AJA KONA 3G Installation And Operation Manual page 63

KONA 3G Installation and Operation Guide — Control Panel Operation
Graphic over Frame Buffer—places a graphics file having an alpha channel (chosen in
"Graphic File" pulldown) over the current contents of the KONA card's Frame Buffer (which
might be from storage, video In, KONA TV, etc.).
Matte Color: only available when the pulldown "Frame Buffer over Matte" or "Graphic over
Matte" are selected-pressing this button brings up a color selection dialog. The dialog
provides a variety of ways to select a matte color including a color wheel, color picker
(choose from a location anywhere on the computer screen), numeric sliders, swatches,
"crayons", and spectrums. The matte chosen will be used as a video background under the
keyed video.
Foreground pre-multiplied (checkbox): use to avoid "matte lines" and improve the
appearance of the foreground (key) being composited over the background.
Audio Out:
Frame Buffer—select audio out to be routed from the contents of the Frame Buffer.
Audio In—select audio out to be routed from KONA's currently selected input(s).
Opacity: this slider controls the transparency of the keyed video (over the background) from
translucent to completely opaque.
Graphic File: this pulldown allows you to choose from any recently accessed file or select a new
file ("Load File..."), which then brings up a file dialogue. Remember that the file raster (pixel
x pixel count) should match the primary format in the frame buffer or the secondary format
if upconverting. Example: you wish to key a logo on top of your 1920x1080 footage, the still
image with alpha channel that you load should be 1920x1080.
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