In Figure 1c, we apply a gaussian blur to the foreground image, obscuring the rest of the class. In Figure 1b, we’ve duplicated the footage onto a second track and used an oval mask to isolate the one face we want to highlight. Let’s start by looking at how you can combine a simple blur filter with your software’s matte capabilities to focus the viewer’s attention on an individual figure in a scene.įor our example, we’ll take a typical shot of a class of elementary school kids and use a blur filter to single out one face for use in a title sequence.įigure 1a shows our young star standing in the second of three rows of kids.
You can blur inside a matte, blur after applying a color filter or blur along the border of two separate video layers in order to make them look more like a single, seamless composite.Īs with corrective filters, special effects filter possibilities are so vast that we’ll just study a couple of common examples to show how you might use them to enhance your footage. Within most of those choices, you have control over parameters such as direction, amount, opacity and duration of the blur. Not only can you apply a blur filter to your scene, you can choose between simple blurs, motion blurs, gaussian blurs, ripples, wind and dozens of other interesting blurs. The blur filter, which is built into nearly every editing package isn’t far removed from the old-fashioned photography trick of putting a clear glass plate in front of the camera’s lens, then smearing it with petroleum jelly for a blurred halo effect around a portrait shot.īut where the traditionalist had a small number of blur effects to choose from, today’s video editor has dozens. Some of these filters mimic techniques that traditional photographers and videographers were able to use long before the modern electronic era. In a typical video editor’s filters menu, you’ll find such choices as Blur, Border, Distort, Perspective and dozens more.Īll special effects filters let you alter some aspect of your original shot in order to benefit your video. This month, we’ll examine special effects filters.Įven more than corrective filters, special effects filters come in an almost mind-boggling assortment. Last month, we took a look at corrective filters those small programs that let you fix unexpected problems in your footage.
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