Before changing the video background, you need to prepare two kinds of materials:

1. Prepare a portrait short film with a green screen or a blue screen, but it is not difficult to shoot it yourself. Hang a green (or blue) background cloth on the wall and lay the hanging part on the ground. Shoot a short film of a character in the center of a green (or blue) background. ?

2. Prepare a high-resolution picture, which is clear, and what kind of picture you need with the video, as long as you want to match it, so that you can see the effect after fusion. ?

3. After preparing these two materials, open the running software. In the main interface of the software, select Insert Background and click Browse to find and select the background image material in the computer directory. If no pictures can be displayed in the directory, select "still image files" as the file type below so that picture files can be displayed. As shown in the following figure:

4. As in the previous step, select the video file of "Input Clip" and open "Browse" to find and select the video material in the computer directory. If your video material can't be displayed in the directory, the video format must be one of "avi, mov, mpeg, MPG, MXF, M2T, MLV, MPE, IVF, SMV" in the file type, otherwise the video can't be added. As shown in the following figure:

5. After the video and background picture materials are successfully added, click the key mark under the preview window. First, click the key points in different positions of the green background in the preview screen to remove the background color (pay attention to selecting more places, especially the points with uneven background color).

6. After the key point has been selected, select the first key menu in the menu bar below, click Enable below, and the preview window on the right will show the picture after the green background of the video has been cut off, just like the picture below shows that only the cat in the video is left. If the display can't be enabled by clicking on the key below, click on the "One-key Keying/Application Point" preview window in the "Toolbox" at the top to display the picture after the green background of the video has been cut out.

7. After the green background is cut off, it is inevitable to leave some text watermarks in the original video, such as icons. At this time, you can erase the watermark with the erasing tool. If you want to erase it in the preview screen on the left, the preview window on the right will show the erased effect. If you find that the background has not been cleaned, you can adjust the edge reduction, edge softening, edge sharpening and sharpening range under reprocessing in the Keying menu. As long as these parameters are adjusted, the background can be removed.

8. The next step is to adjust the position and size of the cat in the video. Move the position of the cat in "Coordinates in Scene" in the "Scene" menu, and "Orientation in Scene" can set the orientation direction of the cat, and any angular orientation can be set. Move left and right in "Size in Scene" to set the size of the cat.

9. If everything is set and there is no problem, you can output the video. In the "Output" menu, click "Browse" to select the folder directory where the video will be saved in the save path window. You can rename the video and click "Save". Click "Save Output" as the last step.

1. After clicking "Save Output" in the previous step, the progress of the output will be displayed in the progress area. Remember not to close the software at this time. You can reduce the interface of the software, and the output video will be completed after the progress bar is displayed in full green!

11. After the output is completed, find the video in the folder where the video is saved, and play the video with a video player, such as Storm Video, to play the converted video.

video replacing the background is fun, and can be used to make interesting videos. You can change the background of the video at will, whether it is dynamic or static. You can also insert music into the video. This software is not only better than the general editing software, but also has a good effect!