# Unblur Video

> To unblur video footage, upload it to an AI video clearer that rebuilds detail across frames instead of just sharpening edges. Kenerate's AI Video Upscaler does this at 720p, 1080p, 2K or 4K for clips up to 5 minutes. It sharpens soft, compressed or low-resolution footage; it can't restore a face that motion blur smeared completely.

URL: https://kenerateai.com/unblur-video
Publisher: Kenerate AI (https://kenerateai.com)
Last updated: 3 October 2026

## Key facts
- Works on: Soft, compressed, low-res video
- Limit: Heavy motion blur stays
- Output: 720p · 1080p · 2K · 4K
- Clip limit: 5 min · about 100 MB
- Watermark: None
- 720p · Fast (AI Video Upscaler): Video up to 5 min / ~100 MB → Pixels of 1280 × 720, shape kept. Phone clips that are only slightly soft.
- 1080p · Popular (AI Video Upscaler): Video up to 5 min / ~100 MB → Pixels of 1920 × 1080, shape kept. Most blurry phone and web video.
- 2K · Sharp (AI Video Upscaler): Video up to 5 min / ~100 MB → Pixels of 2560 × 1440, shape kept. Faces and text that need extra edge detail.
- 4K · Max (AI Video Upscaler): Video up to 5 min / ~100 MB → Pixels of 3840 × 2160, shape kept. Soft footage going to a TV or projector.
- Unblur image (Image tools): Photo or screenshot → A sharper still. One frame or a thumbnail.

## Steps
1. Check what kind of blur it is — Soft all over or blocky usually clears well; a streak across a moving face usually doesn't.
2. Upload to the AI Video Upscaler — MP4, MOV or WebM up to 5 minutes and about 100 MB — from your files, History, Library or camera.
3. Choose 1080p or higher — 1080p is the default; 2K or 4K gives the AI more pixels to rebuild edges into.
4. Zoom the before/after — Check faces and text at full size before you download.
5. Download the MP4 — No watermark, and the same length and frame rate as your upload.

## In depth

### Blur is information spread out
A blurred frame can be modelled as the sharp frame combined with a blur kernel, the point spread function [1]. Undoing it means estimating both, and in almost all cases there isn't enough information to find one right answer; noise makes the problem harder still [1].

### Why video beats a single photo
One blurred photo is one view of the scene. A video holds dozens of slightly different views of the same object, and video super-resolution combines them to rebuild detail no single frame contains [2]. That is the advantage of a video upscaler over a sharpen filter.

### Sharpen filters vs AI clearers
Unsharp masking boosts contrast along edges [3]. It makes footage look crisper but also amplifies blocks and noise, and adds halos. A learned upscaler removes compression blocking and rebuilds texture instead, so it doesn't magnify the damage.

### Knowing where to stop
If the subject is a streak in every frame, upscaling produces a cleaner streak. In that case the real fix is a reshoot — or a faster shutter speed next time.

References:
[1] Deblurring — Wikipedia: https://en.wikipedia.org/wiki/Deblurring
[2] Video super-resolution — Wikipedia: https://en.wikipedia.org/wiki/Video_super-resolution
[3] Unsharp masking — Wikipedia: https://en.wikipedia.org/wiki/Unsharp_masking

## FAQ
Q: How do I unblur a video?
A: Upload it to an AI video clearer such as Kenerate's AI Video Upscaler, choose 1080p, 2K or 4K, and download the result. The AI rebuilds edges and texture using neighbouring frames, which works far better than a sharpen filter on soft or compressed clips.

Q: Can you unblur a video online?
A: Yes. Kenerate runs in the browser: sign in, upload an MP4, MOV or WebM of up to 5 minutes and about 100 MB, and the clip is processed on Kenerate's servers. There is nothing to install, and the result downloads as an MP4 without a watermark.

Q: Can AI fix motion blur in a video?
A: Only partly. If motion blur smeared a face or a number plate across many pixels in every frame, that detail was never recorded, so no upscaler can bring it back faithfully. AI does sharpen mild blur, soft focus and compression smear, which is where you will see a clear difference.

Q: What is an AI video clearer?
A: An AI video clearer is a tool that makes footage look sharper by predicting fine detail from learned patterns and nearby frames, usually while raising the resolution. Kenerate's version is its AI Video Upscaler, which outputs 720p, 1080p, 2K or 4K and keeps detail stable from frame to frame.

Q: Why is my video blurry?
A: Most blurry videos are soft for one of four reasons: the camera focused on the wrong thing, the subject or camera moved during a slow shutter, the clip was recorded or exported at a low resolution, or an app compressed it on upload. The last two respond best to AI upscaling.

Q: Does unblurring change my video's length or frame rate?
A: No. The upscaler returns the same length and frame rate you uploaded. It doesn't add frames, slow the clip down, crop it or change its shape, so a vertical phone video comes back vertical and a 30-second clip stays 30 seconds.

Q: Can I unblur a face in a video?
A: You can make a softly focused or compressed face clearer, and the before/after viewer lets you zoom in to check. A face that is a smear, or one blurred on purpose for privacy, can't be reliably reconstructed — AI would only guess. Only edit videos you have the right to use.

## Related pages
- AI video upscaler: https://kenerateai.com/ai-video-upscaler
- How to fix pixelated video: https://kenerateai.com/how-to-fix-pixelated-video
- Improve video quality: https://kenerateai.com/improve-video-quality
- Upscale video to 4K: https://kenerateai.com/upscale-video-to-4k
- TensorPix alternative: https://kenerateai.com/tensorpix-alternative

## Sources
- Kenerate AI Video Upscaler (tool): https://kenerateai.com/app/tool/video-upscale
- Deblurring — Wikipedia: https://en.wikipedia.org/wiki/Deblurring
- Video super-resolution — Wikipedia: https://en.wikipedia.org/wiki/Video_super-resolution
- Unsharp masking — Wikipedia: https://en.wikipedia.org/wiki/Unsharp_masking