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地铁站台街头抓拍

图像与视频生成·图像生成

在聊天中使用

结构化 JSON 写实图像提示词：地铁站台的情绪化街头抓拍，按参考图锁定人物身份。

{
  "category": "SUBWAY_PLATFORM_STREET_CANDID",
  "identity_lock": {
    "enabled": true,
    "priority": "ABSOLUTE_MAX",
    "instruction": "严格使用参考图像中的身份。成人，21 岁及以上。保留面部比例与面部特征标记。禁止美颜处理。"
  },
  "subject": {
    "demographics": "成年女性，21–29 岁，身份须与参考图像一致。",
    "hair": {
      "color": "与参考图像一致。",
      "style": "低马尾或松散波浪发，全部收于围巾后方",
      "texture": "呈现真实发丝；略带毛躁；有零散碎发",
      "movement": "几乎无动态；仅平台微风带来轻微飘动"
    },
    "face": {
      "eyes": "完全匹配参考图像；保留真实反光高光点（catchlights）",
      "skin_details": "可见毛孔；阴影真实自然",
      "micro_details": "保留所有面部特征标记"
    },
    "clothing": {
      "outerwear": "极简黑色大衣或夹克（不得含任何标识或文字）",
      "extras": "围巾为可选项（不得含带文字的图案）",
      "fabric": "可见羊毛织物纹理"
    },
    "accessories": {
      "jewelry": ["小号银色圆环耳环（可选）"],
      "bag": "简约托特包或单肩包（不得含任何标识）"
    }
  },
  "pose": {
    "type": "街头抓拍式等待姿态",
    "orientation": "半身站立，靠近站台边缘（保持安全距离）",
    "head_position": "头部略倾斜，姿态沉静",
    "hands": "一手持包带，另一手插在口袋中",
    "gaze": "目光直视镜头，神情中性而自信",
    "expression": "沉静，略带严肃感"
  },
  "setting": {
    "environment": "地铁站台",
    "background_elements": [
      "头顶荧光灯管",
      "背景中列车运动模糊（不可见可读标识）",
      "站台地砖，呈现真实磨损痕迹"
    ],
    "depth": "人物面部清晰锐利；背景适度虚化"
  },
  "camera": {
    "shot_type": "街头风格人像",
    "angle": "平视角度（与被摄者视线齐平）",
    "focal_length_equivalent": "35mm 编辑级镜头 或 26mm 手机镜头",
    "framing": "4:5 构图，利用站台线条引导视觉",
    "focus": "双眼焦点锐利；背景允许运动模糊"
  },
  "lighting": {
    "source": "头顶荧光灯光 + 环境光",
    "direction": "自上而下主光，辅以柔和补光",
    "highlights": "头发与皮肤上呈现真实光泽",
    "shadows": "阴影柔和，略带地铁环境特有的冷调对比"
  },
  "mood_and_expression": {
    "tone": "情绪化、都市感、自信",
    "atmosphere": "真实城市通勤场景下的街头抓拍氛围"
  },
  "style_and_realism": {
    "style": "照片级写实街头人像",
    "imperfections": "背景含适度噪点 + 轻微运动模糊"
  },
  "technical_details": {
    "aspect_ratio": "4:5",
    "resolution": "高分辨率",
    "noise": "中等程度弱光颗粒感",
    "mode_variants": {
      "amateur": "类手机 HDR 效果，轻微颗粒感，构图略有不完美",
      "pro": "曝光更干净，高光控制精准，主体与背景分离更清晰"
    }
  },
  "constraints": {
    "adult_only": true,
    "single_subject_only": true,
    "no_text": true,
    "no_logos": true,
    "no_watermarks": true,
    "no_readable_signage": true
  },
  "negative_prompt": [
    "可读标识", "标识（logos）", "水印（watermark）",
    "身份偏移（identity drift）", "面部形变（face morphing）",
    "多余手指", "扭曲的手部",
    "CGI 效果", "塑料质感皮肤", "过度平滑处理"
  ]
}

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