Audio Engineering

816 Chapter 28

clock face. Hue is the term used in image processing and television to describe a color’s
precise location on this locus. Saturation is the term used to describe the amount a pure
color is “ diluted ” by white light. The dotted axis shown in Figure 28.4(b) is the axis of
pure luminance. The more a particular shade moves towards this axis from a position on
the boundary of the cube, the more a color is said to be desaturated.

28.6 Color Television ....................................................................................................

From the discussions of the trichromatic response of the eye and of the persistence of vision,
it should be apparent that a color scene may be rendered by the quick successive presentation

Figure 28.4 : (a) Studio vectorscope display and (b) Color three space.

Red Magenta

V

u

Blue

Yellow

Green Cyan

(a)

Magenta

Blue

Green Cyan

Yellow

Red

White

Black

(b)