Panasonic AV-UHS500 12G-SDI/HDMI UHD 4K Compact Live Switcher - Manual (Page 39)

39
Basic operations
Key
This operation combines the background image with another
image. The key definition can be adjusted, and an edge can
be added to the combined image.
Key1, Key2, Key3, DSK1 (downstream key), and DSK2 are
available as materials to compose the background images.
The default settings for priority (image positioning) are as
shown in the figure below.
<Priority default settings>
Key1
Key2
Key3
DSK1
DSK2
Background image
You can change the prioritization for Key1, Key2, and Key3,
and the prioritization for DSK1 and DSK2.
 Refer to “Setting the priority”.
How key combinations work is shown in the figure below.
<How key composition works>
UHS500
UHS500
Background
Key source
Key fill
Output image
Invert
Selecting the key type
1 Press the KEY1
CKEY
button to light its indicator, and display
the Key menu.
2 Use [F1] to display the Key sub menu.
3 Use [F2] to select the Type item.
Lum
(luminance key/
self key) This is for creating the key signals from
the luminance component or luminance
and chroma component of the key fill
signal.
Linear
(linear key/
EXT key) This is for creating the key signals from
the luminance component of the key
source signal.
It is used when the key source signal and
key fill signal are different.
Chroma
(chroma key/
self key) This is for creating the key signals using
a specific hue of the key fill signal as the
reference.
Full
(full key/self key) This is for creating the key signals using
the images on the full screen as the key
source signals.
PinP combinations are possible in
conjunction with the flying key.
 See “Flying key”.
Since the luminance and chroma keys are operated as
self keys, the key fill signals are used as the key source
signals. For the full key, the images on the full screen
are used as the key source signals.
When the luminance key, chroma key or full key has
been selected as the key type, the key signals will
remain unchanged even when the key source signals
are switched.
When using the linear key, use material with a black
background and white characters or shape to be
combined by the key as the key source signal.
Material which is not black and white may not be
combined clearly.
Material with a white background and black characters,
etc. can be reversed using the key invert function for
use.