The arrival of satellite TV has seen the virtual explosion of television channels, broadcasters, production houses and content producers. The reason is because cable TV and direct to home platforms have indeed pushed the frontiers of TV broadcasting beyond all conceivable limits and onto a worldwide scale. It is not surprising that TV networks across the globe utilize the use of a Green screen.
One of the common systems that are used in television program production is that of using a Green screen in the background of the studio where a selected program is being shot. This is a part of the method of chroma key which deals in particular with the removal of certain pictures in the background of the shot and superimposing this with some other image, which is more acceptable for the production. For example, one can employ a screen that's green in color behind a broadcaster who is reading out the weather stories. When viewers watch the program, the green or blue screen as the case may be , is replaced with a weather map or scenes of certain towns or satellite pictures being shown instead.
A Green screen is particularly helpful for chroma key uses, on account of the fact that the standard human skin tone has little elements of green in it. This provides help in high quality 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 colored screen, making the effect quite peculiar and highly inappropriate and incongruous.
One of the main advantages of using a Green screen is that it is fairly straightforward to execute as well as being cost effective. If one were to employ a huge plasma or HDTV screen behind the broadcaster, the effect may be wonderful, but the price tag would be far greater than using a green screen. In these days of depression, where cost management is the key, the dice is loaded for using cheaper options.
One can easily make a Green screen that can be employed in television program production. For this, something as simple as a table cloth can be employed. This material has to be uniformly 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 is uniformly painted in green to form the colored background. One of the suggestions 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 effective means of utilizing chroma key system in television program production, which is popular due to its simplicity and inexpensiveness.
Author Resource:
There are a lot of other websites offering different forms of advice on how to use green screen but a lot of them are not very specific or concise. Before following these, make sure to check my own articles and reviews on Green Screen and Los Angeles Green Screen , You can also reach me at 1-323-851-3825 or phillipguy@hotmail.com
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