# 4x Image Super-Resolution on FFHQ 256x256 noisy (sigma\_n = 0.05)

Source: [4x Image Super-Resolution on FFHQ 256x256 noisy (sigma\_n = 0.05)](<https://www.sota2.com/research/sota/4x-image-super-resolution-on-ffhq-256x256-noisy-sigma_n-0-05>)

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

Data updated: 2026-03-20T09:33:33.794Z

Evaluation of 4x Image Super-Resolution performance on the FFHQ 256x256 dataset corrupted by Gaussian noise with sigma\_n = 0.05, measured using PSNR, LPIPS, and FID.

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 | 4x Image Super-Resolution |
| Dataset (including any stated split) | FFHQ 256x256 noisy (sigma\_n = 0.05) |
| Metric | PSNR |
| Unit | SCALAR |
| Direction | Higher is better |
| Results loaded | 10 of 10 |
| 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/4x-image-super-resolution-on-ffhq-256x256-noisy-sigma_n-0-05.md?metric=PSNR>): Higher is better; unit: SCALAR.

- [LPIPS](<https://www.sota2.com/research/sota/4x-image-super-resolution-on-ffhq-256x256-noisy-sigma_n-0-05.md?metric=LPIPS>): Lower is better; unit: SCALAR.

- [FID](<https://www.sota2.com/research/sota/4x-image-super-resolution-on-ffhq-256x256-noisy-sigma_n-0-05.md?metric=FID>): Lower is better; unit: SCALAR.

## Recorded results

| Method | PSNR | Result date | Report paper |
| --- | --- | --- | --- |
| OFTSR distilled | 29.75 | Not recorded | 68fa7b241e209131cea86cdf |
| OFTSR distilled | 29.47 | Not recorded | 68fa7b241e209131cea86cdf |
| SITCOM | 27.8 | Not recorded | 68fa7b241e209131cea86cdf |
| OFTSR distilled | 27.71 | Not recorded | 68fa7b241e209131cea86cdf |
| DDNM | 27.66 | Not recorded | 68fa7b241e209131cea86cdf |
| DAVI | 27.5 | Not recorded | 68fa7b241e209131cea86cdf |
| OFTSR | 27.28 | Not recorded | 68fa7b241e209131cea86cdf |
| DiffPIR | 26.99 | Not recorded | 68fa7b241e209131cea86cdf |
| DDRM | 26.71 | Not recorded | 68fa7b241e209131cea86cdf |
| DPS | 23.61 | Not recorded | 68fa7b241e209131cea86cdf |

### OFTSR distilled

PSNR: 29.75. Result ID: 69bd145947f34ce924a7786f.

[Reporting paper](<https://www.sota2.com/research/paper/68fa7b241e209131cea86cdf.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa7b241e209131cea86cdf.md>)

Recorded evaluation configuration: {"Training protocol":"Training based","NFEs":"1","t":"0"}. This record does not assert independent reproduction.

### OFTSR distilled

PSNR: 29.47. Result ID: 69bd145947f34ce924a7786e.

[Reporting paper](<https://www.sota2.com/research/paper/68fa7b241e209131cea86cdf.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa7b241e209131cea86cdf.md>)

Recorded evaluation configuration: {"Training protocol":"Training based","NFEs":"1","t":"0.5"}. This record does not assert independent reproduction.

### SITCOM

PSNR: 27.8. Result ID: 69bd145947f34ce924a7786a.

[Reporting paper](<https://www.sota2.com/research/paper/68fa7b241e209131cea86cdf.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa78db1e209131cea7ad48.md>)

Recorded evaluation configuration: {"Training protocol":"Training free","NFEs":"20"}. This record does not assert independent reproduction.

### OFTSR distilled

PSNR: 27.71. Result ID: 69bd145947f34ce924a7786d.

[Reporting paper](<https://www.sota2.com/research/paper/68fa7b241e209131cea86cdf.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa7b241e209131cea86cdf.md>)

Recorded evaluation configuration: {"Training protocol":"Training based","NFEs":"1","t":"1"}. This record does not assert independent reproduction.

### DDNM

PSNR: 27.66. Result ID: 69bd145947f34ce924a77868.

[Reporting paper](<https://www.sota2.com/research/paper/68fa7b241e209131cea86cdf.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6e201e209131cea3dfb9.md>)

[Implementation](<https://github.com/wyhuai/DDNM>)

Recorded evaluation configuration: {"Training protocol":"Training free","NFEs":"100"}. This record does not assert independent reproduction.

### DAVI

PSNR: 27.5. Result ID: 69bd145947f34ce924a7786b.

[Reporting paper](<https://www.sota2.com/research/paper/68fa7b241e209131cea86cdf.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa74471e209131cea60b50.md>)

[Implementation](<https://github.com/mlvlab/DAVI>)

Recorded evaluation configuration: {"Training protocol":"Training based","NFEs":"1"}. This record does not assert independent reproduction.

### OFTSR

PSNR: 27.28. Result ID: 69bd145947f34ce924a7786c.

[Reporting paper](<https://www.sota2.com/research/paper/68fa7b241e209131cea86cdf.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa7b241e209131cea86cdf.md>)

Recorded evaluation configuration: {"Training protocol":"Training based","NFEs":"20"}. This record does not assert independent reproduction.

### DiffPIR

PSNR: 26.99. Result ID: 69bd145947f34ce924a77869.

[Reporting paper](<https://www.sota2.com/research/paper/68fa7b241e209131cea86cdf.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6f5a1e209131cea45311.md>)

Recorded evaluation configuration: {"Training protocol":"Training free","NFEs":"100"}. This record does not assert independent reproduction.

### DDRM

PSNR: 26.71. Result ID: 69bd145947f34ce924a77867.

[Reporting paper](<https://www.sota2.com/research/paper/68fa7b241e209131cea86cdf.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6d9f1e209131cea3aea8.md>)

[Implementation](<https://github.com/bahjat-kawar/ddrm>)

Recorded evaluation configuration: {"Training protocol":"Training free","NFEs":"20"}. This record does not assert independent reproduction.

### DPS

PSNR: 23.61. Result ID: 69bd145947f34ce924a77866.

[Reporting paper](<https://www.sota2.com/research/paper/68fa7b241e209131cea86cdf.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa7bdd1e209131cea8adbc.md>)

Recorded evaluation configuration: {"Training protocol":"Training free","NFEs":"1000"}. This record does not assert independent reproduction.

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