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II-19
Setting Keys
Chapter 2 Video Switching
Setting Keys
A key is a function for cutting out the background image
and then inserting an image or text in that portion. The
signal for cutting out the background is called a key
source, the signal for filling the cutout portion is called a
key fill, and the block for processing a key is called a
keyer.
This section describes how to make detailed adjustments
for keys.
With this unit, you can make the following settings for
keys.
• Basic Operations for Keys (page II-19)
• Setting Key Transitions (page II-20)
• Selecting the Pattern and Direction for Key Wipes (page
II-20)
• Making Detailed Adjustments to Key Wipe Patterns
(page II-20)
• Setting Key DME Wipes (page II-20)
• Making Detailed Adjustments to Key DME Wipe
Patterns (page II-21)
• Selecting Key Types (page II-21)
• Making Detailed Adjustments to the Luminance Key
(page II-21)
• Making Detailed Adjustments to the Linear Key (page
II-21)
• Making Detailed Adjustments to the Chroma Key (page
II-21)
• Setting the Key Fill and Key Source (page II-21)
• Setting a Mask for a Key (page II-22)
• Adding an Edge to a Key (page II-22)
• Adjusting the Size and Position of the Key (page II-22)
For the basic operating procedures of the luminance key and chroma key, see
“Composing Images with Keys” (c Basic Operation).
Make the key and the key transition settings in the [Key]
menu.
For details on the [Key] menu item, see “Details on [Key] Menu” (page
II-23).
In 3D mode, the [Key] menu is not displayed.
Basic Operations for Keys
Use the following procedure to perform basic operations
for keys.
Depending on where you want to perform the key
transition, perform one of the following two variations for
basic key operations.
• Effect transition (select KEY next transition button)
(page II-19)
• Key transition (page II-20)
Effect transition
Material selection
Transition configuration
j
Key configuration j
Tip
Material selection
r
Transition configuration
r
Key configuration
r
Transition execution
Press the KEY bus delegation button.
r
Select the video for program output.
r
Select the key material (i.e., the image to be
superimposed on the program video output).
1) Use the [Effect] menu.
Press the KEY next transition selection button to light it.
r
Press the MIX button or EFF button.
r
Set the transition type for the effect transition.
1)
r
Select the pattern and direction for the wipe or DME wipe
if necessary.
1)
Select the key type.
r
Make detailed adjustments to the key if necessary.