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green or blue??

Posted: Fri, 2nd Sep 2005, 2:16pm

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drspin98

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Is there an advantage to using green screen over blue. There is a lot of green (though much darker than "X-Box" type green) in the costumes I am using. What colour should I use? Thanx in advance!!
Posted: Fri, 2nd Sep 2005, 4:57pm

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Serpent

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If there is green in your costumes, definately use blue. Otherwise use green, but they both really work. Chromanator really does it justice. Even with my old 2001 $300 camera, I got great keys.
Posted: Sat, 3rd Sep 2005, 3:18am

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Rabbit Hole Pictures

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as serpent said

if you have green in your costumes, use blue.
Posted: Sat, 3rd Sep 2005, 4:08am

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drspin98

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Thanx for the tips, boys! I knew I could count on you guys for the bottom line!
Posted: Sat, 3rd Sep 2005, 4:46am

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Aculag

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The bottom line is: wear all green costumes and have a green background so you look like floating heads.
Posted: Mon, 17th Oct 2005, 4:23pm

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PaleRider

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Im going to get all technical about this......

The no...1 thing to remember is that you can use ANY colour as background....just as long as its one tone, but over the years, it has been tried and tested and found that certain colours have advantages over others.

BLUE SCREEN......We have all seen the results of the classic blue screen, from Superman to the weather girl on channel 7, the big problem of course is that natural skin colour contains blue pigment (if you've ever tried mixing a skin tone paint, you'll know that with out a slight hint of blue, it will never look realistic). The result is the skin becoming dull, and when composited, looks out of place.

GREEN SCREEN.....Favoured by the film industry, green screen produces a much sharper image, as you do not suffer from the colour loss that you got from blue screen. A problem with green screen, especially in well lit studios, is colour reflection. Green tones reflected on to natural skin can make it look unhealthy and drawn. Not a major problem, but it can make your actors look slightly ill and worse for ware.

PURPLE SCREENS.....yep purple is the new green. When i say purple, I mean light purple. Still not widely used as much as green, but apparantly the results are fantastic. (episode 3 used quite a bit of purple screen work).

DIGITAL MASKING....With digtal masking now widely available (chromonator for example), it's quite possible to use any colour. Wearing a blue shirt, shooting against a blue screen...no problem...mask the shirt and take out the blue screen only...
Posted: Mon, 24th Oct 2005, 10:35am

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gekjas

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How about red screen..?? oink
Posted: Mon, 24th Oct 2005, 10:27pm

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film freak

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PaleRider wrote:


you can use ANY colour as background
That may be true, but it would not come well. The reason people use green and blue is beacuse those are the only two colors not in human skin, making it easier to key out. You could use any color, but chances are, if it's not green or blue, it won't come out. Now, gekjas, I think they used to use red screens, but It wouldn't come out very well. Also, drspin98, if the costume is green, use blue, if you could use different costume color, use a greenscreen.
Posted: Sat, 12th Nov 2005, 10:56pm

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PalmTreeLTD

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gekjas wrote:

How about red screen..?? oink
Red causes problems because of lips and other skin tones.
Posted: Sat, 22nd Apr 2006, 7:51pm

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NickD

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When I'm going to composite my footage with an outdoor image/clip, I usually will use blue, because any spill around actors/props/etc. will most likely seem more natural in the outdoor environment. If you think about a slight green spill around your actors in front of a blue sky, well, a blue spill would be less noticeable.

But otherwise, I use green in general. Like others have said, it does generate a sharper image, and you will most likely not find it in skin tones. Even though it can cast a green reflection, if you light your screen properly it should be almost invisible.

Just make sure you key the shot as best as you can, as a green spill or fringe will look less natural than a blue one.

My two cents. smile
Posted: Wed, 10th May 2006, 2:14am

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carda

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Yes you can use any color as a background, the question is... Do any of the programs on fxhome key them all out?
Posted: Wed, 24th May 2006, 7:35pm

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Obi Wan Kenobi

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Well, I say green. Because, as said before, it has the least problems with colours and that sort of thing. What is also important, and this has not been said here yet, green is better for DV camera's, which are most commonly used in amature filmmaking, it has something to do with luminance values in DV which make the green stand out more and is more easily keyed out. So… GREEN FOR TEH WIN!!! razz
Posted: Fri, 16th Mar 2007, 2:17pm

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mercianfilm

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Completely depends on the colour of your costumes and proprs, as you've said green costumes go for blue biggrin and vice versa if necessary. You can't use ANY colour i don't htink, colours such as red, yellow, purple and white etc would be useless because they are pigment colours of flesh and so you'll look like decapitated actors. Go for blue! biggrin
Posted: Fri, 23rd Mar 2007, 11:32pm

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Plainly

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PaleRider wrote:

PURPLE SCREENS.....yep purple is the new green. When i say purple, I mean light purple. Still not widely used as much as green, but apparantly the results are fantastic.
Wow, that's something new! By "light purple", do you mean like this colour?



Or this colour?



Sorry for the absolutely enormous images!
Posted: Sat, 24th Mar 2007, 12:18am

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DavidLittlefield

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More like the color of this:

Right guys?
Posted: Sat, 24th Mar 2007, 7:32pm

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mercianfilm

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Yeh but wait....purple 's a pigment of flesh isn't it? so surely that'd mean your face would disappear during post prod...i dunno confusing!
Posted: Sat, 24th Mar 2007, 8:38pm

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Axeman

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Typically purple is not used for keying people, but rather for miniatures or other scene elements.
Posted: Sun, 25th Mar 2007, 1:17pm

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mercianfilm

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Ahhh i see! biggrin
Posted: Wed, 16th May 2007, 8:28pm

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Zea

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Green works better with MiniDV cameras. If you are using film or HD, go with blue.
Posted: Tue, 12th Jun 2007, 2:40pm

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Rockfilmers

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You can't use ANY colour i don't htink, colours such as red, yellow, purple and white etc would be useless...
Well, I have used yellow in my NLE with good results. I used it to on a stop-motion Bionical (They make great stop-motion puppets smile)