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INTRODUCTION
Video Overlays – Chroma Key
May 9, 2002 SuperView 3000 User Manual 3
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VIDEO OVERLAYS – CHROMA KEY
The SuperView provides chroma key circuitry for overlaying the window input
imagery with the background computer graphics (gray scale or color). This
feature is only available if you have the Autosync option and the B
ACKGROUND
INPUT connector.
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CONTROL OF THE SUPERVIEW
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FRONT PANEL
Many of the SuperView’s functions can be controlled from the front panel .
These include: Window Size, Window Position, Zoom, Pan, Window Priority,
Motion Filter, Brightness, Contrast, Saturation, Gamma, Freeze, and
ChromaKey.
FIGURE 3. SuperView Front Panel, 2RU Enclosure
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RS-232
The SuperView has a PRIMARY RS-232 serial port which connects to an ASCII
terminal or to any computer with a serial port. Commands are sent from the
terminal or computer to the SuperView. The commands have a simple syntax
and are described in Chapter 6, “Serial Command Set”.
The SuperView also has an A
UXILIARY RS-232 port, which allows multiple
SuperViews to be daisy-chained and controlled by a single terminal or
computer. Certain other products from RGB Spectrum also have two serial
ports, allowing these units to be part of the chain.
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SYSTEM FEATURES
• Accepts up to twelve inputs—each input channel accepts NTSC/PAL
Composite, S-Video, Y P
B PR Component, and high-resolution RGB
signals.
• Up to six user-defined presets can be stored and recalled for later use.
These presets store information about window size and position, image
controls, and overall arrangment of inputs on the screen.