# Unpixelate Image

> To unpixelate an image, upload it to Kenerate and run Phota Enhance for photos or Real-ESRGAN for mild pixelation and JPEG blocks — the AI replaces the squares with smooth edges and texture. In our test a 150-pixel portrait blown up into blocks came back as a clean 2304-pixel image. AI cannot un-censor pixelated faces or text; it only invents a replacement.

URL: https://kenerateai.com/unpixelate-image
Publisher: Kenerate AI (https://kenerateai.com)
Last updated: 26 September 2026

## Key facts
- Photos: Phota Enhance
- Mild blocks: Real-ESRGAN
- Art: Clarity Pro, creative
- Censored images: Can't be revealed

## Steps
1. Upload the pixelated image — Add a JPG, PNG or WEBP up to 25 MB — a tiny image that was blown up, a heavily compressed download or a zoomed screenshot.
2. Pick how to rebuild it — Phota Enhance rebuilds photos faithfully. Real-ESRGAN is enough for mild pixelation and JPEG blocks. Clarity Pro with a high creativity setting invents new detail for art.
3. Compare and download — Check faces and edges at 100% and download — no watermark.

## In depth

### Pixelation throws information away
Shrinking an image to a few pixels keeps only coarse detail — the sampling theorem says finer detail is simply not stored [1]. Many different sharp images collapse into the same blocks, so an AI can only choose one plausible version, not recover the real one [2].

### The PULSE lesson
In 2020 PULSE, a research “depixelizer”, searched a face generator for any face that matched a pixelated input [3]. Given a pixelated photo of Barack Obama it produced a white man, and similar results for other people of colour — a vivid example of an AI inventing, not recovering [4].

### When unpixelating works well
It works when the image is simply small or badly compressed and you want a pleasant, larger version: Real-ESRGAN was trained on exactly that kind of damage — blur, noise, resizing and JPEG [5]. The less information is left, the more the result is the model's guess; creative engines guess the most [2].

### Can pixelated redactions be reversed?
Not by upscaling. Security researchers have shown that pixelated text can sometimes be guessed: Depix matches blocks against a reference image of the same font, size and colour [6], and Bishop Fox's Unredacter tries character guesses, pixelates each one and compares [7]. Researchers have also shown that neural networks can recognise faces through pixelation — picking among known candidates, not rebuilding the original [8].
The practical advice from those researchers is simple: to hide something, use a solid black box, never pixelation or blur [7]. An AI “unpixelate” gives a plausible picture, not the hidden original.

References:
[1] Shannon (1949) — Communication in the Presence of Noise: https://www.math.unl.edu/~bdeng1/Teaching/math943/Topics/Genetics/Shannon1949.pdf
[2] Blau & Michaeli — The Perception-Distortion Tradeoff (CVPR 2018): https://arxiv.org/abs/1711.06077
[3] Menon et al. — PULSE (CVPR 2020): https://arxiv.org/abs/2003.03808
[4] The Verge — The Obama depixelizer and AI bias: https://www.theverge.com/21298762/face-depixelizer-ai-machine-learning-tool-pulse-stylegan-obama-bias
[5] Wang et al. — Real-ESRGAN (ICCV Workshops 2021): https://arxiv.org/abs/2107.10833
[6] Depix — GitHub (recovering pixelated text, proof of concept): https://github.com/spipm/Depix
[7] Bishop Fox — Unredacter: never use pixelation for redaction: https://bishopfox.com/blog/unredacter-tool-never-pixelation
[8] McPherson, Shokri & Shmatikov — Defeating image obfuscation with deep learning (2016): https://arxiv.org/abs/1609.00408

## FAQ
Q: How do I unpixelate an image?
A: Upload it to Kenerate and run Phota Enhance for photos, or Real-ESRGAN for mild pixelation and JPEG blocks. The AI replaces the blocks with smooth edges and texture and outputs a larger image. No watermark.

Q: Can you unpixelate a censored image?
A: No. Pixelation used to hide a face, a number plate or text destroys that information. An AI can only invent something plausible — it cannot reveal what was hidden.

Q: How do I fix a pixelated photo?
A: Start from the largest copy you have, then run it through an AI enhancer. On Kenerate, Phota Enhance turned a 150-pixel portrait that had been blown up into blocks into a clean 2304-pixel image.

Q: Why do images get pixelated?
A: Because they are too small for the size they are shown at — each pixel gets stretched into a visible square — or because heavy JPEG compression breaks them into 8×8 blocks.

Q: What is the difference between unpixelate and depixelate?
A: Nothing — both mean turning a blocky, pixelated image back into a smooth one.

Q: Will the unpixelated photo look exactly like the original?
A: Close, not exact. The AI rebuilds plausible detail from the blocks. With creative engines (Clarity Pro at high creativity) the result can differ noticeably — the dahlia on this page was repainted.

Q: Is it free?
A: Free to start: new accounts get 25 free sign-up credits to test. Bigger jobs use one-time credit packs that never expire — no subscription.

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- Enhance AI art: https://kenerateai.com/enhance-ai-art
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- Best photo restoration software: https://kenerateai.com/best-photo-restoration-software
- Denoise photos: https://kenerateai.com/how-to-denoise-photos
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- Topaz Labs alternative: https://kenerateai.com/alternatives/topazlabs-alternative

## Sources
- Pixelation — Wikipedia: https://en.wikipedia.org/wiki/Pixelation
- Compression artifact — Wikipedia: https://en.wikipedia.org/wiki/Compression_artifact