Techniques In Using Green Screen | The Communication Blog

Saturday, January 9, 2010

Techniques In Using Green Screen

By Phil Guye

The Green Screen Technique, refers back to the mixing of video or photographic pictures shot in 2 different locations, with one serving as a setting to the actor in the foreground giving a feeling that the actor is actually, physically in that location. This process involves removing one of the colors to bring in another image that serves as a background for the topic.

The term Green Screen method is used because the green color is generally used as a background since digital video cameras are provided 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 lesser light needed to light up a green screen which is also because of the image sensors' higher sensitiveness to this color. Green Screen Technique is used in several science fiction, action, and horror flicks which require a large number of effects to provide the semblance 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 trouble himself anymore about the background, as the screen itself is a short lived background, which can be used to play with colors and designs, and make pretty much anything a reality. In reality it offers a great flexibility to photographers, to bring their creativity in creating wonderful backgrounds and transport you to a mythical place and time in a most convincing manner.

Green Screen Technique is favored by pro filmmakers and photographers. Aside from being useful for flick makers, especially those that are working with science fiction and horror films, which need lot of effects, this method is also employed for still photography in print media and online. For portrait photography, this method is most helpful. It could also serve as a help for lecture room dissemination of technical information, and photography hobbyists can use this system 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 invariably be green. After filming, in the post production stage you can dump the green background through special software and bring in a new image which is married to the subject you have filmed, which gives an excellent feel of being in different milieu or times altogether.

Some critical factors on Green Screen methodology which should be remembered while using this Green screen methodology include correct lighting, and cameras of high quality which can create magic through the green screen. Note that if you're using lighting in a non-professional demeanor, your product will end up with different shades and shadows on the screen. Green Screen Technique is being extensively used in commercial photography and film making these days, and with a number of programs, you can bring your talents into full play with this aid.

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