About external key – Roland V-800HD MKII Multi-Format Video Switcher User Manual

Page 38

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Compositing the Video

4.

Adjust the amount of keying.

While viewing the preview, turn the [LEVEL] dial in the KEY section to adjust the amount of keying.

* You can use the menus to change the degree of edge blur. At the Key menu, adjust [Gain]. Also, when you are using chroma key, you can use

[Hue] to adjust the extraction color.

fig.adjust-key-level.eps

5.

Output the composited results.

Use the [AUTO] or [CUT] button or the video fader to output the results of compositing. The color of the [ON] button changes to
red at this time.

6.

Make the overlaid picture disappear.

Pressing the [AUTO] or [CUT] button again or moving the video fader in the opposite direction makes the overlaid video
disappear. Making a second press of the [ON] button you pressed in step 3 also makes the overlaid picture disappear.

Combining Picture-in-Picture and luminance/chroma key lets you use the [SIZE] dial to enlarge or reduce the size of the overlaid picture. You can

also use the [POSITION] joystick to move the display position. When combining, press any of the [PinP] buttons to make it light up.

fig.key-PinP-sample.eps

About External Key

At the Key menu, selecting [Mode] and changing the setting to [External Key] lets you perform compositing using an external key
source.

* You can select either white or black as the extraction color. Go to [Type] of the Key menu to make the setting.

fig.ext-key-image.eps

The channel where the external key source is input must be set at the Key menu. Select the channel in [Key Source Channel]. The
procedure for compositing is the same as for luminance key or chroma key.

When you use external key, DSK cannot be used.

KEY only

KEY + PinP

Key Fill

Key Source

Key Source
Channel

PGM

PST/EFFECT

External Key

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