Sony MVS-7000X - Page 98

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Key Adjustments (Menus)
Chapter 4 Keys
1 In the M/E-1 >Key1 menu, select HF1 ‘Type,’ then
select [Chroma] in the <Key Type> group.
2 Select [Chroma Adjust].
The Chroma Adjust menu appears.
3 Select [Sample Mark] in the <Auto> group.
The foreground video only appears on the monitor,
with a white box-shaped sample selector.
4 Adjust the position and size of the sample selector, to
specify the color to be used as the basis of chroma
keying (typically a blue background).
a) The setting ranges depend on the signal format, screen aspect ratio,
and size settings.
5 Select [Auto Start] in the <Auto> group.
This executes an auto chroma key based on the color
specified by the sample selector, and displays the
composite image on the monitor.
Making key active adjustments
When the key active function is on, the composite image is
output to the monitor, and you can watch the monitor while
manually adjusting the keying.
When the key active function is off, only the foreground
image appears. Set this off when manually adjusting color
cancel (see the next section).
1 In the Chroma Adjust menu, set [Key Active] on.
2 Adjust the following parameters.
Making color cancel adjustments
If the background color is leaking into the foreground
video, turning the color cancel function on allows you to
eliminate this leakage.
1 In the Chroma Adjust menu, turn [Key Active] off.
Only the foreground image appears on the monitor.
2 In the <Color Cancel> group, set [Color Cancel] on.
3 Adjust the following parameters.
4 Set [Key Active] on.
The chroma key composite image now appears in the
monitor.
Making key signal adjustments for color
cancel
When the color cancel function is set on, you can adjust the
key signal for color cancel.
1 In the <Color Cancel> group of the Chroma Adjust
menu, set [Color Cancel] on.
2 In the <Color Cancel> group, set [Cancel Key] on.
The cancel key is now on, and you can now adjust the
key signal for color cancel.
3 Make the following settings, as required, in the <Color
Cancel> group.
When setting [Key Position] on and adjusting the
color cancel key edge position
Knob Parameter Adjustment Setting values
1 Position H Horizontal
position
–100.00 to
+100.00
a)
2 Position V Vertical position –100.00 to
+100.00
a)
3 Size Size 1.00 to 100.00
Knob Parameter Adjustment Setting values
1 Clip Chroma key
reference level
0.00 to 100.00
2 Gain Key gain –100.00 to
+100.00
3 Hue Hue 359.99 to 0.00
4 Density Density 0.00 to 100.00
5 Filter Filter coefficient 1 to 9
Knob Parameter Adjustment Setting values
1 Luminance Luminance 0.00 to 100.00
2 Saturation Saturation 0.00 to 100.00
3 Hue Hue 359.99 to 0.00
5 Filter Filter coefficient 1 to 9
Knob Parameter Adjustment Setting values
1 Clip Color cancel key
reference level
0.00 to 100.00
2 Gain Color cancel key
gain
–100.00 to
+100.00
Knob Parameter Adjustment Setting values
1 H Phase Move left and
right edges of
the color cancel
key
simultaneously
Left edge
position value
shown