blurring only non-moving items in video?

[Michael Szalapski]

Sure, rotoscope the moving items!

But I assume you mean besides that…there is a plug-in that might do that. If you have a blank plate without any of the moving items in it (or you can create one) then you can try using a difference matte. (I think that’s what it’s called, but I’m not by my AE machine this morning.) Pray that your moving items don’t share similar colors with the background or you will be rotoscoping.

– The Great Szalam
(The ‘Great’ stands for ‘Not So Great, in fact, Extremely Humble’)

No trees were harmed in the creation of this message, but several thousand electrons were mildly inconvenienced.

[Jon Geddes]

Or you could apply a fast blur (or any kind of blur) to all the layers, then apply this expression to the Amount of the blur:

S = thisLayer.transform.position.speed;
BlurAmount = 15;
if(S>0){
0;
}else{
BlurAmount;
}

That would cause the layer to not be blurred once it started moving.

Jon Geddes
http://www.precomposed.com

[Jon Geddes]

Whoops… I just realized you said video, meaning all your objects are in a single layer, in which case this expression would not work. There are some plugins that can create a matte from moving/non-moving objects. Boris FX has one I believe as part of their collection. You might be able to duplicate the footage, then apply the matte (might need to be precomposed and possibly altered to be black/white) as a track matte to an adjustment layer which has a blur applied to it.

Good Luck.

Jon Geddes
http://www.precomposed.com

[Peter Litwinowicz]

Or simply use our ReelSmart Mtion Blur that tracks the moving parts of an image and applies blur in the calculated direction and amount that each pixel is moving (if no movement is calculated, no blur).

Demo version located in the Downloads subsection for RSMB on our website: https://www.revisionfx.com/products/rsmb/

The $89.95 version of the plugin unlocks the “regular” plugin, which will perform the blur based on calculated motion. Note: there are 2 plugins in the Pro version that provide more features, and is prices at $149.95… but I don’t believe you need that for what you are describing.

Pete Litwinowicz
https://www.revisionfx.com

[Jon Iverson]

Thanks, Pete, but I am trying to blur non-moving and *not* moving.

Jon