Remove background and use chroma key effect
from the official website.
Background removal is the process of extracting or separating an object from its original background in a video. This technique allows you to replace the existing background with a new one or remove it entirely. Background removal is particularly useful when you want to isolate people, objects, or specific elements from their surroundings for various reasons. One common application of background removal is green screen compositing, where a subject is filmed in front of a solid color (usually green), and the color is later replaced with an image or video in post-production. This technique is commonly used in movies and television shows to create fantastical environments, visual effects, or seamlessly combine different footage. Background removal can also be applied to remove unwanted distractions, such as busy or noisy backgrounds, to make the subject stand out more effectively.
To eliminate a specific background from your selected video clip in Movavi Video Editor, navigate to the Timeline and choose the clip you wish to edit. Next, access additional tools by clicking on More tools within the left-hand sidebar. Within the Video tab that appears, choose Background removal.
You may then select the Quick or Precise method depending on your priority - speed or accuracy. Keep in mind that background removal is only applied to the visible portion of the clip displayed on the Timeline.
Finally, click Remove.
To revert to the original background, simply press the Reset button.
How to use chroma key effect
The Chroma Key effect, also known as chroma compositing or color keying, is a technique used in video editing to remove a specific color from video footage, making it possible to replace that color with another background or visual element. By isolating a color hue, the Chroma Key effect allows to create unique visual effects, such as removing a green or blue screen backdrop and replacing it with other images or videos. Chroma keying works by analyzing the chrominance (color information) of a particular hue within a video clip. This technique is most effective when using backgrounds that have solid, uniform colors like green or blue since these colors provide clear distinction and make it easier for the effect to isolate and eliminate the selected color accurately. Film and television productions often employ chroma keying to add visual effects, such as creating flying sequences or placing actors in different environments. Journalists conducting remote interviews can use a green screen, allowing them to appear as if they are on location, even when interviewing from a studio. Chroma keying is commonly used in video games and virtual productions to create immersive environments and seamlessly blend real-life actors with computer-generated backgrounds.
First, add your video or image clips (foreground and background components).
Next, move the foreground video to the extra video track.
To ensure the foreground completely covers the background, set its Position to Overlap within the Clip Properties window.
Navigate to the left-hand sidebar and click on the More Tools icon. Select Chroma Key under Video Editing.
With the Chroma Key tool activated, hover your cursor over the foreground video in the player and click on the specific color that needs to be removed. This action will make that hue transparent.
The changes will be applied automatically.
You can fine-tune the result of the Chroma Key effect using the following settings:
Tolerance: Adjust this slider to determine how closely related shades of your selected color should also be eliminated.
Noise: This setting helps refine the edges of the objects within the foreground clip, reducing any unwanted visual artifacts.
Edges: Modify the thickness of the object's edges for a more precise chroma keying result.
Opacity: Use this option to adjust the transparency level of the background image or video that will be revealed once the selected color is removed.
