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Friday, February 26, 2010

How To Efficiently Use Green Screen In Television Production

By Phillip Guye

The advent of satellite television has seen the virtual explosion of TV stations, broadcasters, production houses and content material makers. The reason being cable TV and direct to home systems have indeed pushed the frontiers of tv broadcasting beyond all imaginable limits and onto a global scale. It is no wonder that TV networks worldwide employ the use of a Green screen.

One of the popular techniques that are utilized in television program production is those of employing a Green screen in the backdrop of the studio where a specific program is getting taken. This really is a part of the strategy of chroma key that deals particularly with the removal of certain images in the background of the shot as well as superimposing this with another picture, which is more suitable for the production. For example, one can work with a screen that's green in color behind the broadcaster who is reading out the weather report. When audiences view the programme, the green or blue screen as the case may be, is actually replaced with a weather map or scenes of certain cities or satellite images.

A Green screen is specially useful for chroma key uses, on account that the conventional human skin tone has very little elements of green in it. This helps in the better level of quality of picture superimposition plus the alternative of background, without interfering much with the basic image of the broadcaster who is standing up in the foreground. If there had been any green shade or tone in human skin, elements of the body would seem invisible when utilizing the other coloured screen, making the effect quite strange and very inappropriate and out of place.

One of the primary advantages of using a Green screen is that it's pretty easy to implement as well as being cost effective. If a person were to make use of a huge plasma or HDTV display behind the broadcaster, the impact may very well be marvellous, but the cost will be far greater than that of using a green screen. In these days of downturn in the economy, cost management is the key and the dice is loaded in favour of utilizing cheaper choices.

One can effortlessly make a Green screen that may be used in TV programme production. With this, simple things like a table cloth may be used. This fabric has to be uniformly painted, so that you will find no streaks or uneven areas that would stand out when the show goes on air. One can also work with a bare wall that's equally painted in green to create the coloured background. Among the tricks to keep in mind when utilizing trees or forests as the backdrop picture is not to use green. Green is known as a more acceptable color to use if your background is the picture of the ocean or of the heavens. Using a green screen is therefore a highly effective way of utilizing chroma key technique in TV program production, which is popular because of its simplicity and inexpensiveness.

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