User Manual

Keying
Keying is the term used to describe when you insert (or
electronically cut) portions of one scene into another, or
place titles over background images. Keys are made up
of two basic components, an alpha, that cuts the hole in
the background video, and a ll, that lls the hole with
different video.
Keys are layered onto the background video signal from
the lowest numbered key to the highest.
Note: DashBoard Live Assist will not notify you of error
messages or if a confirmation is required. For example, if there
are no available resources for the DVE Key, or Chroma Key,
you are trying to create, the switcher will not create the key and
no notification will be shown.
Background
Key1
Key2
Key3
Key4
Figure 19: Key Priority
If you are using a MiniME
™
, key 1 only supports a DVE
key type, and key 2 only supports the Self Key, Auto
Select, and Chroma Key types. Key priority on a
MiniME
™
is the same as on an ME.
Understanding the Keying Menu
When you select a key type button (SELF KEY, AUTO
SELECT, CHR KEY, or DVE), the menu system
displays a number of options that allow you to adjust
how a the key appears. The options that are available
depend on the type of key that is selected.
The switcher supports Self, Auto Select, Chroma, and
DVE keys in each ME.
Table 2: Keying Menu Items
DescriptionMenu Item
removes lower-saturated colors from the video imageClip
adjusts the transition between video image, and the parts
of the video image that are removed
Gain
adjusts the overall transparency of the key videoTransp
sets the clip, gain, and transparency values for self keys
back to the default
Linear
reverses the polarity of the key alpha so that the holes in
the background are cut by dark areas of the key alpha
instead of bright areas
Invert
overrides the shaped setting for the keyMode
selects the type of mask that is applied to the key (Masks
on page 36)
Mask
DescriptionMenu Item
turns the force mask feature on or off (To Pattern Mask
a Key on page 36)
M-Frce
turns the invert mask feature on or off (To Pattern Mask
a Key on page 36)
M-Inv
adjusts the size of the mask or DVE keySize
selects the pattern for the pattern maskPattrn
selects the horizontal position of the mask or DVE keyX Pos
selects the vertical position of the mask or DVE keyY Pos
selects the aspect ratio for the mask pattern or DVE keyAspect
turns the border feature on and selects the size of the
border on the mask pattern or DVE key
Border
selects the amount of softness that is applied to the mask
or DVE key border
Soft
selects the color for the border from a pre-set listLoad
adjusts the hue of the border colorBHue
adjusts the saturation of the border colorBSat
adjusts the luminance of the border colorBLum
selects the rotation for the mask patternRot
multiplies the mask pattern horizontally (1-32)HMult
multiplies the mask pattern vertically (1-32)VMult
press to toggle between HCrop, Left/R, and L/RghtHCrop
• HCrop — adjusts the horizontal cropping of the DVE
key
• Left/R — adjusts the cropping of the left side of the
DVE key
• L/Rght — adjusts the cropping of the right side of
the DVE key
adjusts the vertical cropping of the DVE keyVCrop
• Top/B — adjusts the cropping of the top of the DVE
key
• T/Bttm — adjusts the cropping of the bottom of the
DVE key
press to toggle between Left/R and L/RghtLeft/R
• Left/R — adjusts the cropping of the left side of the
box mask
• L/Rght — adjusts the cropping of the right side of
the box mask
press to toggle between Top/B and T/BttmTop/B
• Top/B — adjusts the cropping of the top of the box
mask
• T/Bttm — adjusts the cropping of the bottom of the
box mask
Self Keys
A Self Key is a key in which the luminance, or
brightness, values of the key source are used as the alpha
for the key.
To Set up a Self Key
A self key is set up by selecting the keyer and video
source you want to use, and adjusting the key parameters.
Carbonite Black Solo Operation Manual (v1.2) — Keying • 29