Sony MVS-7000X - Page 99

99
Key Adjustments (Menus)
Chapter 4 Keys
When setting [Window] on and adjusting the
detection range of the color cancel key
For details of the crop and angle parameters, see
“Chroma key window” (page 97).
When setting [Y Balance] on and adjusting the
ratio in which Y balance is added to the color cancel
key
Adjusting the window
Setting the window (see page 97) function on allows you
to adjust the detection range used to determine the key
signal. When this function is off, the default range is used
for the key.
After making sure that the values of Clip, Gain, and Hue
are adjusted appropriately, use the following procedure to
make the window adjustment.
1 In the Chroma Adjust menu, set [Window] on.
2 Adjust the following parameters.
Adjusting the Y balance
Setting the Y balance (see page 97) on allows you to
specify that, even if the hue is the same, only portions of a
particular luminance will be replaced by the background.
1 In the Chroma Adjust menu, set [Y Balance] on.
2 Adjust the following parameters.
Adjusting the chroma key shadow
This function allows a shadow falling on the (typically
blue) background color to be rendered more realistically.
Since portions of the (blue) background of less than a
certain luminance are treated as shadows, there is no effect
on cutting out of the foreground.
1 In the Chroma Adjust menu, set [Shadow] on.
2 Adjust the following parameters.
When chroma key shadow is on, key edge is changed to
normal, and soft edge is switched off.
Adjusting the video signal
You can change the gain of the foreground signal, or vary
the Hue. There are separate adjustments for the gain of the
whole video signal, or Y and C individually.
1 In the Chroma Adjust menu, set [FRGD CCR] on.
2 Adjust the following parameters.
2 Left Move left edge
of the color
cancel key
–3.00 to +3.00
3 Right Move right edge
of the color
cancel key
–3.00 to +3.00
Knob Parameter Adjustment Setting values
1 Crop Crop value 100.00 to 0.00
2 Angle Angle value 180.00 to 0.00
Knob Parameter Adjustment Setting values
1 Mixture Ratio of Y
balance key
0.00 to 100.00
Knob Parameter Adjustment Setting values
1 Crop Crop value 100.00 to 0.00
2 Angle Angle value 180.00 to 0.00
Knob Parameter Adjustment Setting values
1 Clip Luminance
range
0.00 to 100.00
Knob Parameter Adjustment Setting values
2 Gain Key gain –100.00 to
+100.00
3 Luminance Luminance 0.00 to 100.00
Knob Parameter Adjustment Setting values
1 Luminance Reference
luminance for
shadows
0.00 to 100.00
2 Gain Shadow key
gain
–100.00 to
+100.00
3 Density Shadow opacity 0.00 to 100.00
4 Soft Shadow
softness
0.00 to 100.00
Notes
Knob Parameter Adjustment Setting values
1 Video
Gain
Overall gain of
video signal
–100.00 to
+100.00
2 Y Gain Y signal gain –100.00 to
+100.00
3 C Gain C signal gain –100.00 to
+100.00
4 Hue Hue offset
amount
–180.00 to
+180.00
Knob Parameter Adjustment Setting values