How AI mosaic removal works
AI does not undo a mosaic: the original pixels are gone. It detects the censored areas, then generates plausible detail for them from what surrounds them and from neighboring frames. Here is how each step works and where the limits are.
Updated 2026-10-01
1. Detecting the mosaic
A detection model scans each frame and outlines the areas covered by a mosaic. It has to tell a real mosaic apart from tiled backgrounds, pixelated text or compression artifacts, and follow each area as it moves from frame to frame.
2. Reconstructing the hidden area
A video restoration model then fills each area. It works on short sequences of frames rather than single images: what is visible in one frame helps reconstruct the next, which keeps the result stable instead of flickering.
3. Putting the video back together
The reconstructed areas are blended back into the original frames, the rest of the image stays untouched, and the video is re-encoded to MP4.
What AI cannot do
- Recover the original image: the result is a reconstruction, not the hidden footage.
- Do as well on very coarse mosaic: the bigger the blocks, the less information is left.
- Fix a poor source: blur, heavy compression or low resolution limit the result.
Because results depend on the source, the only reliable way to judge is to look at your own video. PureFrame generates a free preview clip from every upload before you pay anything.
Frequently Asked Questions
Is the uncensored result the real original?
No. The AI generates plausible detail for the hidden areas; it cannot recover the pixels the mosaic destroyed.
Does it work on every mosaic?
It handles the common Japanese mosaic used in JAV and hentai. Results drop with very coarse mosaic or low-quality sources, which the free preview shows before you pay.
Do I need to install anything?
No. Everything happens in the browser, and the processing runs on our GPUs.