Digital Cinematography, 2nd Edition

566 Chapter 16

a high-contrast feature that has been upsam-

pled by a small percentage. The remapped

pixels have retained their original values, but

the result is a highly aliased, or jagged, edge.

The solution is to apply a more sophisti-

cated ltering algorithm to determine the

values of remapped pixels – one that takes

into account, in some fashion, the values of

neighboring pixels. When executing spatial

transformations,Nukelets you select from sev-

eral ltering algorithms. Note that the effects

of each lter shown represent the amount of

sampling that occurs across a ve pixel radius.

Figure 16.43 Magnified ...