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Key Acceptance is represented on the Main Palette as a sector or area covering a range of hues or colors that
closely match the background color to be keyed as set in Chroma Matte. The user can start with a value of 120
degrees and this value can be fine-tuned up or down using the Key Acceptance depending on the setup of the
green or blue screen studio.
Key Lift is represented on the Main Palette as a line extending from the center point in the direction of the Key
Acceptance sector. This value affects the performance of the Chroma key in dark or black areas. If the dark areas
of the video are becoming too transparent, then applying more Key Lift may help depending on the setup of the
green or blue screen studio. This value can be fine-tuned up or down using the Key Lift Function Dial.
Key Gain affects the performance of the Chroma key in light or white areas. If the light areas of the video are
becoming too transparent then applying more Key Gain may help depending on the setup of the green or
blue screen studio. This value can be fine-tuned up or down using the Key Gain Function Dial.
Color Spill
The Color Spill parameters and the values are shown along the bottom of the display below. These settings are
used to control/remove any unwanted Chroma Spill from the background onto the foreground. There are two
sectors drawn on the Chroma palette, one represents the wider Chroma Acceptance range and the other a
narrower Chroma Suppress range.
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