黑白胶片颗粒感抓拍肖像

{
  "image_generation_prompt": {
    "subject_details": {
      "demographics": "Young woman, caucasian, estimated early 20s",
      "hair": "Textured blonde curly hair styled in a messy updo/bun, loose wispy tendrils and stray hairs framing the face, backlit flyaways",
      "face": "Natural skin texture with visible freckles across nose and cheeks, high cheekbones, strong brushed-up eyebrows, full lips, defined jawline, light natural makeup",
      "gaze": "Direct eye contact, soft and alluring expression, slightly parted lips, calm demeanor"
    },
    "apparel_and_styling": {
      "clothing": "Black spaghetti strap camisole top, V-neck, minimalist style",
      "accessories": "None visible",
      "styling": "Effortless, 'woke up like this' aesthetic, casual chic"
    },
    "pose_and_composition": {
      "type": "Close-up portrait, selfie angle",
      "framing": "Head and shoulders, center composition",
      "posture": "Shoulders slightly angled, neck elongated, visible collarbones, head tilted very slightly"
    },
    "environment_and_background": {
      "setting": "Indoor, domestic setting near a window",
      "backdrop": "Sheer textured curtains with vertical folds, soft fabric detail",
      "depth": "Shallow depth of field, background slightly out of focus to emphasize subject"
    },
    "lighting_and_atmosphere": {
      "type": "Soft natural window lighting (diffused)",
      "direction": "Front-lit with slight side bias",
      "highlights": "Soft specular highlights on forehead, nose tip, and cheekbones",
      "shadows": "Gentle, non-intrusive shadows under the chin and defining the neck",
      "mood": "Intimate, raw, candid, serene, sentimental"
    },
    "technical_specs": {
      "medium": "Black and white photography, monochrome",
      "camera_emulation": "iPhone front camera or 35mm film camera equivalent",
      "lens": "35mm focal length (portrait appropriate but slightly wide for selfie feel)",
      "aperture": "f/2.8",
      "film_grain": "Fine film grain texture added for realism",
      "quality_tags": [
        "Photorealistic",
        "8k resolution",
        "highly detailed skin pores",
        "sharp focus on eyes",
        "high contrast monochrome",
        "raw photo style"
      ]
    }
  }
}