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Compositing the Picture
Luminance key enables you to superimpose logos or text on a background picture. In this section, the RGB input from a computer
(channel 4) is composite over the video on channels 1 through 3.
fig.lumi-key-sample.eps
When using luminance key, you can specify either black or white as the extraction color. By default, black is extracted. You can
attractively composite a white logo or text on a black background, as shown in the figure above.
You can use the menus to change the extraction color to white. Go to the [VIDEO] menu, and at [KEY], set [LUMI KEY COLOR] to [WHITE]. Refer to
“Menu Operations” (p. 44) and “VIDEO Menu” (p. 45).
1. On the monitor, display the inputs from the sources.
At [MONITOR], press the [INPUT] button.
2. Select the key mode.
Go to [COMPOSITION] and press the [KEY] button to make it light up. [VIDEO SELECT] buttons [1] through [4] all simultaneously
flash green.
fig.key-mode.eps
3. Select the background.
Use the touch panel to choose the channel for the background. A red border appears around the selected channel.
4. Select the channel to display in the foreground.
Use [VIDEO SELECT] buttons [1] through [4] to choose the channel to display in the foreground. The indicator for the selected
channel lights up in green. Also, a green border appears around the selected channel on the touch panel.
* When inputting a logo or text from a computer using RGB, choose channel 4.
Compositing Using Luminance Key/Chroma Key
Compositing Using Luminance Key
Luminance Key
Black (or White)
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