Secondaries with the Pros - The Art and Technique of Digital Color Correction - page 257

Fig. 6.84 Sky with window and luma qualification is graded to darken and saturate the sky.
Fig. 6.85 From there,
Festa wants the soldier
front and center to stand
out more as the “hero.”
He qualifies the soldier's
face with a round window
( Figure 6.86 ) and a 3D key
(vector qualification) of the
skin tones ( Figure 6.85 )
and the rest of the image
is darkened slightly outside
the window, drawing the
eye to the center soldier.
Fig. 6.86 Initial qualification of the hero Marine with a round window. (The strange color artifacts are due
to capturing this image with an SLR shooting the video monitor, not the grade itself.)