雨中黑白纪录片情侣（图像到图像）

{
  "generation_request": {
    "meta_data": {
      "task_type": "photoreal_documentary_couple_rain_black_and_white",
      "language": "en",
      "priority": "highest",
      "version": "v1.0_BW_RAIN_CANDID_JACKET_SHIELD"
    },
    "output": {
      "aspect_ratio": "4:5",
      "resolution": "high",
      "num_images": 4
    },
    "scene": {
      "concept": "raw romantic documentary moment in heavy rain, captured like street photojournalism",
      "environment": "city street in a downpour, wet pavement with reflections, soft out-of-focus buildings and street signs in the background",
      "key_action": "man holding a jacket above both heads as rain shield while they move quickly, laughing and close together",
      "composition": "mid-shot to 3/4 body, dynamic candid framing, shallow depth of field, background unobtrusive"
    },
    "subject": {
      "couple": "adult woman and adult man",
      "wardrobe": {
        "woman": "white shirt loosely tied, dark skirt, visible wet fabric texture, natural styling",
        "man": "dark shirt and trousers soaked by rain, wristwatch visible, jacket lifted above them"
      },
      "pose": "moving fast under the jacket, bodies close, woman smiling widely, man looking at her with a protective gesture",
      "details": "wet hair strands, rain droplets on skin and clothing, natural wrinkles and cling of wet fabric"
    },
    "camera": {
      "shot": "documentary street photo",
      "lens_mm": 35,
      "aperture": 2.8,
      "focus": "sharp faces and hands; background softly blurred",
      "quality_tags": "ultra-photoreal, crisp rain streaks, realistic wet textures, subtle film grain"
    },
    "lighting": {
      "style": "overcast rainy daylight or dim street ambient",
      "notes": "keep highlights controlled on wet skin and fabric; preserve raindrop visibility"
    },
    "color_grade": {
      "mode": "black_and_white",
      "contrast": "high contrast monochrome with filmic rolloff",
      "grain": "subtle 35mm film grain"
    },
    "negative_prompt": "color, HDR, oversaturated, plastic skin, CGI, cartoon, blur, lowres, fake rain overlay, incorrect rain direction, deformed hands, extra fingers, duplicated limbs, text, logo, watermark"
  }
}