# GPT Image Hub prompt

## Lưới Chân Dung 3x3 Đen Trắng Tương Phản Cao
- URL: https://www.gptimagehub.com/vi/library/high-contrast-monochrome-3x3-portrait-grid
- Generator URL: https://www.gptimagehub.com/vi/generate?promptId=oss-ym-mm-5894
- Markdown URL: https://www.gptimagehub.com/api/agent/markdown?path=%2Fvi%2Flibrary%2Fhigh-contrast-monochrome-3x3-portrait-grid
- Category: Chân dung và nhiếp ảnh
- Model: gpt-image-2-5-sunburst
- Aspect ratio: 1:1
- Style: photorealistic
- Tags: đơn-sắc, đen-trắng, ghép-ảnh, dạng-lưới, chân-dung, nhiếp-ảnh-studio
- Updated: 2026-10-27T23:45:28.098Z
- Created: 2026-10-27T23:45:28.098Z

Tạo lưới chân dung 3x3 đen trắng tương phản cao, giữ nguyên khuôn mặt qua nhiều tư thế khác nhau. Thay đổi trang phục hoặc danh sách tư thế để đổi phong cách.

### Full prompt
```text
{
  "Objective": "Create a 3x3 grid photo collage with high-contrast black-and-white aesthetics",
  "FaceReference": {
    "Mode": "Strict face preservation",
    "Instruction": "Use the reference photo for exact facial features",
    "Consistency": "Face identical across all nine frames"
  },
  "GridComposition": {
    "Layout": "3x3 grid",
    "PoseVariety": [
      "Intense direct stare",
      "Silhouette backlit",
      "Hands covering face peek",
      "Profile strong jaw",
      "Full body power stance",
      "Eyes only close-up",
      "Motion blur",
      "Contemplative downward",
      "Laughing candid"
    ]
  },
  "PersonaDetails": {
    "Subject": {
      "Type": "Same as reference photo",
      "Wardrobe": "[Simple black turtleneck]",
      "OverallPresence": "Timeless, artistic"
    }
  },
  "Environment": {
    "Setting": "Minimal studio",
    "Background": "Grey gradient or geometric backdrop",
    "Lighting": {
      "Style": "Dramatic directional lighting",
      "Quality": "Hard shadows, extreme contrast"
    }
  },
  "ImageQuality": {
    "Details": "Fine art film grain",
    "Aesthetic": "Irving Penn and Richard Avedon portrait photography style"
  },
  "Constraints": {
    "Avoid": ["color", "flat lighting", "different face", "altered facial features"],
    "AspectRatio": "1:1"
  }
}
```