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141. Basic operations1-3. KeyThis operation combines the background image with anotherimage. The key definition can be adjusted, and an edge canbe added to the combined image.Also available as materials besides KEY for combining withthe background image are PinP (picture in picture) and DSK(downstream key).The default settings for priority (image positioning) are asshown in the figure below.KeyPinP1PinP2DSKBackground imageThe priority for Key, PinP1 and PinP2 can be changed. Refer to “1-3-10. Setting the priority”.How key combinations work is shown in the figure below.HS410HS410BackgroundKey sourceKey fillOutput imageInvert1-3-1. Selecting the key type1 Press the k button to light its indicator, and display theKey menu.2 Use [F1] to display the Key sub menu.3 Use [F2] to select the Type item.Lum(luminance key/self key)This is for creating the key signals fromthe luminance component or luminanceand chroma component of the key fillsignal.Linear(linear key/EXT key)This is for creating the key signals fromthe luminance component of the keysource signal.It is used when the key source signal andkey fill signal are different.Chroma(chroma key/self key)This is for creating the key signals usinga specific hue of the key fill signal as thereference.Full(full key/self key)This is for creating the key signals usingthe images on the full screen as the keysource signals.PinP combinations are possible inconjunction with the flying key. See “1-3-9. Flying key”.Since the luminance and chroma keys are operated asself keys, the key fill signals are used as the key sourcesignals. For the full key, the images on the full screenare used as the key source signals.When the luminance key, chroma key or full key hasbeen selected as the key type, the key signals willremain unchanged even when the key source signalsare switched.When using the linear key, use material with a blackbackground and white characters or shape to becombined by the key as the key source signal.Material which is not black and white may not becombined clearly.Material with a white background and black characters,etc. can be reversed using the key invert function foruse.4 When the luminance key has been selected, the chromacomponent can be included in the generation of the keysignals in view of the self key application. (This does notapply to the linear key.)Use [F3], and select the setting using the Lum Key item.Chroma On In addition to the luminance component, thechroma component is also taken into accountin the generation of the key signals.This is the setting for using a color with a lowluminance component for the key signals(such as when defining blue characters).Chroma Off The key signals are generated from only theluminance component.5 Use [F4] to select the fill type using the Fill item.Bus The bus signal is used for the key fill signal.Matte The internal fill matte is used for the key fillsignal.
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