# Gaussian Grayscale Image Denoising on Urban100 (sigma=25)

Source: [Gaussian Grayscale Image Denoising on Urban100 (sigma=25)](<https://www.sota2.com/research/sota/gaussian-grayscale-image-denoising-on-urban100-sigma-25>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2026-02-26T05:55:38.131Z

Evaluation of Gaussian grayscale image denoising performance on the Urban100 dataset, specifically reporting results for noise level sigma=25, measured using PSNR.

A research result applies to its stated dataset, split, metric and evaluation configuration. Compare like-for-like settings, preserve the metric's unit and direction, and distinguish paper-reported results from independent reproduction. The best result recorded here is not a claim of exhaustive, current global coverage.

| Scope | Recorded value |
| --- | --- |
| Task | Gaussian grayscale image denoising |
| Dataset (including any stated split) | Urban100 sigma=25 14 |
| Metric | PSNR |
| Unit | SCALAR |
| Direction | Higher is better |
| Results loaded | 13 of 13 |
| Coverage | All results currently returned for this benchmark |

Evaluation settings may differ between results. The original papers and recorded configurations are needed to establish comparability. A shared metric name alone does not establish an identical protocol.

## Metrics

- [PSNR](<https://www.sota2.com/research/sota/gaussian-grayscale-image-denoising-on-urban100-sigma-25.md?metric=PSNR>): Higher is better; unit: SCALAR.

## Recorded results

| Method | PSNR | Result date | Report paper |
| --- | --- | --- | --- |
| Restormer-Local | 31.55 | Not recorded | 68fa6d351e209131cea386dc |
| Restormer-Local | 31.48 | Not recorded | 68fa6d351e209131cea386dc |
| Restormer | 31.46 | Not recorded | 68fa6d351e209131cea386dc |
| Restormer | 31.39 | Not recorded | 68fa6d351e209131cea386dc |
| DAGL | 31.39 | Not recorded | 68fa6d351e209131cea386dc |
| SwinIR | 31.3 | Not recorded | 68fa6d351e209131cea386dc |
| DRUNet | 31.11 | Not recorded | 68fa6d351e209131cea386dc |
| NLRN | 30.94 | Not recorded | 68fa6d351e209131cea386dc |
| DeamNet | 30.85 | Not recorded | 68fa6d351e209131cea386dc |
| MWCNN | 30.66 | Not recorded | 68fa6d351e209131cea386dc |
| FFDNet | 29.9 | Not recorded | 68fa6d351e209131cea386dc |
| DnCNN | 29.8 | Not recorded | 68fa6d351e209131cea386dc |
| IRCNN | 29.8 | Not recorded | 68fa6d351e209131cea386dc |

### Restormer-Local

PSNR: 31.55. Result ID: 698f83b03a6c314849f99009.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6d351e209131cea386dc.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6d351e209131cea386dc.md>)

[Implementation](<https://github.com/megvii-research/tlc>)

Recorded evaluation configuration: {"Model Training":"separate model for each noise level"}. This record does not assert independent reproduction.

### Restormer-Local

PSNR: 31.48. Result ID: 698f83b03a6c314849f99002.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6d351e209131cea386dc.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6d351e209131cea386dc.md>)

[Implementation](<https://github.com/megvii-research/tlc>)

Recorded evaluation configuration: {"Model Training":"single model for various noise levels"}. This record does not assert independent reproduction.

### Restormer

PSNR: 31.46. Result ID: 698f83b03a6c314849f99008.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6d351e209131cea386dc.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6bfc1e209131cea316e3.md>)

[Implementation](<https://github.com/swz30/Restormer>)

Recorded evaluation configuration: {"Model Training":"separate model for each noise level"}. This record does not assert independent reproduction.

### Restormer

PSNR: 31.39. Result ID: 698f83b03a6c314849f99001.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6d351e209131cea386dc.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6bfc1e209131cea316e3.md>)

[Implementation](<https://github.com/swz30/Restormer>)

Recorded evaluation configuration: {"Model Training":"single model for various noise levels"}. This record does not assert independent reproduction.

### DAGL

PSNR: 31.39. Result ID: 698f83b03a6c314849f99006.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6d351e209131cea386dc.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6ad01e209131cea2a7af.md>)

Recorded evaluation configuration: {"Model Training":"separate model for each noise level"}. This record does not assert independent reproduction.

### SwinIR

PSNR: 31.3. Result ID: 698f83b03a6c314849f99007.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6d351e209131cea386dc.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6a9a1e209131cea294aa.md>)

[Implementation](<https://github.com/JingyunLiang/SwinIR>)

Recorded evaluation configuration: {"Model Training":"separate model for each noise level"}. This record does not assert independent reproduction.

### DRUNet

PSNR: 31.11. Result ID: 698f83b03a6c314849f99000.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6d351e209131cea386dc.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6a551e209131cea2776a.md>)

Recorded evaluation configuration: {"Model Training":"single model for various noise levels"}. This record does not assert independent reproduction.

### NLRN

PSNR: 30.94. Result ID: 698f83b03a6c314849f99004.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6d351e209131cea386dc.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa65331e209131cea08e39.md>)

[Implementation](<https://github.com/Ding-Liu/NLRN>)

Recorded evaluation configuration: {"Model Training":"separate model for each noise level"}. This record does not assert independent reproduction.

### DeamNet

PSNR: 30.85. Result ID: 698f83b03a6c314849f99005.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6d351e209131cea386dc.md>)

Recorded evaluation configuration: {"Model Training":"separate model for each noise level"}. This record does not assert independent reproduction.

### MWCNN

PSNR: 30.66. Result ID: 698f83b03a6c314849f99003.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6d351e209131cea386dc.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa64601e209131cea041cf.md>)

[Implementation](<https://github.com/lpj0/MWCNN>)

Recorded evaluation configuration: {"Model Training":"separate model for each noise level"}. This record does not assert independent reproduction.

### FFDNet

PSNR: 29.9. Result ID: 698f83b03a6c314849f98ffe.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6d351e209131cea386dc.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa64a71e209131cea05e27.md>)

[Implementation](<https://github.com/cszn/FFDNet>)

Recorded evaluation configuration: {"Model Training":"single model for various noise levels"}. This record does not assert independent reproduction.

### DnCNN

PSNR: 29.8. Result ID: 698f83b03a6c314849f98ffd.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6d351e209131cea386dc.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa63631e209131ce9fe4fc.md>)

[Implementation](<https://github.com/cszn/DnCNN>)

Recorded evaluation configuration: {"Model Training":"single model for various noise levels"}. This record does not assert independent reproduction.

### IRCNN

PSNR: 29.8. Result ID: 698f83b03a6c314849f98fff.

[Reporting paper](<https://www.sota2.com/research/paper/68fa6d351e209131cea386dc.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa634b1e209131ce9fdcf4.md>)

[Implementation](<https://github.com/cszn/ircnn>)

Recorded evaluation configuration: {"Model Training":"single model for various noise levels"}. This record does not assert independent reproduction.

Page 1 of 1. This is an index page, not the full collection.
