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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.
