Feb 5, 2010

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Green Screen Use In Television

The appearance of cable TV saw the virtual explosion of television channels, broadcasters, production homes and content producers. The explanation being because satellite tv and direct to home platforms have indeed pushed the frontiers of TV broadcasting beyond all conceivable bounds and onto an international scale. It is no wonder that TV networks across the world exploit the employment of a Green screen.

One of the common strategies that are used in television program production is that of using a Green screen in the background of the studio where a selected programme is being shot. This is part of the method of chroma key which deals particularly with the removal of certain photos in the background of the shot and superimposing this with some other image, which is more sufficient for the production. For instance, one can employ a screen that’s green in colour behind a broadcaster who is reading out the weather stories. When spectators watch the programme, the green or blue screen as the case may be , is replaced with a weather map or scenes of certain towns or satellite images being shown instead.

A Green screen is extremely handy for chroma key uses, on account of the fact the normal human skin tone has very little parts of green in it. This provides help 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 became invisible when using the other coloured screen, making the effect quite strange and intensely tasteless and incongruous.

One of the main blessings of using a Green screen is that it is fairly easy to execute as well as being cheap. If one were to employ a enormous plasma or HDTV screen behind the broadcaster, the effect could be marvellous, but the price tag would be far bigger than using a green screen. In these days of depression, where cost management is the key, the dice is loaded for using less expensive options.

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

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