I've been producing some content for a friend of mine that requires a number of people's faces to be blurred for compliance reasons. In short, *I'm looking for an open source tool that can automatically blur faces in 4k video in rendered output*, (everything is post production no live-streaming). Initially the duration, resolution and format of the video made it possible to do this with the "ai backed" tool in Adobe Premiere. However, now I'm working with 4k footage and the video has shifted to a format with a single face moving too far around the frame for Adobe's tool to be useable or has multiple faces.

I'm not a domain expert here, since the last time I did anything with ML was five years ago in college. Even if I could get the model together, writing a pipeline to actually blur 4k video is a mystery to me (although I'm open to suggestions as to how I could align these coordinates to apply blurring). Please note, I'm not looking for a tool to do this live, however I do need something that can handle 4k video. I also have access to an RTX 3090 and my render box with a few RTX a5000 gpus.

Basically, I'd pay for a service that does this - however I figured I'd post here on HN to find a project I could potentially support via open source! Any / all recommendations are appreciated!

Cheers!

EDIT - the best I've found so far is https://github.com/ORB-HD/deface