# Blind Super-Resolution (x4) on DIV2K (val)

Source: [Blind Super-Resolution (x4) on DIV2K (val)](<https://www.sota2.com/research/sota/blind-super-resolution-x4-on-div2k-val>)

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

Data updated: 2026-02-26T05:55:27.238Z

Evaluation of 4x Blind Super-Resolution performance on the validation split of the DIV2K dataset, measured by PSNR and SSIM.

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 | Blind Super-Resolution (x4) |
| Dataset (including any stated split) | DIV2K (val) |
| Metric | PSNR |
| Unit | SCALAR |
| Direction | Higher is better |
| Results loaded | 6 of 6 |
| 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/blind-super-resolution-x4-on-div2k-val.md?metric=PSNR>): Higher is better; unit: SCALAR.

- [SSIM](<https://www.sota2.com/research/sota/blind-super-resolution-x4-on-div2k-val.md?metric=SSIM>): Higher is better; unit: SCALAR.

## Recorded results

| Method | PSNR | Result date | Report paper |
| --- | --- | --- | --- |
| KOALAnet | 29.44 | Not recorded | 68fa699a1e209131cea23038 |
| IKC | 27.98 | Not recorded | 68fa699a1e209131cea23038 |
| IKC | 27.61 | Not recorded | 68fa699a1e209131cea23038 |
| ZSSR | 27.39 | Not recorded | 68fa699a1e209131cea23038 |
| Bicubic | 27.04 | Not recorded | 68fa699a1e209131cea23038 |
| KernelGAN + ZSSR | 23.75 | Not recorded | 68fa699a1e209131cea23038 |

### KOALAnet

PSNR: 29.44. Result ID: 698dc3418b517eb43323922f.

[Reporting paper](<https://www.sota2.com/research/paper/68fa699a1e209131cea23038.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa699a1e209131cea23038.md>)

Recorded evaluation configuration: {"Scale":"x4","Time (s)":0.59,"GFLOPs":57}. This record does not assert independent reproduction.

### IKC

PSNR: 27.98. Result ID: 698dc3418b517eb43323922e.

[Reporting paper](<https://www.sota2.com/research/paper/68fa699a1e209131cea23038.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa65da1e209131cea0cc98.md>)

Recorded evaluation configuration: {"Scale":"x4","IKC Variant":"max","Time (s)":0.67,"GFLOPs":575}. This record does not assert independent reproduction.

### IKC

PSNR: 27.61. Result ID: 698dc3418b517eb43323922d.

[Reporting paper](<https://www.sota2.com/research/paper/68fa699a1e209131cea23038.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa65da1e209131cea0cc98.md>)

Recorded evaluation configuration: {"Scale":"x4","IKC Variant":"last","Time (s)":0.67,"GFLOPs":575}. This record does not assert independent reproduction.

### ZSSR

PSNR: 27.39. Result ID: 698dc3418b517eb43323922b.

[Reporting paper](<https://www.sota2.com/research/paper/68fa699a1e209131cea23038.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa63ee1e209131cea018cc.md>)

[Implementation](<http://www.wisdom.weizmann.ac.il/~vision/zssr/>)

Recorded evaluation configuration: {"Scale":"x4","Time (s)":16.91,"GFLOPs":6091}. This record does not assert independent reproduction.

### Bicubic

PSNR: 27.04. Result ID: 698dc3418b517eb43323922a.

[Reporting paper](<https://www.sota2.com/research/paper/68fa699a1e209131cea23038.md>)

Recorded evaluation configuration: {"Scale":"x4"}. This record does not assert independent reproduction.

### KernelGAN + ZSSR

PSNR: 23.75. Result ID: 698dc3418b517eb43323922c.

[Reporting paper](<https://www.sota2.com/research/paper/68fa699a1e209131cea23038.md>)

Recorded evaluation configuration: {"Scale":"x4","Time (s)":357.7,"GFLOPs":11908}. This record does not assert independent reproduction.

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