June 1, 2016 at 8:12PM

11

Colored backgrounds?

Hi Guys,

So I'm planning to do a project soon that will be shot in a studio space with a subject in front of a background. I have white, black, and green backgrounds I can hang up to use. However for this project I want colorful backgrounds (Pink, Blue, Yellow, Purple, etc.). Here are some links to videos that have similar looks to what I'm going for:

https://vimeo.com/117903649
https://vimeo.com/166212334

I'm wondering if I should just green screen and key out the background and then somehow put in a colorful one? (I've never done this before so if someone could let me know how that works I would really appreciate it). Or I could just buy solid colored backgrounds on amazon or something (except they're kind of expensive, like $40 for just one backdrop). I'd be so grateful for any advice or tips! Thanks!

2 Comments

Keying a different colour in isn't a problem at all, it's usually a question of the quality thats keyed in to replace the background.

It's probably worth doing some tests first as it doesn't always turn out like it should, other times it does.

Just remember, if you're planning to key in the colour you want to light it properly and to have the subject stood a good few feet away from the green screen to ensure there are no shadows on the background.

That all said, it's fairly easy to do. Make the backdrop you want. So say you want it exactly the same as the videos, take a frame from the videos, copy the colour over using the colour pallet (that water droplet thing) and make a solid background of that. Export that in the highest quality you can.
Then in the edit key out the green and replace it with the colour :) - Again I would definitely test it first before you decide this is what you want to do.

Lighting is key!

Good luck!

June 5, 2016 at 2:25AM, Edited June 5, 2:30AM

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Doing it in camera will always be easier.
If you afford the colored backgrounds you don't have to wonder about keying.
Everybody always says it is easy to key, but why do we still see so many crappy keys with bad edges and dull colors in the foreground?

For keying a few things are important:
- preferrably a pure key-green background
- an evenly lit background
- distance between subject and background to avoid reflected green spill as much as possible (backlighting the subject can subdue the spill a bit, but it might not be the look you are looking for).
- lighting you subject properly
- keep edges as tight as possible: it is easier to key a bold man than a woman with wild curly hair that is uncontrollable
- the camera and codec you use play a use part in the ability to get a great key (also shooting a higher resolution than the delevery size can be very helpful, BUT not when it means you;ll use a crappier codec)

If this is al new to you, I figure doing it in camera (using different colors) will be easier and quicker than doing it in post (keying).

PS.
If you have more time than money, you can experiment with keying so you can get it right for your project.

June 6, 2016 at 9:15AM, Edited June 6, 9:18AM

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WalterBrokx
Director, DOP, Writer, Editor, Producer
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