From the course: Media Composer 2019 Essential Training: 110 Fundamentals 2

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Refining the edges of the matte

Refining the edges of the matte - Media Composer Tutorial

From the course: Media Composer 2019 Essential Training: 110 Fundamentals 2

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Refining the edges of the matte

- [Instructor] When you feel that you're satisfied with the settings you've chosen for picking out the color and for applying spill suppression, there's another adjustment you can make that might well improve the results and it's this matte processing option. I'm going to just scroll up and enable show alpha because it'll reveal what we're doing here the most clearly I think. In this menu we can specify whether we're going to erode, dilate, or blur the resulting matte, that's the resulting image, that's dynamically produced by this effect when we drag this matte blur slider. It's kind of an amount slider and I'll start off with erode, that's the default. Sort of drag this over. You can see we start to pull in on the key and soften it. This isn't choosing a different range of colors. This is actually changing the shape and the edges of the resulting key. This matte that we're seeing on the screen. If I change this to…

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