智能手机前置自拍模拟

{
  "metadata": {
    "device_simulation": "iPhone 17 Pro 前置摄像头",
    "goal": "模拟智能手机前置镜头的真实自拍照片",
    "output_type": "photograph"
  },
  "camera_system": {
    "lens": {
      "focal_length": "等效26毫米",
      "aperture": "f/1.8",
      "distortion_profile": "手机前置广角微弱的桶形畸变",
      "depth_estimation": "TrueDepth深度仿真，主体与背景精准景深过渡",
      "flare_behavior": "明亮逆光边缘的自然微炫光"
    },
    "sensor": {
      "resolution": "2400万像素融合传感器输出",
      "hdr_engine": "Smart HDR多帧色调映射",
      "noise_profile": {
        "shadows": "细腻自然的明度噪点",
        "midtones": "清晰且保留真实纹理，无塑料感",
        "highlights": "高光过渡柔和且不过曝"
      },
      "color_space": "Apple Display P3广色域模拟",
      "dynamic_range": "对比自然的高动态范围平衡"
    }
  },
  "lighting_simulation": {
    "source_type": "[窗边洒入的柔和自然日光]",
    "lighting_quality": "柔和定向光，阴影过渡平滑羽化",
    "shadow_properties": {
      "edge_quality": "边缘柔和发散",
      "density": "自然的中间调深度",
      "placement": "与手持自拍角度完全吻合"
    },
    "highlight_properties": {
      "treatment": "保护高光细节，衰减柔和",
      "skin_reflectance": "鼻梁、额头及颧骨上的微小自然高光反射"
    },
    "ambient_fill": "智能手机ISP典型的柔和环境补光",
    "color_temperature": "[中性偏暖的日光色温]"
  },
  "subject_rendering": {
    "face": {
      "skin_texture": {
        "pores": "细腻可见的天然毛孔与真实皮肤纹理",
        "imperfections": "微小瑕疵、轻微肤色不均、柔软细微绒毛",
        "constraints": "严禁磨皮美颜，无塑料质感，无AI生成的完美光滑表面"
      },
      "facial_contours": "符合TrueDepth测距的真实面部轮廓与自然阴影衰减",
      "expression": "[直视镜头、自然放松的浅浅微笑]",
      "eye_detail": {
        "reflections": "精确匹配环境光源的微小眼神光",
        "sharpness": "虹膜纹理清晰逼真"
      }
    },
    "hair": {
      "strand_detail": "带有自然不规则走向的发丝细节",
      "flyaways": "几根自然凌乱的微碎发",
      "volume": "[自然发量的棕色头发]",
      "lighting_interaction": "柔和的自然光泽与高光质感"
    },
    "hands_and_arms": {
      "selfie_arm_position": "自拍单臂向前自然延伸，略微延伸出画框底部",
      "perspective_distortion": "符合广角近距透视的轻微近大远小压缩感"
    }
  }
}