# GPT Image Hub prompt

## Photo Restoration and High Definition Upscale
- URL: https://www.gptimagehub.com/library/photo-restoration-and-high-definition-upscale
- Generator URL: https://www.gptimagehub.com/generate?promptId=oss-ym-g2-19634
- Markdown URL: https://www.gptimagehub.com/api/agent/markdown?path=%2Flibrary%2Fphoto-restoration-and-high-definition-upscale
- Category: Portrait & Photography
- Model: nanobanana2-lite
- Aspect ratio: 4:5
- Style: photorealistic
- Tags: restoration, upscale, portrait, photo editing, cinematic, raw aesthetic, photorealistic
- Updated: 2026-10-28T04:02:38.098Z
- Created: 2026-10-28T04:02:38.098Z

Restores, cleans up, and upscales vintage or degraded portrait photos while preserving authentic faces and skin textures. Adjust the target resolution and denoising strength parameters to balance clarity with fidelity.

### Full prompt
```text
{
  "task": "[image_restoration_upscale]",
  "positive_prompt": "Restore and enhance the reference photo. Strictly preserve original identity, facial structure, proportions, and composition. High-fidelity photo restoration, natural skin texture, accurate fine details, professional photographic finish. [4K] resolution output, sharp natural focus, subtle cinematic lighting, soft volumetric illumination, professional color grading, depth of field, HDR, Arri Alexa raw photo aesthetic.",
  "negative_prompt": "Creative reinterpretation, style change, identity alteration, face reshaping, exaggerated features, cartoonish, painting, illustration, over-sharpening, plastic skin, blur, noise, film grain, jpeg artifacts, distortion, bad anatomy, overexposed, underexposed, washed out colors.",
  "parameters": {
    "steps": 30,
    "cfg_scale": 6.5,
    "denoising_strength": 0.45,
    "upscaler": "4x_NMKD_Siax_200k",
    "target_resolution": "[4K]"
  }
}
```