INDIGO AV Mixer
User Manual
53
Video Processing
Chroma Key
A
chroma key
is a key that detects color (rather than luminance) in a video
image and replaces it with a new background. For example, a reporter may
be in a studio sitting in front of a backdrop with a blue or green backing
color, and the new background can be a mountain scene. The completed
chroma key consists the mountain scene replacing the backing color, cre-
ating the illusion that the reporter is sitting in front of the mountain.
Figure 31. Chroma Key
X
X
+
Suppression
Background Video
Key Hole Background
Chroma Key
Chroma Key Source
Completed
Invert
Chroma Key
(video only)
Primary
Gain
Clip
Invert
Suppression
Chroma Key
Secondary
Key Control
Backing Colors Selected
Chroma Key Fill
Backing Color Suppressed
Chroma Key Fill
Backing Color Removed
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Страница 8: ...8 INDIGO AV Mixer User Manual Table of Contents Glossary 163 Index 171 ...
Страница 16: ...16 INDIGO AV Mixer User Manual Section 2 Welcome ...
Страница 36: ...36 INDIGO AV Mixer User Manual Section 4 Initial Settings ...
Страница 162: ...162 INDIGO AV Mixer User Manual Section 12 Technical Specifications ...