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live Chroma Keying

live chroma keying



Frage von badpat:
August 2007

Hallo erstmal!

I have a small to medium-sized problem, I have a busy highway and filming at the crash several Articles and graphics show, unfortunately iritiert also taking into account both the gray pavement as synonymous the different colored cars (not influenced), it's feasible? ?

Hope for your creative suggestions!



Antwort von robbie:

Use masks, etc. ... On a drive crash under normal circumstances and no cars. The area so you can edit schonmal extra ...

And whether Chromakeying is right, or live with what it has to do, is synonymous to think a good question ...



Antwort von megalutzi:

Hello,

So live (in real time), I see hardly any way to realize.

In the post s.PC course, no huge problem.





Antwort von thos-berlin:

I think a live chroma keyer is so overwhelmed (at least in Amateur-/Semiprofi-Bereich).

I think it is s.Besten, in the Postpro to make. That gives you all the time and all the possibilities, several experiments to do.



Antwort von TheBubble:

Is the camera fixed (not moving)?



Antwort von Markus:

Possibilities of a live Chromakeyings there are already, but if it is remembered that even with the Olympics only a single camera mastered this procedure, one can easily imagine the price range associated with it. I do because ¬ 6-digit amounts.

Cross-reference to the same question in the Video Forum



Antwort von megalutzi:

Hello,

I'm just on about whether I could live hinbekommen. Is certainly expensive. But with my Videomischern would be perhaps possible. I've got a total of 3 video mixers, 2 of which can Chromakey, with the other one could have ne sowas no sliding aperture mask-like target.

But it is costly in any case would be easier and s.PC.



Antwort von Markus:

"megalutzi" wrote:
... with the other one could have ne sowas no sliding aperture mask-like target.

And when two cars behind each pass, you also need a fourth mixer. With three cars a fifth ... well, and so next. ;-)



Antwort von thos-berlin:

I think that with a reasonable cost with only a fixed camera. The Color of a crash is not evenly distributed. So, the "tolerance" be generous. This could re-image areas with other gstanzt be. You must still somehow limiting. It could be as "preparation" to make a mask that only makes visible the crash. (From a snapshot of the scene and make on-site with a graphics editing program.) The passing car would only have to punch upset when the shade near the s.der Color Leiplanke (including tolerance) would be. For this you would need about two mixers, the master keying. The one makes the mask, the other for Chromakey.

Do not forget: In order for the "fade" looks reasonable, it must be synonymous in the correct perspective and of course s.der right place of the messages contain.



Antwort von DWUA:

"badpat" wrote:
Hallo erstmal!

I have a small to medium-sized problem, I have a busy highway and filming at the crash several Articles and graphics show, unfortunately iritiert also taking into account both the gray pavement as synonymous the different colored cars (not influenced), it's feasible? ?

Hope for your creative suggestions!


Why and what ever "live chroma keying?
Why not in the postpro the most successful recordings
ride and static cameras as background for your
apparently important text (specifically: graphics) use?

A little details of your question is yes, unfortunately, not be found!
Why easy if it is synonymous complicated ...

;)




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