Im a beginner to video editing, kindly help me to select (free select, as like in Adobe Photoshop) particular portion of a video, to merge with another video?

  • Joy, it is not clear what you are asking. What are you trying to accomplish? Are you talking about wanting to select some portion of a video to copy from one video to another while ignoring the rest? If so, how do you want to track it from one frame to another. Is it stationary or something that moves around? If this is what you are talking about, it is not easy in most cases.
    – AJ Henderson
    Apr 4, 2014 at 14:59
  • Yeah..@Henderson you have understood my query very exactly.. yes i need to select some portion of the stationary video., and also suggest me some tips for motion video also.
    – Joy Rex
    Apr 4, 2014 at 17:31
  • One of the best software to change a selected area in a video clip is Imagineers mocha.Using adob after effects it can creat a new video file with the help of mocha.
    – Gireesh KS
    Oct 20, 2017 at 11:21

3 Answers 3


To build on AJ's answer in a different direction, you may want to look at After Effects, which is a popular compositing tool. In After Effects, you can use the pen tool (somewhat like the lasso tool) to create a custom shape. With that shape, you can create a mask for the video. This mask can then show only the video inside of the shape.

Further, the mask can change over time with your video. If the subject of your first video moves, you can adjust the mask's shape as well. In other words, the mask can be animated, though this process can take a lot of time.


If the element you need to put on the video doesn't move and the shot you are putting it in doesn't move, the best bet is to actually use Photoshop to extract the object you want to place in another video and put it in a file format that supports a transparent background (TGA, PSD, etc.) You can then import it to Premiere and place the image wherever you want in the frame using the Motion effects settings to define the size and placement.

If the video you are placing it in is not stationary, then it will be necessary to perform motion tracking on the video you want to place the image within. This is much more complicated and is generally done in something like After Effects.

  • It sounds like Joy might be looking for just a basic overview of video compositing? It's hard to tell how simple or advanced the request is.
    – ZeroFlux
    Apr 4, 2014 at 17:55
  • @ZeroFlux - yeah, agreed. That's why I was trying to flush it out a bit more. I decided to limit my answer to what can be done easily in Premiere and what seems to match with the simple situation he described, but I think your answer adds value too for the more complex case.
    – AJ Henderson
    Apr 4, 2014 at 19:18

Unless I'm misunderstanding your question, I would try a Garbage Matte effect (either 4, 8, or 16-point). Stack the two video clips on the timeline (e.g. one video clip on track V1 and the other on V2). Drag n Drop the Garbage Matte effect (8-point is a good starting point) on to the top video clip. Activate the Garbage Matte effect in the Effect Controls window and then drag the points to select the portion of the top clip video that you want.

Only the part of the top clips video that lies within the bounds of garbage matte markers will show through. The rest of the video will be the bottom video clip.

This is reasonable video on the subject. He basically merges two video clips of the same scene with different exposure levels to get a single video with good exposure throughout:

Search youtube for Garbage Matte premiere and you will find several helpful videos on it.

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