<p>chroma key choose a colour*drag) then take eye dropper and select background in the preview window</p>

CC BY-SA 3.0
2016-08-25T11:28:14.503Z
The OP's question shows that they have already tried simplistic approaches such as the one you suggest, and they are looking for more powerful solutions.  To prove you have a great answer, test the technique you propose, show the max, and let that be the proof that you have offered the correct answer.
Michael Tiemann
CC BY-SA 3.0
2016-08-25T11:02:36.207Z
2016-08-25T11:02:36.207Z
Ian
<p>I have a video and I need to mask out the background for it.</p>

<p><img src="https://i.sstatic.net/2CZx9.jpg" alt="Muppet Show number"><br>
<sup>A screenshot from the original video, credits to The Muppets Studio</sup></p>

<p>The <a href="https://www.youtube.com/watch?v=8N_tupPBtWQ" rel="nofollow noreferrer">video</a> has been shot with a <strong>still camera</strong> on a steady background. 
My goal is to mask out the background (e.g., everything not related to moving objects).<br>
I don't have the original sources, of course.<br>
It is also hard to recreate the background (I mean, to precisely match colors).</p>

<p>My approach, in theory, is the following:</p>

<ol>
<li>Collect a series of screenshots where different parts of background are visible (when objects move away);</li>
<li>Glue those parts into a background image <em>(see image below for a partial result)</em>;</li>
<li>Place the background into a layer and compute the <strong>color difference</strong> between the original video and the background;</li>
<li>Build a set of pixels for which:

<ul>
<li>the difference is <strong>nearly zero</strong> (within a certain color threshold occurring due to rounding/compression problems);</li>
<li><strong>and</strong> within a certain minimal area (so that individual pixels did not occasionally appear);</li>
</ul></li>
<li>Wrap those pixels into a key mask.</li>
</ol>

<p>Still, I'm stuck with <em>building a proper structure of layers</em> within Sony Vegas to accomplish my goal.</p>

<p><strong>How this can be done?</strong></p>

<p><img src="https://i.sstatic.net/TcsXe.jpg" alt="background"><br>
<sup>My backround attempt</sup></p>

<p>My environment is:</p>

<ul>
<li>Sony Vegas 12.0/x64, I'm not considering another software;</li>
<li>Basic set of plugins/filters, but I will also appreciate references to 3rd-party plugins, even the commercial ones;</li>
<li>Still, I would prefer a "clean" approach based on masking.</li>
</ul>

<p>Thanks a lot!</p>

CC BY-SA 3.0
2014-12-29T16:50:14.590Z
You seem to be heading down the right track, you might also have some luck with blending options, but I imagine you will need some kind of key that you can feed from a hidden track.  I don't have Vegas though, so I can't really help you with specific details other than to say you seem to be heading in the right direction and wish you the best.
AJ Henderson
<vegas-pro><chromakey>
Masking out the video background in Sony Vegas
Be Brave Be Like Ukraine
# Masking out the video background in Sony Vegas

(Asked by: username_0 on 2014-12-29)

I have a video and I need to mask out the background for it.

![Muppet Show number](https://i.sstatic.net/2CZx9.jpg)  
A screenshot from the original video, credits to The Muppets Studio

The [video](https://www.youtube.com/watch?v=8N_tupPBtWQ) has been shot with a **still camera** on a steady background.
My goal is to mask out the background (e.g., everything not related to moving objects).  
I don't have the original sources, of course.  
It is also hard to recreate the background (I mean, to precisely match colors).

My approach, in theory, is the following:

1. Collect a series of screenshots where different parts of background are visible (when objects move away);
2. Glue those parts into a background image *(see image below for a partial result)*;
3. Place the background into a layer and compute the **color difference** between the original video and the background;
4. Build a set of pixels for which:
   * the difference is **nearly zero** (within a certain color threshold occurring due to rounding/compression problems);
   * **and** within a certain minimal area (so that individual pixels did not occasionally appear);
5. Wrap those pixels into a key mask.

Still, I'm stuck with *building a proper structure of layers* within Sony Vegas to accomplish my goal.

**How this can be done?**

![background](https://i.sstatic.net/TcsXe.jpg)  
My backround attempt

My environment is:

* Sony Vegas 12.0/x64, I'm not considering another software;
* Basic set of plugins/filters, but I will also appreciate references to 3rd-party plugins, even the commercial ones;
* Still, I would prefer a "clean" approach based on masking.

Thanks a lot!

**Tags:** vegas-pro, chromakey

> **Comments:**
> **username_1**: You seem to be heading down the right track, you might also have some luck with blending options, but I imagine you will need some kind of key that you can feed from a hidden track.  I don't have Vegas though, so I can't really help you with specific details other than to say you seem to be heading in the right direction and wish you the best.  

---

## 1 answers

### Answer by username_2 on 2016-08-25. Score: -2

chroma key choose a colour\*drag) then take eye dropper and select background in the preview window

> **Comments:**
> **username_3**: The OP's question shows that they have already tried simplistic approaches such as the one you suggest, and they are looking for more powerful solutions.  To prove you have a great answer, test the technique you propose, show the max, and let that be the proof that you have offered the correct answer.  

---

