老照片新生：4K级修复杰作

{
  "task": "image_restoration_upscale",
  "positive_prompt": "Restore and enhance the provided image. Preserve original identity, facial structure, proportions and composition. High-fidelity photo restoration, ultra-realistic, natural skin texture, accurate details, professional photographic look. 4K output, sharp but natural focus, modern cinematic lighting, subtle volumetric lighting, professional color grading, depth of field, HDR. Shot on a cinema camera, raw photo aesthetic, masterpiece.",
  "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"
  }
}