Chroma Keying Help

I want some help frm those who know abt chroma keying

I dun have a blue or green screen in my home. Is it possible, is there any software that can make the video background green and then will I be able to chroma key?

Or any other help!

Check this out : http://fxhome.com/photokey/

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You need a greenscreen studio for that

I'm assuming you're looking for basic chroma key guide. I experimented this with chroma key few days back, and no you do not need a chroma key studio for that purpose. I painted just one wall in my basement with apple green color and my work was done. You need to know the basics of Adobe Ultra and a bit of Premiere and you're good to go. The quality of video is not very good because I was on a shoe string budget, the equipments (camera, lights) were pretty much low-end. It was just an experiment anyway.

http://www.youtube.com/watch?v=SUXl4qDDR0w

http://www.youtube.com/watch?v=9XtWKr5m_0Y

http://www.youtube.com/watch?v=jXeYxYZlDPY

Here are some videos that might be helpful.. Search youtube for more online material.

<--- Lighting the background (most important part, do more research on this topic)

http://www.youtube.com/watch?v=FmQQk6aqCJ4

I was wondering if there is a software that can make my background green and I don't have to paint or buy any green screen

is it possible?

Not that I'm aware of. It is possible using photoshop and after effects but it would be a real pain in the rear as you'd have to cut the subject from background frame-by-frame.

[quote=", post:, topic:"]

I was wondering if there is a software that can make my background green and I don’t have to paint or buy any green screen

is it possible?

[/quote]

Maybe this will help… Green Screen Wizard

[quote=", post:, topic:"]

Maybe this will help… Green Screen Wizard

[/quote]

You have to buy a green screen to use this software too

Maybe, it’s impossible and I have to paint any wall green

[quote=", post:, topic:"]

I want some help frm those who know abt chroma keying

I dun have a blue or green screen in my home. Is it possible, is there any software that can make the video background green and then will I be able to chroma key?

Or any other help!

[/quote]

Adobe After Effects, I guess, can do the job. using Track Motion options. search google for tutorial

edit: Impossible is Nothing

[quote=", post:, topic:"]

I have to paint any wall green
[/quote]

or blue.

There are many good reasons to stay away from blue when it comes to chroma keying. Humans usually notice green more than red and blue with the same brightness, therefore the cameras are designed to give green more bandwidth. As a result, blue is the bottom emotion layer and that makes it the one with more noise. Green screen has less noise than blue and that makes people switch to green screen. It also needs less light because green simply appears brighter.

[quote=", post:, topic:"]

I want some help frm those who know abt chroma keying

I dun have a blue or green screen in my home. Is it possible, is there any software that can make the video background green and then will I be able to chroma key?

Or any other help!

[/quote]

The point of chromakeying is to remove the background plate and replace it with a background of your own choice. The computer basically looks for the color that you specify and ‘cuts’ it out of your footage, leaving the resulting area transparent. The reason that the color green or blue is used is because human flesh tones have very little blue or green in them and so actors key very well on a blue or a green background. If you use a color like red as a background, you will find that parts of your actor’s body will become transparent.

That said, any color can be used as a background for a chromakey, it just depends on what you are shooting, If you are filming a red vase, you can use your white wall for the background and it will key out very well.

So in answer to your question, if you need to film any actors, you will need to build or hire a green or blue screen…there is not way around it. If you are shooting something else, you can get away by shooting them against your regular white wall (although I wouldn’t recommend it since most things usually have some element of white in them).

One more thing…even IF there was a software that could make your background green (there isn’t), it would serve no purpose since the point of shooting against a green background is to be able to key it out later. If the software could magically turn the background green for you, it would make more sense to just replace the background with your own background, rather than by changing it to green and then keying that out.