is that in this case there will be used the bases 
with control points and the photomosaic will be made 
by these points on a firm basis and then its accuracy 
will be evaluated. 
Picture 3. The nomogram for calculation of 
images central areas for which the rectification is 
not required.