Many people use of chroma keying in green screen process for many different reasons. It has its place in image placement in photography and when films are edited to put characters, objects and scenes where they would not be. To show you how this is done I have included examples in this article to give you a better understanding.
Another name for chroma keying is colour keying. The reason for this is that the process is about putting two images together while taking away either a whole or portion of colour so that the picture or frame can be edited.
There are many cases where chroma keying is used in this day and age. You may be aware that a screen is used during weather reports which are why it is able to change as though a large television set were behind the weather reporter; however it is just a blank screen which has the images added later. Another circumstance where this method is used is during films that have both animated characters as well as people.
This is great for putting a person or character on the moon or in the sun without them actually having to go there. You can put characters into a film that have never set foot on the set and all that is needed is clever lighting, a computer and a green backdrop.
So that the computer can understand what you want it to do, the pixels (each and every one) are given codes. This could be anything from one letter, symbol or number upwards. In addition to this so that the programme is able to understand whether you want their to be a change to the person or image that is really there or to the green background codes are allocated to them too.
The alternative references used can depend on two things. That is the programme that you want to use as well as if the programmer wishes to change them. So that the image of choice can be applied to replace the screen these codes are very important.
As film once used so predominantly in photography is used less and less in favour of digital the green backdrop is used more than the blue one. This is because it gives you a much clearer image allowing better graphics whether the image placement is used in gaming, the latest film or even advertising. If it is necissary for the colour green to be either worn by a person or the image you want to merge the colours will clash, so you do not get the desired result. In this case you should use a blue or red screen.
To learn about chroma key production studio, you should look them up in google. Also, you should acquire more knowledge about the green screen that knowledge is stored in.