Analog Way PULSE2 (MIDRA) - Ref. PLS350 User Manual - Manual (Page 63)

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8.2.25 Special features
- Manual Setting:
Select Chroma Key menu > Manual Settings menu
• R,G,B: these controls allow you to manually select a hue, defined by its Red, Green, and Blue values as you
can find in Windows (Paint software).
• Tolerance: the Tolerance parameter allows you to expand your key color selection to include colors which
are similar to the selected value. A tolerance of 1 will select only the desired hue, whereas a tolerance of
255 will select nearly all hues.
• Black Level: this option permits adjustment of the luminance levels of the keyed hue. The Black Level is the
luminance lower bound. Colors in the selected hue range with a luminance brighter than the Black Level but
darker than the White Level will be considered part of the key.
• White Level: this option permits adjustment of the luminance levels of the keyed hue. The White Level is
the luminance lower bound. Colors in the selected hue range with a luminance brighter than the Black Level
but darker than the White Level will be considered part of the key.
• Titling alpha: if you have selected one of the two Titling mode, the titling menu appears. This option places
a transparent black backdrop behind the entire layer to which the key is applied. This effect is useful for
using bright titles on bright backgrounds, such as clouds.
• Invert keying: by default, this mode is disabled. When this mode is activated, the key selection will remain
on screen, and all other portions of the image will be keyed away. For example, you would see the green
screen behind the actor, while the actor would be keyed away.