Think Bigger From Filmora User Guide

Adding Mosaic Effect to Blur Objects in Video

• Click the Effects tab at the top, find Video Effects, and click Utility. Find and drag the Mosaic effect to the track above the video. You can move it to the required timing in the timeline and adjust its duration.

• In the Preview window, drag the handles of the mosaic effect to adjust its size and position to get the results you want.

Mosaic Effect in Utility Category

• Click on the mosaic effect in the timeline to enter the Effect edit panel. You can choose the blur type from the presets, drag the slider to adjust the blur amount, and change mosaic opacity.

Adjust Mosaic Effect

Adding Mosaic Effect to Whole Video

• In the Effect tab, scroll down to the Video Effects category, and type “Mosaic” in the search box. Then a bunch of related effects will appear. Choose the “Pixelate Store” or the “Pixelate 2” effect.
• 

• Drag one of the pixelate effects to the track above the video.
• Click the pixelate effect in the timeline to adjust its SquareSize and Opacity.

Adjust Pixelate Mosaic Effect