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Using Chroma Keying
Basic operation for chroma keying
Press the AUTO TRANS button or CUT button once more, or operate of the
transition lever in the opposite direction, to remove the combined video
effect.
The "KEY" indicator on the operation screen also turns off.
Each press of the AUTO TRANS button or CUT button or operation of the
transition level alternately inserts or removes the video effect.
Two video images are combined by removing portions of video signal B that
include a particular color (chroma) and superimposing that image onto video A.
Typically, a subject is captured in front of a blue background (called a "blue
screen"). Any portion of the background containing blue is then removed, and
only the subject is combined with the background video (A).
You can set the chroma key by automatically specifying a color from the key
image with the cursor or by manually specifying each color setting. Manual
specification of settings is possible after performing automatic specification as
well.
A
Background
Notes
• Pressing the KEY button switches to key mode (the KEY button, NEXT
selection buttons, MIX button or EFFECT button light green, and the AUTO
TRANS button, CUT button, and transition lever now apply a keying
operation).
• You can also register graphics files to the numeric buttons on the front panel
and access them whenever necessary. For details, see "Accessing Graphics
Files Quickly" (page 94).
The basic procedure for chroma keying is as follows.
B
Foreground
AB
Video Switching
103
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