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226 Encore Presentation System • User’s Guide • Rev 04
5. Menu Orientation
Key Menu
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A Luma (luminance) key is one in which the hole-cutting information is derived from the
luminance (brightness) level of the key source.
The following
Key Menu functions are provided when Luma key is selected:
• Invert Mode — enables you to invert the key signal.
• Clip — adjusts the threshold of the video that “cuts” into the background image. A
hole will be cut into the background anywhere that foreground luminance is
greater than the clip level. The hole is then filled with the
Fill Source.
~ Adjustment range: 0 to 1023
• Gain — adjusts the sensitivity of the keyer, enabling you to change the sharpness
of the keyed image. Gain only affects the key hole, as set by the clip.
~ Adjustment range: 0 to 1023.99
• Opacity — enables you to adjust the opacity of the keyed image, from fully
opaque to fully transparent.
~ Adjustment range: 0 to 1024
• Fill Source — determines the video that fills the key hole:
~ Self — fills the hole with the key source video itself, for example, the
video from a character generator or logo.
~ Matte — fills the hole with a matte color, which can be adjusted with the
Matte Menu. See the “Matte Menu” section on page 228 for details.
• Press {STATS} to display the Status Menu. Refer to the “Status Menu” section
on page 212 for details.
• Press {CLONE} to display the Clone Setup Menu (if Clone is enabled). Refer to
the “
Clone Setup Menu” section on page 216 for details
• Press {EFX} to display the Image Effects Menu. Refer to the “Image Effects
Menu” section on page 220 for details.
• Press {MATTE} to display the Matte Menu. Refer to the “Matte Menu” section on
page 228 for details.
• Press {SIZE & POS} to display the Key Adjustment Menu. Refer to the “Key
Adjustment Menu” section on page 229 for details.
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A Color key is one in which the hole-cutting information is derived from a specific RGB
value — including luminance.
The following
Key Menu functions are provided when Color key is selected:
• Red Color — adjusts the red component of the selected key color, from 0 to 1024.
• Green Color — adjusts the green component of the key color, from 0 to 1024.
Note
Luma keys can be selected on both the Layer A and Layer B
keyers, in both
Split and Mix modes.
Note
Color keys can be selected on both the Layer A and Layer B
keyers, in both
Split and Mix modes.