# GPT Image Hub prompt

## 超写实铅笔素描肖像
- URL: https://www.gptimagehub.com/zh-CN/library/hyper-realistic-pencil-sketch-portrait
- Generator URL: https://www.gptimagehub.com/zh-CN/generate?promptId=oss-ym-mm-2903
- Markdown URL: https://www.gptimagehub.com/api/agent/markdown?path=%2Fzh-CN%2Flibrary%2Fhyper-realistic-pencil-sketch-portrait
- Category: 海报与插画
- Model: gpt-image-2-5-sunburst
- Aspect ratio: 4:5
- Style: painterly
- Tags: 铅笔素描, 黑白单色, 肖像, 超写实, 纯艺术, 手绘
- Updated: 2026-10-26T18:58:43.098Z
- Created: 2026-10-26T18:58:43.098Z

通过结构化 JSON 参数生成细节丰富的单色铅笔素描肖像。可自由调整主体标签、视线方向或光影布局以呈现不同人物与情绪。

### Full prompt
```text
{
  "meta": {
    "image_quality": "High",
    "image_type": "单色数码插画 / 超写实铅笔素描"
  },
  "global_context": {
    "scene_description": "[一位女性]的影棚肖像",
    "time_of_day": "摄影棚环境",
    "weather_atmosphere": "静谧而亲密",
    "lighting": {
      "source": "影棚灯光",
      "direction": "正面蝴蝶光",
      "quality": "柔和漫射",
      "color_temp": "中性灰度"
    }
  },
  "color_palette": {
    "dominant_tones": [
      "炭黑",
      "板岩灰",
      "银灰",
      "深黑",
      "纯白"
    ],
    "contrast_level": "中等"
  },
  "composition": {
    "camera_angle": "平视视线高度",
    "framing": "特写头部肖像",
    "depth_of_field": "浅景深，发丝边缘与背景虚化",
    "focal_point": "主体的双眼与鼻梁"
  },
  "objects": [
    {
      "id": "obj_001",
      "label": "[女性主体]",
      "category": "人物",
      "location": "居中",
      "prominence": "前景",
      "visual_attributes": {
        "color": "完整灰度色阶",
        "texture": "细腻肌肤、根根分明的发丝、柔软唇部质感",
        "material": "皮肤与头发",
        "state": "摆拍姿态",
        "dimensions_relative": "占据画面约80%空间"
      },
      "micro_details": [
        "捕捉到柔和微光的细微碎发",
        "双眼瞳孔中的微弱眼神光",
        "细致描绘的睫毛与眉毛",
        "上唇上方柔和的人中阴影",
        "颈部与锁骨处细腻的石墨铅笔阴影",
        "额头与脸颊处平滑的铅笔渐变过渡"
      ],
      "pose_or_orientation": "[正视前方，眼神直视镜头]"
    },
    {
      "id": "obj_002",
      "label": "背景",
      "category": "环境",
      "location": "全画幅",
      "prominence": "背景",
      "visual_attributes": {
        "color": "深灰至中灰渐变",
        "texture": "细腻点描铅笔肌理",
        "material": "艺术素描纸质感",
        "state": "静态",
        "dimensions_relative": "主体后方的完整画面覆盖"
      },
      "micro_details": [
        "遍布画面的微细铅笔颗粒与纸张纹理",
        "四角柔和的暗角效果",
        "紧邻头周柔和的浅色光晕效果"
      ]
    }
  ]
}
```