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Pixel-Perfect Identity Swap

An extremely technical JSON prompt designed for near pixel-perfect identity replacement (identity swap) using an uploaded subject image. It locks numerous technical parameters including camera height, lens focal length, aperture, and specific pixel coordinates for facial features, ensuring the new identity is inserted into the exact pose and scene of the reference image.

Pixel-Perfect Identity Swap - Image 1
Pixel-Perfect Identity Swap - Image 2

Prompt

{
  "metadata": {
    "engine_name": "PX-LOCK-X",
    "prompt_version": "pxlockx-1.0.0",
    "generation_goal": "Near pixel-perfect recreation with identity-only replacement",
    "reference_frame_policy": {
      "use_reference_as_ground_truth": true,
      "identity_swap_only": true,
      "no_creative_inference": true
    },
    "units": {
      "angles": "degrees",
      "lengths": "centimeters",
      "coords": "normalized_0_to_1",
      "temperature": "kelvin"
    }
  },

  "identity_replacement": {
    "mode": "identity_only",
    "reference_identity_source": "uploaded_subject_image",
    "replace": {
      "face_identity": true,
      "head_shape": true,
      "hair_color_and_length": true,
      "skin_tone": true,
      "body_identity": true
    },
    "preserve_from_reference": {
      "pose": true,
      "camera": true,
      "lighting": true,
      "environment": true,
      "wardrobe": true,
      "jewelry": true,
      "expression_valence": true,
      "framing_and_crop": true
    },
    "identity_strength": 1.0,
    "no_beautification": true,
    "no_style_transfer": true
  },

  "output_settings": {
    "aspect_ratio": "2:3",
    "resolution_target": "reference_matched",
    "render_style": "photorealistic",
    "color_space": "sRGB",
    "compression": "lossless",
    "dynamic_range": "natural",
    "white_balance_lock": true
  },

  "pixel_coordinates_lock": {
    "lock_enabled": true,
    "reference_frame_dimensions_px_estimate": {
      "width_px": 1024,
      "height_px": 1536
    },
    "crop_boundaries_px_norm": {
      "left_x_norm": 0.0,
      "right_x_norm": 1.0,
      "top_y_norm": 0.0,
      "bottom_y_norm": 1.0
    },
    "primary_subject_bounding_box_norm": {
      "x_min": 0.105,
      "y_min": 0.155,
      "x_max": 0.945,
      "y_max": 0.975
    },
    "head_bounding_box_norm": {
      "x_min": 0.205,
      "y_min": 0.175,
      "x_max": 0.625,
      "y_max": 0.360
    },
    "face_feature_anchors_norm": {
      "left_eye_center": { "x": 0.345, "y": 0.252 },
      "right_eye_center": { "x": 0.445, "y": 0.247 },
      "nose_tip": { "x": 0.405, "y": 0.287 },
      "mouth_center": { "x": 0.403, "y": 0.318 },
      "chin_point": { "x": 0.410, "y": 0.352 }
    }
  },

  "camera_lock": {
    "lock_enabled": true,
    "camera_height_cm": 105.0,
    "camera_to_subject_distance_cm": 230.0,
    "camera_orientation_degrees": {
      "yaw": 8.5,
      "pitch": -3.0,
      "roll": 0.6
    },
    "lens": {
      "focal_length_mm": 85.0,
      "sensor_format": "full_frame",
      "distortion_model": "brown_conrady",
      "distortion_coefficients": { "k1": -0.012, "k2": 0.004 }
    },
    "aperture": {
      "f_number": 2.2,
      "focus_distance_cm": 220.0,
      "focus_target": "face_plane"
    },
    "exposure": {
      "iso": 200,
      "shutter_s": 0.002,
      "exposure_comp_ev": 0.0
    }
  },

  "pose_lock": {
    "lock_enabled": true,
    "pose_type": "deep_squat_crouch",
    "body_facin

Prompt source

Author
Sienna
Updated
Dec 28, 2025
Source
X Post
Try upstream

License

CC BY 4.0. Prompt pages keep the original attribution and source links from the upstream gallery records stored in the database.

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