提示词正文

{
  "model": "nano-banana",
  "task": "image_to_image_product_enhancement",
  "objective": "Transform the input product image into a professional commercial studio photograph while preserving the exact product identity, geometry, proportions, stitching, texture, and material properties.",
  "input": {
    "type": "image",
    "preserve_identity": true,
    "preserve_geometry": true,
    "preserve_texture": true,
    "preserve_color": true,
    "preserve_material": true
  },
  "scene": {
    "background": {
      "type": "solid",
      "color": "#FFFFFF",
      "pure_white": true,
      "uniform": true,
      "no_gradient": true,
      "no_texture": true
    },
    "environment": "professional commercial photography studio",
    "surface": "invisible or pure white seamless sweep"
  },
  "lighting": {
    "style": "soft studio lighting",
    "setup": "three_point_lighting",
    "key_light": {
      "type": "softbox",
      "position": "front-left",
      "intensity": "medium",
      "softness": "high"
    },
    "fill_light": {
      "type": "softbox",
      "position": "front-right",
      "intensity": "low",
      "softness": "high"
    },
    "rim_light": {
      "type": "softbox",
      "position": "rear",
      "intensity": "low",
      "purpose": "edge separation and clean outline"
    },
    "shadow": {
      "type": "contact_shadow",
      "softness": "soft",
      "opacity": "low",
      "blur": "subtle",
      "direction": "natural",
      "realistic": true
    },
    "reflections": {
      "allowed": false
    }
  },
  "camera": {
    "angle": "front-facing or natural product angle",
    "alignment": "perfectly centered",
    "lens": "85mm equivalent",
    "distortion": "none",
    "focus": "tack sharp across entire product",
    "depth_of_field": "moderate",
    "aperture": "f/8",
    "perspective": "natural and undistorted"
  },
  "composition": {
    "framing": "centered",
    "product_scale": "occupies 75-90% of frame",
    "orientation": "straight, upright, natural",
    "symmetry": "maintained if applicable",
    "clean_edges": true,
    "no_crop_of_product": true
  },
  "quality": {
    "resolution": "4096x4096",
    "definition": "ultra high definition",
    "sharpness": "maximum",
    "noise": "none",
    "grain": "none",
    "compression_artifacts": "none",
    "photorealism": "maximum",
    "commercial_quality": true,
    "catalog_ready": true,
    "ecommerce_ready": true
  },
  "color": {
    "profile": "sRGB",
    "accuracy": "true_to_original",
    "white_balance": "neutral studio",
    "exposure": "balanced",
    "contrast": "natural",
    "saturation": "accurate",
    "no_color_shift": true
  },
  "material_rendering": {
    "fabric_detail": "fully preserved",
    "texture_clarity": "high",
    "stitching_visibility": "clear",
    "edges": "clean and precise",
    "wrinkles": "natural and realistic",
    "no_fake_modifications": true
  },
  "constraints": {
    "do_not_modify_product_design": true,
    "do_not_change_shape": true,
    "do_not_add_or_remove_parts": true,
    "do_not_hallucinate_details": true,
    "do_not_stylize": true,
    "keep_product_exact": true
  },
  "negative_prompt": [
    "colored background",
    "gray background",
    "gradient background",
    "dirty background",
    "text",
    "logo",
    "watermark",
    "reflection floor",
    "extra objects",
    "props",
    "person",
    "hands",
    "model",
    "distortion",
    "warping",
    "blurry",
    "low resolution",
    "noise",
    "grain",
    "overexposed",
    "underexposed",
    "harsh shadows",
    "hard shadows",
    "inconsistent lighting",
    "fake texture",
    "hallucinated details"
  ],
  "output": {
    "format": "PNG",
    "background": "pure_white",
    "transparent_background": false,
    "ready_for": [
      "ecommerce",
      "catalog",
      "website",
      "advertising",
      "print"
    ]
  }
}