C2-7000 S
ERIES
O
PERATION
M
ANUAL
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‘abABZ’ will change to allow visualization of the layer stack. Note that layer 6
the Background Color is not shown as its layer position can not be altered – it
will always be the background.
8.6
Items Associated with the Adjust keyers group
Please note that not all units have this sub-menu – it is only present on units
with overlaying abilities.
Towards the end of this manual you will find a section titled ‘COMMON
OPERATIONS’ – this gives a step-by-step guide to keying out a particular
color.
This menu item turns keying On or Off for the current foreground. A keyed
image is in essence one image superimposed over another – such that
portions of the top image are made transparent (keyed out), so that the
background image can show through. The following settings allow you to vary
the colour(s) that are keyed out.
This menu item is only present on single-channel scalers – dual-channel
scalers have the layer priority set within the ‘Adjust Windows’ menu.
This menu item allows you to swap the foreground and background images
when Lock mode is set to Lock & Mix. It will have no effect in any other mode
(since no background is present).
Normally, your foreground is the input (window) source and your background
is the lock source. This then allows you to superimpose any graphics or video
input on top of the lock source by keying out a certain color or range of colors
in the input source. Swapping them means that the input source moves to the
background and the lock source is now in front of it. Thus you are now keying
out the lock source colors to reveal the input source behind it.
Note that this is different to simply swapping over the input and lock sources
as that would affect the final output resolution – see examples below:
Input
source
Lock
source
Swap Foreground
(keyed)
Background
(non-keyed)
Output
resolution
XGA
NTSC
Off
XGA
NTSC
NTSC
XGA
NTSC
On
NTSC
XGA
NTSC
NTSC
XGA
Off
NTSC
XGA
XGA
NTSC
XGA
On
XGA
NTSC
XGA
Adjust keyers
Swap fore/backgrnd [Off]
Adjust keyers
Keyer enable [Off]
Содержание C2-7000 Series
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