Green Screen: How To Use Effectively

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Green Screen: How To Use Effectively

Sunday, November 15th, 2009 Subscribe To Our Feed

The arrival of satellite television saw the virtual explosion of TV channels, broadcasters, production houses and content producers. This is because satellite TV and direct to home platforms have indeed pushed the frontiers of television broadcasting beyond all conceivable boundaries and onto a worldwide scale. It is little wonder that TV networks across the world make use of the use of a Green screen.

One of the common methods that are employed in television program production is that of using a Green screen in the background of the studio where a particular programme is being shot. This is an element of the strategy of chroma key which deals specifically with the removal of certain pictures in the background of the shot and superimposing this with some other image, which is more suitable for the production. As an example, one can use a screen that is green in colour behind a broadcaster who is reading out the weather news. When viewers watch the programme, the green or blue screen as the case might be is replaced with a weather map or scenes of certain towns or satellite images being shown instead.

A Green screen is especially helpful for chroma key uses, on account of the fact the normal human skin tone has little parts of green in it. This helps in high standard of image superimposition as well as the replacement of background, without interfering much with the general view of the broadcaster who is standing in the foreground. If there had been any green hint or tone in human skin, parts of the body would have become invisible when using the other colored screen, making the effect quite peculiar and intensely inappropriate and incongruous.

One of the main advantages of using a Green screen is that it is fairly straightforward to carry out as well as being cost effective. If one were to employ a huge plasma or HDTV screen behind the broadcaster, the effect could be wonderful, but the cost would be far larger than using a green screen. In nowadays of recession, where cost management is the key, the dice is loaded for using cheaper options.

One can simply make a Green screen that may be utilized in TV programme production. For this, something as simple as a table cloth can be employed. This fabric has to be regularly painted, so that there are no smudges or uneven areas that would stand out when the show goes on air. One can also use a plain wall that’s evenly painted in green to form the colored background. One of the tips to remember when using such a screen is that if the background image is one of trees or forests, green is a more suitable color to use than blue for the background, while if the image is of the sea or the sky, green would not be so apt. Using a green screen is therefore an efficient means of utilizing chroma key method in TV programme production, which is preferred due to its simplicity and inexpensiveness.

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