Composing video with keys, Flow of operations, By keying – Sony MKS-2010 User Manual
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Composing Video With Keys
Composing Video With Keys
A key is an effect in which color and shape information is used to cut out part
of the background video and replace it with another color or other video. The
signal determining how the background is cut out is termed the “key source,”
and the signal that replaces the cut-out part is termed the “key fill.”
This system supports the following types of keys.
Luminance key/linear key: Used to insert titles and logos into the video. The
key source often shows black and white text, which is detected by using the
luminance (Y) signal.
Chroma key: Used to compose scenes with two different components, for
example people and a background. A key signal based on a particular color
is used to cut out the background.
Pattern key: Video is composed using various patterns. A special pattern is
used as the key source.
Flow of Operations
The following figure shows a typical flow of operations when using the MFS-
2000 system. For details about operations, see the pages in parentheses ( ).
Basic operations
: Always done
: Done as required
: Done at this stage
Select an effect
Prepare the transition
Use internally generated signals
Fade out to black
When mix or
preset color mix
is selected
Advanced operations
Advanced effect operations
a)
Advanced key operations
Select video
a) Some patterns cannot be modified in
this way. For details, refer to “Effect
Pattern Transformations and
Modifications” in the Appendix
(separate document).
Change the position and size of the effect pattern
Color correction
Frame memory
Snapshots
Safe title
Select the transition type
Select the operating channels
Modify the video border
Execute the transition
Compose video by keying