# GPT Image Hub prompt

## Chuyển Đổi Tranh Phác Thảo Chì và Mực
- URL: https://www.gptimagehub.com/vi/library/pencil-and-ink-sketch-transformation
- Generator URL: https://www.gptimagehub.com/vi/generate?promptId=oss-ym-mm-3976
- Markdown URL: https://www.gptimagehub.com/api/agent/markdown?path=%2Fvi%2Flibrary%2Fpencil-and-ink-sketch-transformation
- Category: Áp phích và minh họa
- Model: nanobanana
- Aspect ratio: 3:4
- Style: 3d
- Tags: phác thảo chì, vẽ mực, ảnh thành tranh vẽ, vẽ tay, đánh bóng nét, mỹ thuật
- Updated: 2026-10-26T15:35:53.098Z
- Created: 2026-10-26T15:35:53.098Z

Biến ảnh tham khảo thành tranh vẽ tay bằng bút chì và mực tinh tế. Điều chỉnh mức độ đánh bóng và đường nét để đạt hiệu ứng nghệ thuật mong muốn.

### Full prompt
```text
{
  "prompt": "Use the reference photo as the primary reference for composition, proportions, pose, objects, and layout. Preserve the original identity and facial features accurately. Convert the image into a refined [pencil and ink sketch illustration] using clean hand-drawn linework, controlled cross-hatching, and soft tonal shading. Keep facial features, eyes, and hands sharp and expressive, while rendering background details minimally with light pencil sketches. The overall look is an elegant, timeless, professional hand-drawn fine art illustration.",
  "negative_prompt": "identity change, distorted facial features, cartoon, anime, 3D render, messy scribbles, heavy black fills, low quality, blur, noise, extra limbs, text, watermark, logo",
  "style": "refined pencil and ink sketch illustration",
  "mood": "classic, artistic, serene",
  "lighting": "subtle illustrative shading",
  "texture": "fine art paper grain, graphite and ink strokes",
  "render_quality": "hand-drawn fine art illustration",
  "reference_strength": 0.9
}
```