prHow to cut out the image and change the background: First open Premiere and create a new project, import the video with a monochrome background and replace the background image; then drag the video to video track 2 and the background image to video track 1 respectively; finally Switch to the "Effect Controls" window of the video, set the newly added "Chroma Key", and use the "Color" eyedropper to select the background color in the video.
![How to cut out pictures and change the background in PR](https://img.php.cn/upload/article/202007/14/2020071410140226902.jpg)
Open Premiere, create a new project, import a video with a single color background and replace the background image
![159469271510274How to cut out pictures and change the background in PR How to cut out pictures and change the background in PR](https://img.php.cn/upload/image/189/616/261/159469271510274How%20to%20cut%20out%20pictures%20and%20change%20the%20background%20in%20PR)
![1594692728298837.png 1.How to cut out pictures and change the background in PR](https://img.php.cn/upload/image/672/526/688/1594692728298837.png)
##Drag the video to video track 2 and the background image to video track 1 respectively. (You can add two places to the video here and process only one for before-and-after comparison)
![1594692734832099.png How to cut out pictures and change the background in PR](https://img.php.cn/upload/image/805/805/619/1594692734832099.png)
Select a video and find the "Video Effect"-"key in the "Effect" window Control"-"Chroma Key", double-click to apply to the selected video
![1594692741189910.png How to cut out pictures and change the background in PR](https://img.php.cn/upload/image/107/337/775/1594692741189910.png)
Switch to the "Effect Control" window of the video and set the newly added "Chroma Key" , use the "Color" eyedropper to pick the background color in the video, and adjust the similarity and blending.
![159469274892093How to cut out pictures and change the background in PR How to cut out pictures and change the background in PR](https://img.php.cn/upload/image/837/135/810/159469274892093How%20to%20cut%20out%20pictures%20and%20change%20the%20background%20in%20PR)
The final effect is as follows.
![1594692754140037.png How to cut out pictures and change the background in PR](https://img.php.cn/upload/image/160/125/244/1594692754140037.png)
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