The Green Screen Technique, refers to the mixing of video or photographic pictures shot in 2 different locations, with one serving as a background to the actor in the foreground giving a feeling that the actor is really, physically in that location. This process involves removal of one color to bring in another image which serves as a background for the topic.
The term Green Screen Technique is used because the green color is popularly used as a background since digital video cameras are equipped with image sensors which are much more sensitive to this color than other colors. This offers the cleanest mask, apart from the other facility of smaller light needed to light up a green screen which is also due to the image sensors' higher sensitiveness to this color. Green Screen methodology is employed in several scifi, action, and horror films which require a large number of effects to produce the illusion of transporting us to the world and times in which the story is working with.
Green Screen Technique is a boon to the cameramen, as he does not need to bother himself anymore about the background, as the screen itself is a short lived background, which may be employed to play with colours and designs, and make virtually anything a fact. Actually it offers a great suppleness to photographers, to bring their creativeness in making fantastic backgrounds and transport you to a legendary place and time in a most convincing demeanor.
Green Screen Technique is favored by pro filmmakers and photographers. Apart from being helpful for film makers, especially those that are working with scifi and horror films, which require lot of effects, this system is also used for still photography in print media and on the web. For portrait photography, this technique is most helpful. It can also serve as a help for study room dissemination of technical info, and photography hobbyists can use this technique to experiment with their creativity. You'll substitute the green screen with a solid colored, flat sheet, but since green is an essential color in the background, the sheet should also usually be green. After filming, in the post production stage you can eliminate the green background through special software and bring in a new image which is married to the topic you have filmed, which gives a superb feel of being in different milieu or times altogether.
Some significant factors on Green Screen methodology which should be remembered while using this Green screen Technique include proper lighting, and cameras of prime quality which can create sorcery through the green screen. Note that if you're using lighting in a non-professional demeanour, your product will end up with different shades and shadows on the screen. Green Screen Technique is being extensively utilized in commercial photography and film making these days, and with a number of software, you can bring your creativity into full play with this help.
More Information:
There are so many other websites offering various forms of advice on how to use green screen but a lot of them are not very detailed or concise. Before following these, make sure to check my own articles and reviews on
Green Screen LA and
Green Screen Los Angeles, where I do a lot of my consultation. Hope this helps!