Adding a Filter or Blur Effect
If you want to blur a face in Adobe Premiere, first find a clip with a well-defined, preferably front-facing human face. Next, drag that clip to your timeline. Then, make a copy of that track, and drag it to your timeline. Place the track above your original clip. In Video 1, you will have your original clip, and your copy will be in Video 2.
Select your copy track, add a pixelate or blur effect to it. All of these effects are located within Effects palette. For example, you can add a Gaussian Blur to your video clip. To add a Gaussian Blur, follow the below procedures:
1. Go to Video Effects, and select Blur and Sharpen.
2. In this dropdown menu, select Gaussian Blur.
3. Set your Blurriness. Usually a setting between 25 and 30 will look fine. However, you can change this setting to whatever you want it to be.