{
  "backend": "diffusers",
  "candidates": [
    {
      "backend_metadata": {
        "backend": "diffusers",
        "device": "mps",
        "mps_isolated": true,
        "mps_retries": 0,
        "sequential": true,
        "shared_pipeline_components": true,
        "vae_dtype": "float32"
      },
      "file": "candidate:candidate-ffd8b272e6ec",
      "id": "candidate-ffd8b272e6ec",
      "parent_id": null,
      "scores": {
        "badges": [
          "cleanest edges",
          "most distinct"
        ],
        "distinctiveness": 0.324347,
        "edge_cleanliness": 0.941729,
        "method": "edge-iou/density-distance/mean-pixel-distance-v1",
        "structure_similarity": 0.089802
      },
      "seed": 6764547109648557242
    },
    {
      "backend_metadata": {
        "backend": "diffusers",
        "device": "mps",
        "mps_isolated": true,
        "mps_retries": 0,
        "sequential": true,
        "shared_pipeline_components": true,
        "vae_dtype": "float32"
      },
      "file": "candidate:candidate-c2b85f03bafd",
      "id": "candidate-c2b85f03bafd",
      "parent_id": null,
      "scores": {
        "badges": [
          "closest structure"
        ],
        "distinctiveness": 0.301577,
        "edge_cleanliness": 0.775736,
        "method": "edge-iou/density-distance/mean-pixel-distance-v1",
        "structure_similarity": 0.110626
      },
      "seed": 6854547109648557242
    },
    {
      "backend_metadata": {
        "backend": "diffusers",
        "device": "mps",
        "mps_isolated": true,
        "mps_retries": 0,
        "sequential": true,
        "shared_pipeline_components": true,
        "vae_dtype": "float32"
      },
      "file": "candidate:candidate-e78fff7c6921",
      "id": "candidate-e78fff7c6921",
      "parent_id": null,
      "scores": {
        "badges": [],
        "distinctiveness": 0.267569,
        "edge_cleanliness": 0.786622,
        "method": "edge-iou/density-distance/mean-pixel-distance-v1",
        "structure_similarity": 0.093334
      },
      "seed": 6634547109688557242
    },
    {
      "backend_metadata": {
        "backend": "diffusers",
        "device": "mps",
        "mps_isolated": true,
        "mps_retries": 0,
        "sequential": true,
        "shared_pipeline_components": true,
        "vae_dtype": "float32"
      },
      "file": "candidate:candidate-f15e4d703ae1",
      "id": "candidate-f15e4d703ae1",
      "parent_id": null,
      "scores": {
        "badges": [],
        "distinctiveness": 0.286177,
        "edge_cleanliness": 0.508822,
        "method": "edge-iou/density-distance/mean-pixel-distance-v1",
        "structure_similarity": 0.088293
      },
      "seed": 6764547109648557243
    }
  ],
  "files": {
    "candidate:candidate-c2b85f03bafd": {
      "path": "candidates/02-candidate-c2b85f03bafd.png",
      "sha256": "7f87610206eb048022269d6af4c78663e90b51fec7f83e4dd14f74af616c1b09"
    },
    "candidate:candidate-e78fff7c6921": {
      "path": "candidates/03-candidate-e78fff7c6921.png",
      "sha256": "a3e2eecc89259f0853601eac04bd9b683d8f012e1d587b68eef05c3376168e59"
    },
    "candidate:candidate-f15e4d703ae1": {
      "path": "candidates/04-candidate-f15e4d703ae1.png",
      "sha256": "112972ea6be5b2d91c7ff83a5b24cc0d7bb6a2ab8a005c6761438b114a53b426"
    },
    "candidate:candidate-ffd8b272e6ec": {
      "path": "candidates/01-candidate-ffd8b272e6ec.png",
      "sha256": "abb18ea57bbbf9e5d5d3a7545fe77920b8106f2eee41729510ffce0dce9bb6b6"
    },
    "contact_sheet": {
      "path": "contact-sheet.png",
      "sha256": "8205733e5080fb03fa25cca82c03eb810c74226b6fd735934458cd9c05986497"
    },
    "control": {
      "path": "control.png",
      "sha256": "24780b3e469e3de53659f0c8b047667301e983d05cc44545983c1dc2d776ce8e"
    },
    "source": {
      "path": "source.png",
      "sha256": "50f1b2f9bc88c20e45cc38fc8af5e261fab8061fa456c7f9a654e7b8c2017864"
    }
  },
  "kind": "exploration",
  "lineage": {
    "locks": [],
    "parent_id": null,
    "variation_strength": null
  },
  "recipe": {
    "capability_report": {
      "backend": "diffusers",
      "issues": [],
      "supported": true
    },
    "control_strength": 0.55,
    "guidance_scale": 7.0,
    "height": 576,
    "locks": [],
    "models": [
      {
        "repo_id": "stabilityai/stable-diffusion-xl-base-1.0",
        "revision": "462165984030d82259a11f4367a4eed129e94a7b",
        "role": "base"
      },
      {
        "repo_id": "diffusers/controlnet-canny-sdxl-1.0-small",
        "revision": "edd85f64c5f87dfb6d73762949d9daca16389518",
        "role": "controlnet"
      }
    ],
    "negative_prompt": "typography, captions, watermark, logo, photorealistic people, flat watercolor wash, muddy pastel, washed-out colors, low contrast, malformed faces, duplicate characters, extra limbs, white central void, generic tent, cropped main silhouette, flat empty composition, visual clutter",
    "preset": "sdxl-canny-lite@1",
    "profile": "graphic_design",
    "prompt": "An elaborate miniature fantasy country built in the sketch's tall letter A silhouette, populated by delightful tiny mascots. Painted metal towers, enamel creatures, glowing glass windows, layered architectural depth, vivid cyan, cobalt, vermilion, yellow and gold, crisp handcrafted details, dramatic studio lighting, premium concept maquette photograph.",
    "scheduler": "unipc",
    "steps": 36,
    "structure": "balanced",
    "variation_strength": null,
    "width": 768
  },
  "recipe_sha256": "57e36a609469561681bd3861d0e868cf18f8da4c872a2cb3ab26cfec1331cdbb",
  "run_id": "study-hero-hpo-2026",
  "runtime": {
    "aisketcher": "0.2.0",
    "backend": "diffusers",
    "diffusers": "0.39.0",
    "numpy": "2.5.1",
    "opencv": "5.0.0",
    "pillow": "12.3.0",
    "python": "3.14.6",
    "torch": "2.13.0",
    "transformers": "5.14.0"
  },
  "schema": "aisketcher.manifest/v1",
  "seed_plan": {
    "mode": "explicit",
    "seeds": [
      6764547109648557242,
      6854547109648557242,
      6634547109688557242,
      6764547109648557243
    ]
  },
  "selection": "candidate-ffd8b272e6ec",
  "source": {
    "canny": {
      "aperture_size": 3,
      "high": 160,
      "l2_gradient": false,
      "low": 140
    },
    "diagnostics": {
      "border_edge_ratio": 0.000445,
      "component_count": 278,
      "contrast": 0.274599,
      "edge_density": 0.055863,
      "flags": {
        "crop_risk": false,
        "edge_dense": false,
        "edge_sparse": false,
        "low_contrast": false
      },
      "fragmentation": 11.249595,
      "recommended_canny": {
        "aperture_size": 3,
        "high": 224,
        "l2_gradient": false,
        "low": 90
      }
    },
    "original_size": [
      768,
      576
    ],
    "prepared_size": [
      768,
      576
    ]
  }
}
