Grass Valley Kayenne K-Frame v.7.0 - Manual (Page 91)

KAYENNE K-FRAME — User Manual 91
Generating Background Mattes
4. Decrease secondary Chroma suppression for the best match between
corrupted (translucent) and uncorrupted (opaque) areas. Interaction
between secondary suppression Angle and Chroma suppression may
require repeating these adjustments.
5. Increase secondary Luma suppression to balance lightness of the
translucent and opaque areas.
6. Repeat secondary suppression Angle, Chroma suppression and Luma
suppression for best results.
Generating Background Mattes
Background matte generators create colors and washes. These can be used,
for example, as the backgrounds for keys.
Background mattes cannot use the wipe pattern generators available to
keyer and wipe mattes, and cannot use Utility video as a wipe source.
Instead background mattes employ a simple dedicated wipe generator that
creates a single, straight line.
Background matte control is available from the Control Panel (Multi-Func-
tion area,
Matt button in the Home menu) and from the Keyer, Matte menu,
which provides additional background parameter controls.
1. Go to the Mattes menu by pressing Keyer , Mattes .
2. Touch the BKGD button.
3. If not already selected, touch the Base Color data pad of the desired
Background (1 or 2). Use the top three soft knobs to adjust Base Hue ,
Base Saturation , and Base Brightness of the base fill color ( Figure 47 ).