<p>In your sequence, place a still frame of the background with your footage place above. </p>

<blockquote>
  <ul>
  <li>V2: Footage</li>
  <li>V1: Still frame of background</li>
  </ul>
</blockquote>

<p>In the Effects panel, find Video Effects > Keying > Difference Mask. Drag this effect onto your footage (the top-most track). </p>

<p><a href="https://i.sstatic.net/zIc9I.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/zIc9I.png" alt="enter image description here"></a></p>

<p>In the Effects Control panel, set the 'Difference Layer' to match the track with the still frame.</p>

<p><a href="https://i.sstatic.net/hQWiD.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/hQWiD.png" alt="enter image description here"></a></p>

<p>Hide the still frame (bottom track) using the 'Toggle Track Output'. The background will now be transparent.</p>

<p><a href="https://i.sstatic.net/bZT6I.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/bZT6I.png" alt="enter image description here"></a></p>

<p>Inconsistencies of lighting, shadows and movement of the background will have a big effect on the quality of the outcome. </p>

<p>Avoid casting shadows on the background by keeping the scene well lit. Be aware of objects in the background moving. </p>

<p>If necessary, use a combination of color keying (a wall with a solid colour that contrasts with the subject) as well as masks to hide parts of the footage where no movement occurs.</p>

CC BY-SA 4.0
2018-11-18T23:42:27.030Z
2018-11-21T13:29:32.177Z
2018-11-21T13:29:32.177Z
Ambo100
<p>In example,
I have this exported Image from a video001</p>

<p><a href="https://i.sstatic.net/d1ijk.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/d1ijk.jpg" alt="enter image description here"></a></p>

<p>then someone enter to the room without move anything from the image and then leave.</p>

<p>There is a way to use the image as a keymap to remove every match from the video001 with the image?</p>

<p>The result should be only the differences between the video001 and the image.</p>

<p>I use Adobe Premiere Pro CC 2018, but if there is other tools to obtain that result, tell me please.
Thanks! :)</p>

<premiere>
How can I remove the background of a video if the background is still?
Armando
# How can I remove the background of a video if the background is still?

(Asked by: username_0 on 2018-10-20)

In example,
I have this exported Image from a video001

[![enter image description here](https://i.sstatic.net/d1ijk.jpg)](https://i.sstatic.net/d1ijk.jpg)

then someone enter to the room without move anything from the image and then leave.

There is a way to use the image as a keymap to remove every match from the video001 with the image?

The result should be only the differences between the video001 and the image.

I use Adobe Premiere Pro CC 2018, but if there is other tools to obtain that result, tell me please.
Thanks! :)

**Tags:** premiere


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## 1 answers

### Answer by username_1 on 2018-11-18. Score: 4 | Accepted answer

In your sequence, place a still frame of the background with your footage place above.

> * V2: Footage
> * V1: Still frame of background

In the Effects panel, find Video Effects > Keying > Difference Mask. Drag this effect onto your footage (the top-most track).

[![enter image description here](https://i.sstatic.net/zIc9I.png)](https://i.sstatic.net/zIc9I.png)

In the Effects Control panel, set the 'Difference Layer' to match the track with the still frame.

[![enter image description here](https://i.sstatic.net/hQWiD.png)](https://i.sstatic.net/hQWiD.png)

Hide the still frame (bottom track) using the 'Toggle Track Output'. The background will now be transparent.

[![enter image description here](https://i.sstatic.net/bZT6I.png)](https://i.sstatic.net/bZT6I.png)

Inconsistencies of lighting, shadows and movement of the background will have a big effect on the quality of the outcome.

Avoid casting shadows on the background by keeping the scene well lit. Be aware of objects in the background moving.

If necessary, use a combination of color keying (a wall with a solid colour that contrasts with the subject) as well as masks to hide parts of the footage where no movement occurs.


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