Infoseite // green screen only to certain areas



Frage von Ravenmaster:


So yes it is about this and although I have just a little thought about keying and whether there are problems there when the green screen on a meadow now wants to use. Then the idea came to me that it is only a certain area keyen could, however, I have no clue how to accomplish this would be .. is there a possibility? or simply because you have bad luck and others should not use color to keyen?

Is just a hypothetical instance of me but still interested:)

Space


Antwort von Axel:

Green Screen on a meadow? What at first sounds absurd, it can still very useful. Let's say someone makes a picnic (blanket, basket, you are sitting on the grass) in New York's Central Park, the skyscrapers in the background. The recording was created but in reality in the park of Bad Winzstetten, no skyscrapers. Only the upper body with the hair would be in front of the skyscrapers to be seen. So it depends on two tripods, a green area behind the actor.

In the Postpro is the lowest level of the entire picture, about a level with the skyscrapers, through a mask trimmed so that they only start after the lawn. In a duplicate of the first level, now with the same mask provide. On the green background you apply keying, so that the skyscraper will be visible again.

The fact that already a lot of green in the picture, you need> any <not so much spill (green contours) to remove. Against a blue sky as a background would be from this point a more favorable Keyingfarbe blue.

Space


Antwort von Mylenium:

"Raven Master" wrote: So yes it is about this and although I have just a little thought about keying and whether there are problems there when the green screen on a meadow now wants to use. Then the idea came to me that it is only a certain area keyen could, however, I have no clue how to accomplish this would be .. is there a possibility? or simply because you have bad luck and others should not use color to keyen?

Is just a hypothetical instance of me but still interested:)


The crucial question is whether green or not green, but which is green. Since it-screen colors several variations for different lighting conditions, it is perfectly possible to find, even on 'would work its Meadow - with limitations, of course. Lush green, long grass funzt definitely not with Green Screen, but short grass, that the soil can durchschimmern could already funzen just like grass in a very dark shade, which just looks less green. Otherwise, it is of course synonymous to the camera setting. Floating suspension a few inches above the ground is a viable solution synonymous. If all this is not possible, anyway you would in a studio shoot on a blue carpet, eh is now the head shatters ...

Mylenium

Space





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