RGB Spectrum SuperView 3000 user manual Video Levels and Chroma KEY

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VIDEO LEVELS AND CHROMA KEY

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If you have the optional BACKGROUND INPUT connector on your SuperView unit, then in Autosync mode you have the option of using the Chroma Key mode. In this Autosync display option, windows selectively replace the background computer graphics, based on the color of the graphics. The concept of chroma key is discussed in greater detail in this chapter.

The SuperView’s chroma key serves two purposes. First, it allows the boundaries of the video window to be user-defined. You can create windows of arbitrary shape by “painting” a window of the desired shape in the key color. The second purpose is to overlay the video with the host computer’s graphics and text. The host computer graphics and text are generated on the computer screen in the same area as the window. A key color for the background of the host computer graphics image is selected. This key color must be different from any other color used in the computer graphics overlay. When the ChromaKey is enabled, the window is displayed in the background of the host computer image—i.e., the graphic overlays block out the window image, and the window image appears where the key color is drawn.

The key color is defined by a range of values for each of the red, green, and blue computer signals. The selected key defines whether the host computer’s display signal is “transparent”, i.e., if the color from the computer falls within the specified range, the window signal is shown. For example, if a host computer signal consists of red lines on a white background, and white is chosen as the key color, then the resultant image on the screen is of the window overlaid by the red lines. Considering it another way, you could say that the window “shows through” the white area.

The SuperView’s chroma key circuitry works by examining the values of the host computer’s red, green, and blue signals at every point on the screen. If the value of each signal falls in the “acceptance range” for that signal, the host computer image is made transparent, and the windows are allowed to show through. All three high-resolution signals (red, green, and blue) must lie simultaneously within their respective acceptance ranges for the host computer image to be transparent. For the windows to be made visible, the chroma key circuitry must indicate that the host signals are within the acceptance range, at the same region as the window location.

It is not possible to key on a single color value. This is because the precision of the digital representation of the color in the host computer’s frame buffer (or color map) is lost when it is converted into analog form in order to drive the color monitor. There is also variation in gain from frame buffer to frame buffer. Even if it were possible to specify the color exactly, slight amounts of noise, video overshoot and temperature drift would cause unreliability. Therefore, you must specify a range of colors on which to key.

May 9, 2002

SuperView 3000 User Manual

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Contents SuperView May 9 Chapter Supplied Components Chapter Serial Command Set N. E. .R. A. .L NtroductionT.P. .U. T N. .D. .O.W. . .I.N. .P.U. .T.SD E O O V E R L a Y S C H R O M a K E Y S.T. E. .M. . .F.E. .A.T. .U.R. .E.SSystem Features Supplied Components Optional Items S.T. E. .M. . .I N. .D. .E.P. .E.N. .D. E. .N. .C.E System BasicsR.I.A. .L. .P.O. .R. .T. .C. O. .N. .T.R. .O. .L N. .D. .O.W. .SN. .T .R.O.L D. .C.L.I.P.P.I.N.G P.E.C.T. .R.A.T.I.ON.D.O. .W.S. .O.N Window 2 on D. .E.S D.EE E R U N Composite video window input N. N. .E. .C.T. .O. R. .SBNC FemaleI.T.S T. .U. P. .. .A.U. .T.O. .S. Y. .N. .C. .M. .O. .D.E J.U.S. T. M. .E.N.TBackground Input T. .U. P. .. . F. .R. E. .E. -.R. .U. .N. .M. .O. .D.ESuperView Front Panel, Twelve Input 3RU Unit Front Panel ControlImage Brightness Contrast +100 Saturation +100 A. .G. E. . .M. .E.N. .UP. U. .T. .M. .E. .N.U T.P. .U. T. . .M. E. .N. .U N. .D. .O.W. . .M. .E. N. .U S. .C.E. .L.L. .A.N. .E.O. .U. .S. .M. .E.N. .U A. .T. U. .S. . M. .E. .N.UE.S. .E.T. .S E.S.E.TPresets Serial Command SET Active Lock DebugRGB Svideo ComponentHost Auto Lock Free DebugWith the HostSave 1…10 command Save command to store the Host ListFactory default Host #11 HostInteractive NonePAN On OFFOFF Setrate RSRSize WDRWSR HUE Echo On OFF PresetAutosave On OFF DemoHFP VersionHBP HactHost List VCP Software for the SuperView Technical Specifications Depth 18.0 45.7 cm 2RU up to six inputs Width 17.5 44.5 cmHeight 3.5 8.9 cm 3RU up to twelve inputs Width 17.5 44.5 cmO.U. .B. L. .E. S. .H. .O.O. .T. I.N. .G. .G. .U. .I D. .E TroubleshootingPoor Quality Video Echo modeFunction, see below Poor Quality in Chroma KeyFirmware Updates/README Files Firmware Updates/README Files RS-232 Control CTS S.C.R.I.P.T.I.O.NDSR R.A.M. .E.T.E.R.S D.E.M Video Levels and Chroma KEY 525 1250 525 White 100%Yellow 100% 525 1250 -270Ckc -270 175 525 1250 525 D E O L E V E L S a N D C H R O M a K E Y Updating System Firmware Do not proceed to update firmware without these two itemsD a T I N G S Y S T E M F I R M W a R E S. D. . .C. O. .M. .M. .A. N. .D. .S Serial Control of Multiple UnitsUnassign cancels Mpsd mode for all connected devices Assign Re-establish Mpsd communication mode Device Into Mpsd modeAssign UnassignMpsd Example Baud Rate Change T.E. N. .D. .E.D. . .W. .A.R. .R. .A.N. .T.Y Product WarrantyR. .R. A. .N. .T.Y Extended Warranty

SuperView 3000 specifications

The RGB Spectrum SuperView 3000 is a cutting-edge solution designed for multi-source video wall applications, offering unparalleled performance and flexibility for diverse industries, including control rooms, broadcasting, and corporate environments. This display processor harnesses advanced technologies to deliver superior video management capabilities, making it a preferred choice for professionals in need of high-resolution visual outputs.

One of the standout features of the SuperView 3000 is its ability to support a vast range of video formats, allowing for seamless integration of multiple source types. This includes HDMI, DisplayPort, DVI, and analog inputs, ensuring compatibility with a variety of devices from PCs to cameras. The system is engineered to handle resolutions up to 4K, providing crisp and vibrant visuals that enhance the viewing experience.

Another significant characteristic of the SuperView 3000 is its powerful processing capabilities. The unit can manage multi-window layouts, enabling users to display numerous sources simultaneously on large video walls. This is particularly beneficial in environments where real-time information dissemination is critical, such as in emergency operation centers or newsrooms.

The SuperView 3000 leverages a modular architecture, allowing users to configure the processor according to specific needs. This scalability is a key advantage, as it can grow with the requirements of an organization. Whether using a small setup with a few screens or a massive installation with dozens of monitors, the SuperView 3000 can adapt to varying scale and complexity.

User-friendliness is another hallmark of the SuperView 3000. The system includes intuitive software that facilitates easy content management and layout design. Operators can quickly arrange sources, transition between layouts, and implement real-time adjustments, all from a straightforward interface. This ease of use minimizes the learning curve and boosts operational efficiency.

With robust reliability and comprehensive support, including redundancy features and network management tools, the SuperView 3000 is engineered for continuous operation in demanding environments. Its versatility and performance make it an invaluable asset for any organization looking to enhance their visual communication capabilities. In summary, the RGB Spectrum SuperView 3000 stands out as a premier choice for advanced video wall processing, offering a suite of features designed to meet the diverse needs of modern enterprises.
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