It’s easy to clone areas of a video image by creating a Matte Key within Avid Media Composer.
Watch this Media Composer tutorial on how to create a Matte Key.
![](https://www.geniusdv.com/tutorials/wp-content/uploads/2022/01/Matte-Poly-Tool.png)
To start, select a clip segment in the timeline and then hold down the option/alt key and press the Up Arrow Twice.
![](https://www.geniusdv.com/tutorials/wp-content/uploads/2021/12/Screen-Shot-2021-12-30-at-8.18.36-AM.png)
This will duplicate the clip segment on top of itself two times.
![](https://www.geniusdv.com/tutorials/wp-content/uploads/2021/12/Three-Duplicate-Segment-Layers.png)
Next, make sure the V3 track is turned on, and the Monitor Icon is placed onto the V3 Track.
![](https://www.geniusdv.com/tutorials/wp-content/uploads/2021/12/Track-Selection-Monitor-Icon-2.png)
Navigate to Effects Palette and find the Paint Effect with the Image Category.
![](https://www.geniusdv.com/tutorials/wp-content/uploads/2021/12/Image-Paint-Effect-1.png)
Place the Paint Effect onto the V3 Segment within your sequence.
![](https://www.geniusdv.com/tutorials/wp-content/uploads/2021/12/Paint-Effect-on-V3.png)
Then enter into Effects Mode. This will bring forward the Effects Editor Window.
![](https://www.geniusdv.com/tutorials/wp-content/uploads/2021/12/Effects-Mode.png)
Navigate to the Effect Editor Window and click on the Poly Tool.
![](https://www.geniusdv.com/tutorials/wp-content/uploads/2021/12/Poly-Tool.png)
Change the Color of the Poly Tool Mask from Red to Black
![](https://www.geniusdv.com/tutorials/wp-content/uploads/2021/12/Change-Color-to-Black-1.png)
Draw a black mask around area to be cloned.
![](https://www.geniusdv.com/tutorials/wp-content/uploads/2022/01/Draw-Mask.png)
Then, click on the reduce button in the right corner (or CMD/CTRL K) so you can see outside to visible picture area within the Composer Window.
![](https://www.geniusdv.com/tutorials/wp-content/uploads/2022/01/Reduce-Frame-Size-1.png)
Navigate back to the Effect Editor Window and click on the Rectangle Tool. Change the color of the Rectangle Tool to White. Draw a white square around the entire visible picture area.
![](https://www.geniusdv.com/tutorials/wp-content/uploads/2022/01/White-Rectangle-Tool-1024x515.png)
After you Draw the Mask, it will cover over the Black Shape that you made earlier. Click on the Send Backward button within the Effect Editor Window
![](https://www.geniusdv.com/tutorials/wp-content/uploads/2022/01/Send-Backward.png)
The end result with be a Black and White Matte.
![](https://www.geniusdv.com/tutorials/wp-content/uploads/2022/01/Black-White-Mask.png)
Navigate back to the Effect Palette, and find the AniMatte Effect within the Key Category.
![](https://www.geniusdv.com/tutorials/wp-content/uploads/2022/01/AniMatte-1.png)
Hold down the ALT/OPTION key and drag the AniMatte effect onto the clip segment that’s on V3.
![](https://www.geniusdv.com/tutorials/wp-content/uploads/2022/01/Alt-Drag-AniMatte.png)
The last step is to resize your Matte within the Composer Window. That’s it!
![](https://www.geniusdv.com/tutorials/wp-content/uploads/2022/01/Re-Size-Matte.png)
If you enjoyed this tutorial, please subscribe to our YouTube Channel.