Why do you need to blur someone's face?  To protect their identity or privacy, or if they didn't sign a "talent release" which allows you to broadcast their likeness.  This comes in handy for anything you need to blur out, really: maybe you need to censor an offensive word on someone's T-shirt, or they have branding you can't show on your broadcast.  Whatever the case may be, learning how to blur can be a handy tool when you're not sure if something should be shown in your video.  Here's how to do it in Adobe Premiere.

Blur Stuff in Premiere

  • Find the clip with the face you need to blur in the timeline.
  • You'll need to duplicate the clip and place it just above the original clip.  To do this, click on the original while holding down the Alt/Option key, place the silhouette above the clip and release.
  • Double-click your copy.
  • Go to the Effects Tab.  Search for and apply the Mosaic effect (it will be under Video Effects/Stylize).
  • Search for the Crop effect and apply it to the duplicate clip (under Video Effects/Transform).
  • You've got one more effect to apply: the Gaussian blur (under Video Effects/Blur & Sharpen).
  • After all three effects are applied, go to your Mosaic effect and adjust the horizontal and vertical settings, where you can make the blocks big or small.
  • Go to your Gaussian blur effect and increase the blur in order to make your blocks smoother.
  • Go to your Crop effect and make sure all the toggle animation buttons are highlighted, which creates a keyframe that allows you to move your effect when the person's head moves.
  • Click the square box next to the word Crop for a bounding box to appear around the footage.
  • Adjust the box so that the effect only covers the subject's face.
  • Now scroll through your footage every couple of frames so that you can adjust the blur to stay on the subject's face.  Keep all of your keyframes enabled because you want it to follow the subject throughout the clip.

Like these tips?  Here are some more great things you can do in Premiere: