Ops 7–22 • Keying Vision Operator’s Manual (v12.0 MD)
Note — If the Width adjustment is set greater than Off, the Sensitivity is automatically set to
Low. The Sensitivity is set back to what it was before when Width is set back to Off.
•Use the Sensitivity knob on the UltraChrome Menu 1-2 to set the edge
sensitivity as follows:
› Low — Select this option to reduce the level of detail in the edges of the
chroma key. This option will reduce the overall noise in the key image that can
be the result of certain lighting conditions or high detail camera settings.This
is the default setting.
› High — Select this option to include the maximum detail in the edges of the
chroma key.
9. Adjust the luminance, or brightness, as follows:
• Press Luminance on the UltraChrome Menu 2-2. The luminance settings allow
you to adjust the overall brightness of the Shadow, Translucent, and Transition areas
to change the appearance of reflections from semi-transparent objects and to match
Shadow and Transition area brightness with the Foreground brightness.
Luminance — UltraChrome Menu 2-2
•Use the Reflections knob on the UltraChrome Menu 2-2 to change the
brightness of semi-transparent reflections (like reflections from glasses) as follows:
› Increasing the Reflections value increases the brightness of semi-transparent
reflections.
› Decreasing the Reflections value decreases the brightness of semi-transparent
reflections.
•Use the Bkgd Luma knob on the UltraChrome Menu 2-2 to change the overall
brightness of Shadow, Translucent, and Transition areas as follows:
› Increasing the Background Luminance value increases the brightness of
Background, Translucent, and Transition areas.
› Decreasing the Background Luminance value decreases the brightness of
Background, Translucent, and Transition areas.
This completes the procedure for adjusting an advanced UltraChrome chroma key.
UltraChrome Alpha and Color Map
Adjusting a chroma key can be difficult when looking at the actual video signals as some
adjustments have very subtle effect on the image. Using an Alpha or Color Map preview gives
you a visual representation of the various parts of your UltraChrome chroma key and makes for
easier adjustments. The Alpha and Color Map previews use the Preview output of the selected
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