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How to remove blur from certain areas of the video?

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Alec GemmellHow to remove blur from certain areas of the video?
by on Apr 11, 2011 at 9:25:07 pm

Hi guys, I'm really new to after effects and I was just wondering if there was any type of mask effect or something that I could use to not blur a certain area of the video (area as in position on screen, not as in area in the timeline) and then feather the edges of the mask thing to make it a nice and smooth transition.


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Dave LaRondeRe: How to remove blur from certain areas of the video?
by on Apr 11, 2011 at 9:46:34 pm

If you start with NON-blurry footage, the answer is yes. If you start with blurry footage, it's darned near impossible. I wouldn't even try it, I'd reshoot.

But let's say it's good. You start by making an adjustment layer:
http://help.adobe.com/en_US/aftereffects/cs/using/WS3878526689cb91655866c11...

Turn on the Show Masks switch at the bottom of the comp window, highlight the adjustment layer, and make a mask in the desired shape on the adjustment layer:
http://help.adobe.com/en_US/aftereffects/cs/using/WS37445DB7-352A-42e9-BACB...

Make a Mask Path keyframe and set the Mask Mode to subtract:
http://help.adobe.com/en_US/aftereffects/cs/using/WS2A5AB855-443A-48d2-83F6...

To soften the edge of the mask, add some Mask Feather:
http://help.adobe.com/en_US/aftereffects/cs/using/WS0FF1DD83-1F3B-43c7-812F...

....and start small. A value of 5 or so. You can always change it later. Now add one of the blur effects to the adjustment layer; I like the Box Blur. Blur to taste. Animate the the mask if necessary by moving the timeline cursor, then moving and adjusting the mask. Using the Free Transform tool will help:
http://help.adobe.com/en_US/aftereffects/cs/using/WS573BBF18-A421-456d-A44D...


.....and if this is all Greek to you, start here:
http://blogs.adobe.com/toddkopriva/2010/01/getting-started-with-after-eff.h...

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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Alec GemmellRe: How to remove blur from certain areas of the video?
by on Apr 11, 2011 at 9:48:28 pm

Thank you! It worked perfectly, that's pretty useful. I suppose if necessary I could use that same type of thing with other effects?


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Dave LaRondeRe: How to remove blur from certain areas of the video?
by on Apr 11, 2011 at 10:02:51 pm

You can, but you have to be careful with adjustment layers: they affect every layer of video below them. Yours was a simple case. Things in AE are rarely simple.

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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David willsonRe: How to remove blur from certain areas of the video?
by on May 9, 2016 at 10:56:03 pm

Please can you tell me how did you do that ?
Step by step (with pictures)


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