{
  "method": "Count pixels at alpha=0, alpha=255 and 0<alpha<255 in the unedited browser PNG. No ground-truth mask or accuracy score.",
  "cases": [
    {
      "id": "coffee",
      "input": {
        "file": "coffee.png",
        "bytes": 466706,
        "width": 600,
        "height": 400,
        "mode": "RGB",
        "sha256": "cc02f8ca188b167c775a7101b5d767d1e71792cf762c33d6fa15a4599b5a8de7"
      },
      "output": {
        "file": "coffee-output.png",
        "bytes": 646670,
        "width": 1024,
        "height": 682,
        "mode": "RGBA",
        "sha256": "d519208515e8b4c8779b970cf120950bc00cfc127635c725f20bb8c1403d6ea6",
        "alpha": {
          "pixels": 698368,
          "transparentPixels": 359579,
          "partialPixels": 13341,
          "opaquePixels": 325448,
          "transparentPercent": 51.49,
          "partialPercent": 1.91,
          "opaquePercent": 46.6
        }
      }
    },
    {
      "id": "chelsea",
      "input": {
        "file": "chelsea.png",
        "bytes": 240512,
        "width": 451,
        "height": 300,
        "mode": "RGB",
        "sha256": "596aa1e7cb875eb79f437e310381d26b338a81c2da23439704a73c4651e8c4bb"
      },
      "output": {
        "file": "chelsea-output.png",
        "bytes": 1039666,
        "width": 1024,
        "height": 681,
        "mode": "RGBA",
        "sha256": "f5c2b61b411d493d69516f513488194956960eaafe62c166343095ceb3aab0ba",
        "alpha": {
          "pixels": 697344,
          "transparentPixels": 85873,
          "partialPixels": 254698,
          "opaquePixels": 356773,
          "transparentPercent": 12.31,
          "partialPercent": 36.52,
          "opaquePercent": 51.16
        }
      }
    },
    {
      "id": "rocket",
      "input": {
        "file": "rocket.jpg",
        "bytes": 112525,
        "width": 640,
        "height": 427,
        "mode": "RGB",
        "sha256": "c2dd0de7c538df8d111e479619b129464d0269d0ae5fd18ca91d33a7fdfea95c"
      },
      "output": {
        "file": "rocket-output.png",
        "bytes": 570501,
        "width": 1024,
        "height": 683,
        "mode": "RGBA",
        "sha256": "4ee22ab8eaa0491c66ef9f3c9ed284dd99e4cd4b169f6efca7f13c7e0dcdcedf",
        "alpha": {
          "pixels": 699392,
          "transparentPixels": 500692,
          "partialPixels": 187209,
          "opaquePixels": 11491,
          "transparentPercent": 71.59,
          "partialPercent": 26.77,
          "opaquePercent": 1.64
        }
      }
    }
  ]
}