Censoring license plate in a long video I'm editing a video recorded in a car workshop. The video is about 30 minutes long.

In the background there is a car whose license plate has to be hidden. Unfortunately, the camera moves a lot so it's not possible to censor many frames at a time.

I'm censoring using a mosaic effect over the plate, which has to be added to each frame, but it's taking a very long time.

Can you offer any tips that would help make this process faster?

I'm using Wondershare Filmora 9 for this job.

Thanks.
I am not sure about Filmora 9, but Google Motion Tracking. You just need to roughly track the sign and make a blur bigger than the sign, so it's allways covered. If you want to exactly censor the sign, you need to track the corners. But I'd think filmora can't do that