Grass Valley Zodiak v.6.0 Mar 15 2006 - Manual (Page 323)

Zodiak — User Manual 323
M/E Menus
The Modulation Gain and Modulation Clip operate similar to standard Clip and
Gain controls. Modulation Gain affects how far the hue will shift with a
black to white luminance change. Modulation Clip and Hue Offset interact
to control the starting and ending hues (black and white hues).
Note Incoming levels above clip hi and below clip low will not affect the output
color, making large areas of the screen a fixed color. These controls should
remain set to defaults unless the operator wants to restrict the range of
incoming luminance levels that affect the output.
Hue Rotation
Figure 226. PseudoColor – Hue Rotation Controls
Hue Rotation is turned on and off only from this menu, using the ON
button.
The Hue Rotation control adjusts the hue angle in degrees ranging from -179
to +180. Clockwise rotation of the soft knob decreases the value. This soft
knob control also appears on the Proc Amp menu, but is only active in
either location when Hue Rotation is turned on from this menu. Though
Hue Rotation is conceptually a Proc Amp control, the Zodiak system actu-
ally uses Pseudocolor circuitry to perform Hue Rotation. The Pseudocolor
Hue Rotation circuitry must be turned on before the feature can be used in
either menu.