501
SECTION 6.4 Halftones
X * *
* * * *
* * * * * *
* * * * * * * *
* * * * * * * * * *
* * * * * * * * * *
* * * * * * * *
* * * * * *
* * * *
* *
Y
*
FIGURE 6.3 Angled halftone cell divided into two squares
Y X
X a a
a a a a
a a a a a a
a a a a a a a a
a a a a a a a a a a
Y
a a a a a a a a a a b b
a a a a a a a a b b b b
a a a a a a b b b b b b
a a a a b b b b b b b b
a a b b b b b b b b b
*
Y a b b b b b b b b b b
c c b b b b b b b b
X
c c c c b b b b b b
c c c c c c b b b b
c c c c c c c c b b
c c c c c c c c c b
*
c c c c c c c c c c
c c c c c c c c
c c c c c c
c c c c
c c
Y c
FIGURE 6.4 Halftone cell and two squares tiled across device space