Digital Backgrounds/Chroma key?

Joined
Feb 6, 2006
Messages
20,041
Location
TX originally from Louisiana
Well, I think I've asked this before, but would like to know if anyone uses a chroma screen and digital backdrops? Also which software is used for processing - CS 3,4,5 or perhaps would Elements work also?
 

Growltiger

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Joined
Apr 26, 2008
Messages
13,379
Location
Up in the hills, Gloucestershire, UK
I have done it. I used a green screen. It was behind some ship models with huge amounts of delicate rigging. The problem I had was getting good separation. For example the green reflected light illuminated the fine white wires slightly.

I should have had far better lighting for the background, quite separate to the lighting for the subject. But I couldn't do that for the setup I was dealing with.

Processing is quite easy as one can simply select all the matching green using the correct tolerance and delete it. Then provide a suitable background in the level below. Photoshop does all this easily, I don't know enough about Elements.

I'll show you an example. Please note that there is no sea or waves, because the model builder wanted to show all of the ships.

Before:

114%20Model%20ship%20before.jpg
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After:

114%20Model%20ship%20after.jpg
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Joined
Jan 15, 2010
Messages
3,985
Location
UK
I have tried it in the past but decided for most of what I need can be acomplished just using Photoshop. There are other masking programs out there as well such as Topaz remask etc

There are a few different programs that offer this functionality
Primatte Chromakey 3.5 $199
Windows. Will run on the following
PS7, CS, CS2 CS3 CS4(32bit) CS4(64bit) CS5 Elements 6.0,7.0, 8.0 9.0
http://www.digitalanarchy.com/primatte/main.html

Green Screen Wizard, standalone and plug in versions
http://www.greenscreenwizard.co.uk/
 
Joined
Apr 30, 2005
Messages
542
Location
Fayetteville, OH
I've used Green Screen Wizard for family Christmas photos and have liked the results. CS 5 works well too but the specialty software is much faster.

I've learned to light the green screen evenly to make taking it out later easier.
 
Joined
Jun 9, 2006
Messages
1,851
Location
Rural Virginia
I have had good luck with Fluid Mask, which does not use the chroma key technology and works on any solid background. Typically I shoot against a while background when I am going to do a cutout. That way I can use the shot as-is (no funny colored background) or do a cutout. Also I avoid any color spill on the subject from the green or blue chroma key background.
 

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