{
  "schema": "flabs-public-image-benchmark/1",
  "version": "public-1",
  "createdAtUtc": "2026-10-13T15:14:49.055207+00:00",
  "tasks": [
    "foreground",
    "upscale2x"
  ],
  "samples": [
    {
      "title": "File:Hanukkah t-shirt, printed in the Metallica font.jpg",
      "sourcePage": "https://commons.wikimedia.org/wiki/File:Hanukkah_t-shirt,_printed_in_the_Metallica_font.jpg",
      "originalURL": "https://upload.wikimedia.org/wikipedia/commons/7/73/Hanukkah_t-shirt%2C_printed_in_the_Metallica_font.jpg?utm_source=commons.wikimedia.org&utm_campaign=imageinfo&utm_content=original",
      "license": "CC0",
      "licenseURL": "http://creativecommons.org/publicdomain/zero/1.0/deed.en",
      "sourceTimestamp": "2026-03-28T06:06:29Z",
      "commonsSHA1": "a62e1e16c109edcfef1ec7cd20d78cbc1fcf75b1",
      "sha256": "3e4b1c363bfc6fa3713e04f53465b62dadf32f85496f9b1c5b89f33f59326d38",
      "width": 3024,
      "height": 4032,
      "encodedWidth": 4032,
      "encodedHeight": 3024,
      "EXIFOrientation": 6,
      "id": "printed-shirt",
      "label": "印字T恤场景图，衣袖部分超出画面，含桌面与杯子",
      "note": "Contains garment text and fabric, but sleeves are partly cropped by the source photograph. Background includes a table and cup; not a catalog-ready isolated garment.",
      "photographer": "Theodore.shouse",
      "credit": "Own work",
      "reference": "inputs/printed-shirt-reference.png",
      "low": "inputs/printed-shirt-low.png",
      "referenceWidth": 450,
      "referenceHeight": 600,
      "referenceSHA256": "4bf563d2151f57c5caf989391dfc3727d1383c6d36c3acfdaf33c14f411ac7da",
      "lowSHA256": "cf185beb7ab05ff12cfb2bd7e591cd485c1088a534a4220782d8dfd9c1f2bd98"
    },
    {
      "title": "File:Product photography.jpg",
      "sourcePage": "https://commons.wikimedia.org/wiki/File:Product_photography.jpg",
      "originalURL": "https://upload.wikimedia.org/wikipedia/commons/1/1f/Product_photography.jpg?utm_source=commons.wikimedia.org&utm_campaign=imageinfo&utm_content=original",
      "license": "CC BY 2.0",
      "licenseURL": "https://creativecommons.org/licenses/by/2.0",
      "sourceTimestamp": "2012-08-31T05:07:23Z",
      "commonsSHA1": "935b1798a4955bb9e08c1b210d4c60a1437172e4",
      "sha256": "f033f6366993af1b4349ac08a3daed2fdfe58a84fa6e731f5daa251c88cabde7",
      "width": 2048,
      "height": 1351,
      "encodedWidth": 2048,
      "encodedHeight": 1351,
      "EXIFOrientation": null,
      "id": "red-shoes",
      "label": "白色背景红色鞋类商品照",
      "note": "Product photography with reflective red uppers, straps, openings and defocused regions.",
      "photographer": "Anne",
      "credit": "Flickr: product photography",
      "reference": "inputs/red-shoes-reference.png",
      "low": "inputs/red-shoes-low.png",
      "referenceWidth": 600,
      "referenceHeight": 396,
      "referenceSHA256": "20ce48c75f13d9383cb550f3eb6ad5b1c2e84e1b2340ec1d6e9632a2db2c8a8b",
      "lowSHA256": "4bd8ed4d6cbf985786fcb3acb5c8c0d51086d93d91890179d31457140c2a1359"
    },
    {
      "title": "File:1935-45 Prada handbag, tooled and gilded leather 01.jpg",
      "sourcePage": "https://commons.wikimedia.org/wiki/File:1935-45_Prada_handbag,_tooled_and_gilded_leather_01.jpg",
      "originalURL": "https://upload.wikimedia.org/wikipedia/commons/c/c0/1935-45_Prada_handbag%2C_tooled_and_gilded_leather_01.jpg?utm_source=commons.wikimedia.org&utm_campaign=imageinfo&utm_content=original",
      "license": "CC0",
      "licenseURL": "http://creativecommons.org/publicdomain/zero/1.0/deed.en",
