# GPT Image Hub prompt

## Scambio Volto su Griglia Espressioni
- URL: https://www.gptimagehub.com/it/library/expression-grid-identity-swap
- Generator URL: https://www.gptimagehub.com/it/generate?promptId=oss-ym-mm-10243
- Markdown URL: https://www.gptimagehub.com/api/agent/markdown?path=%2Fit%2Flibrary%2Fexpression-grid-identity-swap
- Category: Ritratto e fotografia
- Model: gpt-image-2-5-sunburst
- Aspect ratio: 2:3
- Style: photorealistic
- Tags: griglia di espressioni, scambio volto, ritratto, provino a contatto, fototessera, immagine su immagine
- Updated: 2026-10-27T21:41:58.098Z
- Created: 2026-10-27T21:41:58.098Z

Applica l'identità di un soggetto a un foglio con 16 espressioni facciali. Sostituisci il ritratto e la griglia per personalizzare persona e pose.

### Full prompt
```text
{
  "generation_request": {
    "meta_data": {
      "task_type": "identity_swap_into_existing_expression_grid",
      "version": "v1.0_4x4_expression_grid"
    },
    "input": {
      "mode": "image_to_image",
      "reference_structure_image": "the reference photo showing a [4x4 expression grid]",
      "reference_identity_portrait": "the reference photo of the target person",
      "preserve_identity": true,
      "preserve_facial_features": true,
      "preserve_hairstyle": true,
      "instructions": "Preserve the precise 4x4 grid layout, individual panel cropping, lighting, and simple background from the structure image. Replace the individual across all sixteen panels with the identity from the reference portrait, accurately replicating each panel's facial expression, gaze direction, head tilt, and hand gesture with realistic skin texture and anatomical precision."
    },
    "style": {
      "lighting": "matched to reference grid image",
      "background": "neutral studio background matching reference grid",
      "texture": "natural pore detail, subtle analog film grain, realistic skin rendering"
    },
    "negative_constraints": [
      "distorted hands",
      "extra digits",
      "inconsistent facial features",
      "plastic smooth skin",
      "asymmetrical eyes",
      "text",
      "watermark"
    ]
  }
}
```