From the course: Premiere Pro: Mastering Effects and Transitions

Keying out a green screen - Premiere Pro Tutorial

From the course: Premiere Pro: Mastering Effects and Transitions

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Keying out a green screen

- [Instructor] In this movie, we're going to take a look at keying out a green screen inside of Adobe Premiere Pro. I'm here at my chapter 03_04 sequence. And I'm going to head to my Effects panel, doing a search at the top for the word ultra. And I'll find the ultra key in the keying category, which is what we can use that's natively inside of Premiere Pro for green screens. I'm going to apply that to a clip and then press Shift + 5 to reveal the ultra key effect applied. The way it works is that we need to choose a key color. So let's grab the eyedropper and sample a little bit of green in the shot. I find that usually sampling somewhere close to the subject is a great place to start. Let's twirl down the matte generation, as well as matte cleanup. The matte generation will allow you to play around with values further, such as the highlights and the shadow, along with the tolerance of your initial selection. Inside the matte generation, we can tweak the key color that we originally set. Along with this, we can also choose a setting for how we're dealing with our key. So right now it's set to default, but there is an aggressive setting as well, which you can see does a better job at keying out the majority of the shot. Now, if I press Command + Z to undo the default, I want you to take a look at the controls in both matte cleanup and matte generation. The preset pushes some of these values just a lot further to get a better end result. Now, continuing with this, I'm also going to play with the pedestal to see if I can remove the majority of the green. And so far, the shot is looking pretty great. Ideally, I would want to check with a piece of footage here in the background to make sure that I'm getting overall great results. But one thing that I definitely do have to deal with right away is the green that's spilling on my subject's hair. Ideally, in the spill suppression category, which we can take a look at, if I twirl up my matte generation and matte cleanup settings is our ability to increase the spill to neutralize that color green. If I push it too far, it's going to end up at a magenta color. But at the same point in time, we're looking at this and hopefully using this with our video scopes in order to get the best end results. We could also apply further color correction of our green screen by adjusting the saturation of our clip as well as the overall hue and results. But when it comes to color correction, it may be better that we use additional Lumetri panel correction to perfect our green screen and the shot that's behind it. But using the ultra key is the keyer here to use inside Premiere Pro. You could further enhance options as well as your ability to look at your matte in different ways by going inside of After Effects and using the keyer that's inside of their key light. But that's how you key out a green screen inside of Adobe Premiere Pro with ultra key.

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