{
  "type": "synthetic_educational",
  "payload": "https://vitrinaqr.ru/qr-kody/pochemu-ne-schityvaetsya/",
  "decoder": "jsQR 1.4.0",
  "method": "Unchanged QR payload, individual pixel alterations, exact comparison after decoding",
  "limitations": "Not printer or physical camera measurements; other decoders and conditions can differ",
  "cases": [
    {
      "id": "original",
      "title": "Исходный код",
      "condition": "Без изменения пикселей",
      "width": 530,
      "height": 530,
      "decoded": true,
      "file": "/examples/print-corpus/original.png"
    },
    {
      "id": "edge",
      "title": "Обрезанный край",
      "condition": "Срезано 55 пикселей слева",
      "width": 530,
      "height": 530,
      "decoded": true,
      "file": "/examples/print-corpus/edge.png"
    },
    {
      "id": "contrast",
      "title": "Слабый контраст",
      "condition": "Тёмные пиксели заменены на серый 225",
      "width": 530,
      "height": 530,
      "decoded": false,
      "file": "/examples/print-corpus/contrast.png"
    },
    {
      "id": "blur",
      "title": "Размытие",
      "condition": "Фильтр размытия 5 пикселей",
      "width": 530,
      "height": 530,
      "decoded": false,
      "file": "/examples/print-corpus/blur.png"
    },
    {
      "id": "glare",
      "title": "Перекрытие",
      "condition": "Белая полоса занимает 24% ширины в центре",
      "width": 530,
      "height": 530,
      "decoded": false,
      "file": "/examples/print-corpus/glare.png"
    }
  ]
}