Grass Valley Kayak HD v.6.9.3 - Manual (Page 110)

110 Kayak — User Manual
Section 3 — Control Panels
Key Invert
The Key Invert button reverses the sense of the key control signal. When Key
Invert is active (button lit) black areas of the key cut signal cause replace-
ment of the background, and the white key cut areas cause the background
to be retained.
Mask Delegation Buttons
Masks help clean up keys by defining picture areas that are prevented from
keying (inhibit mask) or are forced to key (force mask). Separate inhibit and
force masks may be set up for each keyer. Masks can be created by pattern
generators, or can be based on a video source that has been clip and gain
adjusted to create the mask control signal. Masks cannot be applied to
preset patterns.
The Inhibit Mask and Force Mask buttons delegate the keyer to control one of
these two mask types. Changes to the masking controls affect only the
selected mask type of the keyer delegated in the Keyers subpanel. A high
button tally indicates which mask is being controlled. If the other mask is
also active, its delegation button will low tally. Masking parameters are
controlled in the Keyer Mask Menu.
Key PVW
The Key PVW button is used for viewing the key control signal. This button
does not affect the output of the M/E. Pressing the button once shows on
the preview output the key signal in front of the background. Pressing the
button second time shows the key signal.
Freeze Fill Button
The Freeze Fill Button is used to freeze the selected fill signal as a full frame
freeze.
Freeze Key Button
The Freeze Key Button is used to freeze the selected key signal as a full frame
freeze.
DPM Button
The DPM button allows the routing of the keyer’s Digital Picture Manipu-
lator into the signal path of the keyer.