      "sourceTimestamp": "2022-04-24T23:09:12Z",
      "commonsSHA1": "a2ccbec9b79c1848b68fddc877fbee60463a31bf",
      "sha256": "ee4f0da50cc879e35de0f3dc2c0efbc8117442afd5f77169f77a10fae0bbecfb",
      "width": 900,
      "height": 870,
      "encodedWidth": 900,
      "encodedHeight": 870,
      "EXIFOrientation": 1,
      "id": "leather-bag",
      "label": "渐变灰背景皮革手袋照",
      "note": "Museum object photography with detailed leather and a handle opening.",
      "photographer": "Photographer for the Rhode Island School of Design - Museum of Art",
      "credit": "https://risdmuseum.org/art-design/collection/handbag-199116959",
      "reference": "inputs/leather-bag-reference.png",
      "low": "inputs/leather-bag-low.png",
      "referenceWidth": 600,
      "referenceHeight": 580,
      "referenceSHA256": "2fc0f586f37931f6ee9e3b0b555fcb277895c9072b841a9e5b4c8f31308cae2a",
      "lowSHA256": "f81f92141bb8bb91f6fb9f0fe348396a69b20a21d7ba159b8d265b2781fcbe12"
    }
  ],
  "weights": [
    {
      "name": "u2net.onnx",
      "url": "https://github.com/danielgatis/rembg/releases/download/v0.0.0/u2net.onnx",
      "bytes": 175997641,
      "sha256": "8d10d2f3bb75ae3b6d527c77944fc5e7dcd94b29809d47a739a7a728a912b491"
    },
    {
      "name": "u2netp.onnx",
      "url": "https://github.com/danielgatis/rembg/releases/download/v0.0.0/u2netp.onnx",
      "bytes": 4574861,
      "sha256": "309c8469258dda742793dce0ebea8e6dd393174f89934733ecc8b14c76f4ddd8"
    },
    {
      "name": "FSRCNN_x2.pb",
      "url": "https://raw.githubusercontent.com/Saafke/FSRCNN_Tensorflow/master/models/FSRCNN_x2.pb",
      "bytes": 38973,
      "sha256": "366b33f0084c7b3f2bf6724f0a2c77bca94fcec9d7b6d72389d330073b380d5c"
    },
    {
      "name": "ESPCN_x2.pb",
      "url": "https://raw.githubusercontent.com/fannymonori/TF-ESPCN/master/export/ESPCN_x2.pb",
      "bytes": 86446,
      "sha256": "59f77351e1d7c0057bf6fe088b4a8a07e42c468c8c8aebb674a6b4ea1823221d"
    }
  ],
  "repetitions": 3,
  "warmups": 1,
  "maximumReferenceSide": 600,
  "preprocessing": "Apply EXIF orientation, convert to RGB, Lanczos resize while preserving aspect to max600px with even dimensions; no crop or added background. Round-even aspect error is less than one pixel. Bicubic downsample by2 for super-resolution inputs. PNG derivatives omit EXIF.",
  "conditions": "CPU only; one thread; ONNX Runtime sequential with CPUExecutionProvider; OpenCV backend CPU/OpenCL off. Runtime versions recorded by runner.",
  "timing": "Weight loading excluded. Foreground includes320px preprocessing, inference, mask normalization and resize; super-resolution measures inference only. PNG encoding and file writes excluded.",
  "metrics": "RGB PSNR and luminance SSIM against controlled600px reference and bicubic baseline; 11px Gaussian sigma1.5, exclude5px border. No real degraded-photo restoration metric.",
  "sampleSelection": "Three purposively selected openly licensed product photographs, not a random or representative dataset. No human true masks.",
  "limits": [
    "Only three images, one machine and these pretrained weights.",
    "PSNR/SSIM do not measure human visual preference, text fidelity or print readiness.",
    "No ground-truth alpha masks: no IoU, mask accuracy or quality score.",
    "Garment scene contains surrounding objects and partial sleeves; task means visible garment foreground.",
    "No weighted0-100 score, aggregate ranking or human quality acceptance."
  ],
  "humanQualityAccepted": false,
  "qualityScore": null,
  "paidAPIRequests": 0
}