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381Key Setting Operations Using Menus
Chapter 4 Keys
To invert the black and white sense of the key source: Press [Key
Invert], turning it on.
To adjust the horizontal position or key source width for a luminance
key, linear key, or chroma key: Press [Key Position], turning it on,
and set the parameters.
To set the key priority: Press [Key Priority] or select VF7 ‘Misc’ and
HF3 ‘Key Priority’ to access the Key Priority menu.
For details, see “Setting the Key Priority by a Menu Operation” (page
345).
Chroma Key Composition
Composing an image by chroma keying
There are two types of composition for chroma keying: normal mix, and
additive mix.
For an overview of the chroma key composition, see page 49.
1
In the M/E-1 >Key1 menu, select HF1 ‘Type.’
2
Select [Chroma] in the <Key Type> group.
It becomes possible to adjust the key density (see page 380).
3
Select [Chroma Adjust].
The Chroma Adjust menu appears.
4
Carry out auto chroma key adjustments.
Also carry out manual adjustments if necessary to obtain an optimum
chroma key image.
For the adjustment procedures, see page 382.
5
In the <Mix Mode> group, select [Normal Mix] or [Additive Mix]
depending on the desired type of chroma key composition.
Knob Parameter Adjustment Setting values
1 H Phase Key horizontal position –4.00 to +4.00
2 Left Key left edge position –4.00 to +4.00
3 Right Key right edge position –4.00 to +4.00