How Does a Green-Screen Work?

How does a green-screen work and how can you use it in your videos?
Used in everything from movie special effects to your local weather forecast, green-screen makes it easy to add elements together to achieve an effect that would be otherwise impossible to create.

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[airenhastings]

Have you considered adding this as a cap attachment?
Yu czozuld flip iy up and down for use and looks light weight.

[whitecloud_]

But you never actually told us how it works. I'm confused.

[jus_danny]

Okay you didn't really say how it works 🤔

[micable]

Misleading title... Should be 'how to behave with a green screen' I was actually trying to help explain to my mum....

[kurtb]

I've done this multiple times as a commercial producer. In the standard def days, jaggies along the edges of the keyed subject were a problem. Thank God for HD.

[valeriivanov]

I`ve searched everywhere and it doesn`t show what I want and this video is just purfect! thank you!

[fred]

I can shoot my video then put it into a green screen program. Then edit it and put what ever background I want into the shot. But how is it done in real time ?

[tutuyenfamily]

I don’t understand how it work on live shows when you need to edit it on computer?

[wolfheart]

I have a room that is bright green (Well, the walls are) would that work?

[synonymoususer]

why can't you use a Blue Screen? or a Purple one? does it have to be green to work?

[jdr]

0:47 ME: that would be useful for a spookey video xd

[bobbykaralfa]

and forgot to say it dont have to be green either

[TONY_FEZ]

how does the green screen work when the screen they are using doesnt stretch the full width of the screen?

[brownpunk]

Im an alien and my skin is green..so wat color should i use pls..serious question human👽

[thatonekid]

so all I have to do to make a green screen is staple a green blanket to a wall?

[Galaxis.Genesis]

omg. this video wins a THUMBS down for most deceptive title... EVER.

[swampjajc]

A video called how green screen works that doesn’t actually tell you how green screen works.

[Izunkooo]

everything that is green or blue turns to a selected image, so you can be like anywhere you want

[jonathanbroughton]

So at what point did you explain how it works this is how to use it

[praveenkumargupta]

That appiya mulla has done the same !! Delhi ko aag me jhokne ke baad 🙂