A four-color CMYK printer has 16 usage basis colors for combinations of two states

(0% and 100% area coverages) whose measured spectral curves are shown in Table 7.6 at 10 nm interval between 400 and 700 nm. The relationship between weights of the Neugebauer primaries to the dot area coverages

(c, m, y, k) is modeled by Demichel dot model. Obtain the dot growth functions showing the relationship between the digital input C, M, Y, K and the corresponding dot area coverages c,m, y, k (0  c,m, y, k  1) for measured spectral samples shown in Table 7.7 using

a. The least square error minimization (Equation 7.60a)

b. The weighted least square error minimization (Equation 7.60b)