Edirol V-4 owner manual Using Chroma Key to composite images

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Compositing two images

7.Turn the effect off

Press the button again to turn the effect off.

Some effects cannot be used simultaneously.

You can change the P in P effect settings to modify the location and size of the superimposed image (the secondary image). For details, refer to p. 75 or later.

Using Chroma Key to composite images

You can composite two images by extracting a specified color from one image and replacing it with the other image. Such a composition effect is called Chroma Key. Here’s how you can composite the image from channel B and overlay it on the channel A image.

1.Set the memory dial (MEMORY) to 1.

Turn the dial all the way to the left to select the 1 position.

2.Select channel A image.

Play back the image that you want to use as the background.

3.Select channel B image.

Input image to overlay into channel B. The image for Chroma Key is generally shot with blue or green background.

4.Press the Chroma Key button.

Press the channel B “ Chroma Key” button.

5.Move the video fader to channel B.

The blue part of channel B image is extracted and the channel A image appears.

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Contents Page Avis Page Page Additional Precautions Power SupplyPlacement MaintenanceAbout turning the power on About specificationsOther important notes Contents Midi implementation Index Welcome Features Link What is V-LINK?Check the included items Before you beginRear Panel Names of things and what they doFront Panel Before you begin Unsuitable places for connection About Ground TerminalTypical connection example Connecting peripheral devicesVideo signal flow Turning the power on/off Turning the power onTurning the power off Checking the inputs and outputs Checking the final outputChecking the output to the preview monitor About the display on preview monitor About the Memory dial Memory Conceptual diagram of the Memory dialSwitching by Cut Switching two imagesSwitching with Wipe Switching with dissolveUsing fade-to-white or fade-to-black Compositing two images Using Picture In Picture to composite imagesUsing Chroma Key to composite images Using Luminance Key to composite images Compositing two images Compositing two images Applying the Negative effect Changing the color of the imageApplying the Colorize effect Changing the color of the image Applying strobe motion Changing the motion of the imageApplying the Multi effect Applying the Multi or Mirror effectsApplying the Mirror effect Switching in synchronization with music Using BPM sync to switch imagesUsing the tap TAP function to switch images Switching in synchronization with music Using BPM sync to apply an effect Using the tap TAP function to apply an effectApplying an effect on the music Enter Button Enter Editing the front panel assignmentsEditing the front panel assignments Changing the assignment of the mix button MIX Changing the assignment of the wipe button Wipe Changing the assignment of the EFX button EFX Editing the front panel assignments Output Fade Changing the assignment of the output fade dialEditing the front panel assignments Editing the front panel assignments Editing the front panel assignments Changing the assignment of the BPM sync button BPM Sync Editing the front panel assignments Editing the front panel assignments Protecting the memory Copying or exchanging memories Recalling the factory settings Editing the front panel assignments Control the V-4 from an external device Using V-LINK to controlUsing V-LINK Using Midi to controlDV-7PR Midi settings Setting the Midi receive channel Midi Rx Channel Making other Midi settings Midi Setup Making various settings Making various settings Calibrating the video fader Calibrating the video fader What is Presentation mode? Using the V-4 in Presentation modePresentations using two screens with Picture In Picture Switching to Presentation modeUsing the V-4 in Presentation mode Switching between Ntsc and PAL Changing the video fader orientation Changing the video fader orientation Operating the video fader does not switch the image TroubleshootingMenu List Menu List255 Effects-A Mem2-8 Efx1 Efx2 Efx3 Efx4 Effects-B Output Fade Mem2-8 BPM Sync Mem 2-8 Mode Midi Setup Midi Tx Channel Utility Mode Preview Auto Speed Video input Main specificationsMain specifications Dimensions Using the V-4 at an event Examples of usingDV-7PR Using the V-4 at a concert or VJ performanceDVD Using the V-4 at a presentationVideo output Preview Midi control Projector Midi messages received at Midi Midi implementationMidi implementation Midi messages transmitted from Midi OUT Midi implementation Midi Implementation Parameter Address Map Clip Control Preference Appendices Factory Setting of V-LINK Midi Implementation Chart PAL IndexInformation 03019190 ’03-01-C2-11KS