Ross Synergy 100 MD, Operator'S Manual

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Synergy 100 MD Operator’s Manual (v7.2 MD-S100) Keying • 7–13
UltraChrome Chroma Keys
This section provides instructions for performing an UltraChrome™ Chroma Key on a Synergy 100
MD switcher. An UltraChrome Chroma Keyer is available in each keyer, and can be used in either
Key 1 or Key 2. A Chroma Key is one in which the hole is cut based on a color value (hue), rather
than on a luminance value or an alpha signal. The color is electronically removed and replaced with
background video from another image. You can UltraChrome on
any source selected on the Key Bus .
The following topics are discussed in this section:
• Choosing an UltraChrome Operating Mode
• Performing an UltraChrome Chroma Key in Basic Mode
• Performing an UltraChrome Chroma Key in Advanced Mode
• Chroma Key Lighting Tips
Choosing an UltraChrome Operating Mode
The UltraChrome Chroma Keyer operates in one of two modes: Basic or Advanced .
Basic Mode
Basic Mode allows you to define two areas of the image being keyed: a background and a foreground.
The background is the part of the image that will be removed, allowing any underlying image to show
through, while the foreground is any part of the image that will be kept. Basic Mode allows you to
modify the colors used to define the background and foreground as well as some control over
background “spill” onto your foreground subject and edge softness to help the foreground object
blend into any underlying video. Beginning users and those who have simple Chroma Key needs
should choose Basic Mode.
To create an UltraChrome Chroma Key in Basic Mode, proceed to the section “ Performing an
UltraChrome Chroma Key in Basic Mode ” on page 7-14.
Advanced Mode
Advanced Mode allows much more control over the Chroma Keying process. Background areas can
be defined as translucent areas and shadow areas, while transition areas are where the background and
foreground areas meet. Advanced users and those with more demanding Chroma Key needs may use
Advanced Mode. This mode allows you to control all aspects of the Chroma Keying process and gives
you the ability to fine-tune properties such as shadows and transparency.
To create an UltraChrome Chroma Key in Advanced Mode, proceed to the section “ Performing an
UltraChrome Chroma Key in Advanced Mode ” on page 7-19.
Note
You cannot perform an UltraChrome Chroma Key in the Downstream
Keyer Group .
Note It is not recommended to switch between Basic and Advanced Modes
during the creation or adjustment of a Chroma Key.