ViewCast 450E, 240E manual Enable Key Color

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Osprey 240e/450e User Guide

Enable Key Color

Figure 53. Enable Key Color

You can control the key color and the transparency effect. If video is running, you see your changes interactively.

You can use these controls with both BMP and PNG images. You can use key colors with PNG images that contain embedded alpha channels, but alpha keying is superior solution. If your image editor supports alpha keying, use alpha keying and leave the key color controls disabled.

The key color disappears from the graphic so the underlying video shows through unchanged.

If you clear Enable Key Color, all colors display.

If you select Enable Key Color, key coloring is activated. The five radio buttons are activated. You can select one of four standard colors – dark gray, medium gray, cyan, or magenta – or a custom color. If you select Other for a custom color, the three edit boxes – Red, Green, and Blue – are activated, and you can enter any color value in the range 0..255 into these boxes.

Key colors to identify transparent portions of logos can be exact or inexact. The Tolerance control (Figure 54) determines this. If Tolerance is 0, then all key colors have to exactly match the Red / Green / Blue values shown in the key color control group. If Tolerance is nonzero, then the Red / Green / Blue values can deviate from the key color by the tolerance value and still be treated as being equal to the key color. For example, if Tolerance is set to 5, and the key color is set to grey (192, 192, and 192), then pixels in the bitmap with value (187, 187, and 187) are also transparent.

Figure 54. Tolerance control

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Contents Osprey 240e/450e User Guide Page Contents AVStream driver reference information Osprey 240e Environmental specifications Osprey 450e Page Reseller Pass Through Limited WarrantyOverview WarrantiesMinimum system requirements System requirementsInstalling the driver Installation StepsInstalling the video capture card Custom installing AVStreamTo install the video capture card Digital Signature Not Found Window Accessing the Osprey Config Utility Setting Driver PropertiesInitial OspreyConfig user interface OspreyConfig’s initial processing sequenceSelecting a device for configuration Control used to open the properties Osprey Video Device Properties window tabs Understanding the device properties windowRefSize InputVideo Proc Amp Video DecoderDevices and global controls OspreyConfig utility to access devicesInput tab Input tabVideo Standard CancelVideo Input Video PresentInput tab without AV option Osprey 450e AV option hardware add-on-deviceOsprey 450e Video inputVideo Standard field Video standardComposite camera Input Format analog inputsVideoGraph VideoCheckVideoGraph VbiGraphVideo Proc Amp Tab Video Proc Amp tabBrightness Color EnablePowerLine Frequency Anti Flicker DefaultVideo Decoder tab Video Decoder tabVCR Input Signal DetectedOutput Enable Lines detectedFormat Horizontal DelayRefSize tab HorizontalHorizontal Format Square PixelsCCIR-601 Use WideScreen Horizontal DelaySignal WSS WideSource Width Source WidthVideo Type Format HW or SW Adds CPU Granularity Reference Size for Crop and Logo PlacementLine Ntsc Vertical Format Line Ntsc Vertical FormatDeinterlace Currently UsingFilters tab SimulStreamSimulStream option SimulStreamMultiple instances Osprey 240e/450e User Guide Motion Adaptive Adjust…Deinterlace Inverse TelecineBackground − telecine and inverse telecine Current Using settings Currently Using groupAdaptive Deinterlace window Motion ThresholdFrame Algorithm Test Mode Restore DefaultsClose Osprey 240e/450e User Guide Device tab Buffers Requested No-Video Test PatternDiagnostic Logging Diagnostic loggingTypical section of data Board Numbering Device InfoBoard Numbering Setting Driver Properties Timestamping ExtrasTimecode Video Marking Closed CaptionCaptions tab Captions tabPin Select Render Logical White As Render Ntsc Closed Captions On VideoCC Pin CC PinOn File and Color Sub tab Enable Logo onFile and Color sub Tab Enable Key Color Logo tabOsprey 240e/450e User Guide Pin Select File and ColorEnable Key Color Enable Key ColorPosition and Size WeightingOsprey 240e/450e User Guide Size and Crop tab Size and Crop tabReference Size Enable CroppingDefault Output Reference SizeFormat Horizontal Vertical GranularityEnable Cropping Enable CroppingRecalc button Default Output Size Default Output SizePage DirectShow AVStream driver reference informationAVStream Driver Reference Information Post-Processing mode Post-Processing modeAVStream Driver Reference Information Efficient Video Rendering Preview Pin to Video RendererPreview Pin to Overlay Mixer to Video Renderer Video Mixing Renderer Preview Pin to VMR7Some Data Points Preview Pin to VMR9AVStream Driver Reference Information Color formats Video standards and sizesYUV format details Closed captioning CC Captioning via CC or VBI pinsDirect CC rendering on video Vertical Interval Timecode Vitc CC streaming interfaceTimecode Video Marking Vertical Blanking Interval VBI captureAudio driver Selecting the audio source and input volumeAudio Driver Audio properties Audio propertiesAudio playback Audio configurationMono Source Mode Audio formatsDual Mono Input reference level Audio levelAppendix a Osprey hardware specifications Environmental specificationsOsprey 240e Osprey 240e long back plate Osprey 450e back plate Osprey 450eAppendix a Osprey Hardware Specifications Appendix B Osprey 450e audio cable Mini-DIN Signal RCA ConnectorsPage Appendix C Troubleshooting Color bars on video screenScrambled video image Poor video quality at large frame sizes Multiple horizontal lines across video imageCannot play back recorded audio Osprey 240e/450e User Guide Page Index Appendix C Troubleshooting Osprey 240e/450e User Guide Viewcast.com