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Tuesday, September 30, 2008

Motion Quick Tip: Cleaning Up With Crop

Mark Spencer | 09/30- 06:06 AM

Getting Rid of Those Dirty Edges

When you blur elements in Motion, sometimes your edges can become “tainted” - here’s how to fix them quickly and easily.

Here’s a typical example: you have a nice image that you want to use as a background for your project.

Since it’s a background, you don’t want it to distract from your foreground elements, so you add a Gaussian blur filter and crank it up. But then you notice the edges have become dark.

What’s happening is that the blur filter is not only blurring the image; it’s also blurring the empty black space outside the Canvas, bleeding it into the image. While this can be a nice look in some cases, what do you do if you don’t want it?

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steve martin | 10/10- 10:09 AM

Aha! Good to know. I’m used to that function having a different name, such as Blur Alpha or Repeat Edge Pixels. Thanks!

Posted by Chris Meyer  on  09/30  at  06:40 AM

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