How to Use Adobe Premiere to do Green Screen/Chroma Key Editing
1) Import both the green screen footage and the footage you want to replace the green screen with into Adobe Premiere. (File>Import).
2) Place the video clip that will replace the green on the Video 1 Track on the Timeline.
3) Place the footage that contains the green screen on the Video 2 Track directly above the other clip.
4) Select the “Effects” tab next to the project tab where your imported clips are. Click on the arrow next to “Video Effects” so you expand the folder selection. Next, click the arrow next to the “keying” folder and drag the “color key” effect onto the video clip that has the green screen in it.
5) Using the “effects control” tab in the center of the desktop, expand the Chroma Key effect controls by clicking the arrow next to the effect.
6) From the Chroma Key controls, select the eyedropper icon and place the icon over the color box as viewed in the sequence monitor window in the upper right side of the Premiere desktop.
7) Expland the controls for “similarity” found beneath the “color” eyedropper control icon used in the previous step. Adjust the slider toward the right until the green is replaced by the video that you put on Track 1.
8) Use the “blend”, “threshold” and “cutoff” controls to fine-tune the key effect.
9) Save your project.
10) Render your project.
11) Save your project again.
If you’d like to practice, we have a free stock video clip that you can download with a green element ready to be chroma keyed out: