Chroma key is also known as green screen production.The production is the process whereby creation of images is done where the background or other objects which can be made transparent .Therefore this enables you to replace the background with a image.Therefore by filming a subject in front of a green screen the background can be cut out and replaced with another image.
An example of the usage of chroma key is the weather as the weather will not be standing in front of the map.Chroma key is also used in movies to enable the characters within the movie to appear flying or jumping buildings etc.Chroma keying therefore physically presents you in a place not in through the process of firstly producing a picture in a picture and then using editing software in order to make the images imerge with each other.
The two main colours used are green and blue as they are the furthest away from skin tone.In order to make the green screen operate correctly lighting is used in order to illuminate the green.Chroma key can also be created using video and video video on image.
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