Keying Process

Keying for Green Screen

Not knowing at the start when Adam introduced us to what Keying is for Green Screen, I was very confused on what it meant and what you actually do with it but when Adam went over it with me it makes more sense which has helped me a lot to understand more about it and why it's important.

Keying is basically helping you fix faulty problems with you videos or your green screen when it comes to editing. When I started to edit the green screen shots, I firstly went to Keying > keylight (1.2) to start. 

From watching tutorials on You Tube to help me, I clicked on Screen colour eye drop then clicked on my video and it made the background go black instead of green. The reason why I have done this is because as you can see from the picture below, there's quite a lot of noise shown so my job is to get rid of that.

After I have done that, I then bumped up the screen gain to make the noise disappear and to make sure that my background now is completely black. In order to know if the noise has gone, I went and changed my view and clicked on 'scale' instead of 'final view' as there shows the amount of noise that I need to get rid of.

Finally, I went onto Screen Matte and started to decrease the white area to get it perfectly keyed. The picture below now shows that there is no noise at all in my video clip and that I'm now ready to edit to put the background on the green screen.

Learning and knowing now what keying is has definitely helped me as I can see so much improvements made on the clip now and hardly no noise shown. This is very useful to use all time when I do more green screen in the future.