Grass Valley Kayenne XL Package v.7.0.4 - Manual (Page 195)

Kayenne XL Package — User Manual 193
Multi Function Control
Chroma Key Main Page
Figure 131. Multi Function Chroma Key Page
Strategy for Manual Chroma Key Setup
1. Turn Selectivity to minimum.
2. Set Clip Lo/Hi to “midrange values” (we recommend Clip Lo/Hi, but it
is also possible with Clip/Gain).
3. Set primary suppression with PriChr to max.
4. Set primary suppression with PriLum to min.
5. Turn primary suppression PriHue until the background (the key color)
becomes very noisily affected. Adjust for maximum.
6. Increase the Selectivity until the background is completely keyed off but
foreground stays unaffected.
7. Adjust PriChr and PriLum so that the background color and luminance
appears as in the original.
8. Adjust Clip Lo/Hi. Adjust Clip Lo to make the foreground opacity and
adjust Clip Hi to suppress noise/shadows in the background. To help
with this adjustment, turn on show key using the PVW button.
9. If necessary, start tweaking as after and Auto adjustment.