What actually hides a face, and what only looks like it does.
Most of what people use to hide a face in a photo or a video can be undone, and the ones that cannot be undone fail for different reasons nobody warns you about. These are the answers written out in full, including the parts that are inconvenient for the thing we sell.
Blurred
Recoverable
Covered
Nothing left to recover
- 01Can a blurred face be unblurred?Often, yes. A blur is a weighted average, and averages can be walked backwards. Here is what survives a blur, what does not survive a solid cover, and how to tell them apart.
- 02How to blur a face in a video, and which method to trust.Every way to hide a face in a video — phone, desktop editor, browser — with what each one costs you in time, quality and privacy, and which to pick for which job.
- 03How to post a video anonymously.A face is only one of the things in a video that identifies you. Voice, metadata, reflections, timing and the account itself — what to check, in the order that matters.