Three-Dimensional Control of Color Management Systems - Control of Color Imaging Systems: Analysis and Design - page 370

Corn e rs = 0 0 0 255

Cor n ers = 0 0 0 255

250 250

C -filt
C -unfilt

Y -filt
Y -unfilt

200 200

150 150

100 100

50 50

0 0

0 20 40 60 80 100 0 20 40 60 80 100

From 0 to gamut corner From 0 to gamut corner

Cor n e rs = 0 0 0 255

Cor n ers = 0 0 0 255

250

250

K -filt
K -ref
K -unfilt

M -filt
M -unfilt

200

200

150

150

100

100

50 50

0 0

0 20 40 60 80 100 0 20 40 60 80 100

(a) (b)

From 0 to gamut corner From 0 to gamut corner

FIGURE 7.44 Inversion response curves for K-restricted GCR (without preconditioning steps). (a) C and M response toward dark black corner ( ' 0 ' on the
x-axis corresponds to white (C ¼ M ¼ Y ¼ K ¼ 0)).

(b) Y and K response toward black corner ( ' 0 ' on the x-axis corresponds to white

(C ¼ M ¼ Y ¼ K ¼ 0)).

(continued )