Gemini Nano Banana Pro Image

Gemini Nano Banana Pro 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_facing_direction_degrees": 70.0, "torso_lean_degrees": 18.0, "head_pose_degrees": { "yaw": -14.0, "pitch": -2.5, "roll": 2.0 }, "expression_lock": { "expression_type": "soft_closed_smile", "mouth_corner_lift_mm_est": 2.0, "eye_squint_level": 0.12, "no_exaggerated_emotion": true } }, "fabric_geometry_lock": { "lock_enabled": true, "wardrobe_items": [ { "item": "white_ribbed_tank_top", "fit": "snug", "material": { "type": "cotton_rib_knit", "surface": "matte", "estimated_gsm": 220 } }, { "item": "camo_leggings_black_white_gray", "fit": "compression_tight", "material": { "type": "poly_spandex_athletic", "surface": "low_sheen", "estimated_gsm": 260 }, "pattern_lock": { "enabled": true } }, { "item": "white_low_top_sneakers", "material": { "upper": "leather", "sole": "rubber" } } ], "accessories_lock": { "enabled": true, "items": [ { "item": "layered_gold_necklaces", "count": 3, "material": "gold" } ] } }, "lighting_lock": { "lock_enabled": true, "lighting_type": "natural_overcast_warm_edge", "color_temperature_k": 5200, "shadow_constraints": { "shadow_softness": "soft" }, "specular_constraints": { "skin_specular_level": 0.18, "fabric_specular_level": 0.10 } }, "environment_lock": { "lock_enabled": true, "scene_type": "narrow_alleyway", "ground_plane": { "surface": "aged_concrete" }, "right_wall": { "material": "red_brown_brick" }, "left_wall": { "material": "light_stucco_or_plaster" } }, "prohibitions": { "no_pose_adjustment_allowed": true, "no_camera_reframe_allowed": true, "no_lens_change_allowed": true, "no_background_recomposition": true, "no_wardrobe_changes": true, "no_ai_improvisation": true, "no_cartoon_proportions": true, "no_fisheye_distortion": true, "no_text_overlays": true, "no_watermarks": true }, "render_validation": { "must_match_reference_checks": { "subject_bbox_iou_min": 0.93, "head_bbox_iou_min": 0.94, "color_temperature_delta_k_max": 120, "exposure_delta_ev_max": 0.20 }, "failure_behavior": { "if_mismatch_detected": "reject_and_regenerate", "max_regenerations": 6 } }, "final_prompt_payload": { "instruction": "Create the photograph with strict match-move fidelity. Preserve all geometry, camera, lighting, environment, pose, wardrobe, and expression. Replace ONLY the woman's identity. Photorealistic output, zero drift." } }