Page 167 - Computational Colour Science Using MATLAB

154 CHARACTERIZATION OF PRINTERS

Figure 9.5 Target and actual coverage areas with n ¼ 20 for red (upper panel), yellow (middle
panel) and green (lower panel) inks. Solid lines show the polynomial fits

For a binary mixture, the following code would be used:

c1 + polyval(p1, dig1);
c2 polyval(p2, dig2);

% get the areas using Dimechel
A1 = c1*(1-c2);
A2 = c2*(1-c1);
Aw = (1-c1)*(1-c2);
Ao = c1*c2;

for w = 1:31
pred(w) = (Ab*(solid1(w))^(1/n) + ...
At*(solid2(w))^(1/n) + ...
Ao*(overlap(w))^(1/n) + Aw*(W(w))^(1/n))^n;