{
  "schema": "izzi.hamonshu-crop-plan/1",
  "volume": 2,
  "source_directory": "resources.rizal/hamonshu/hamonshu_2.pages",
  "default_output": "resources.rizal/hamonshu/hamonshu_2.crops",
  "coordinate_system": "Normalized integers 0–1000 relative to full source image; boxes are left, top, right, bottom. Pixel boundaries are rounded. Optional polygons select original pixels inside that box; other pixels become transparent.",
  "reviewed": "2026-09-29",
  "status": "Prepared for human review; category names are not assigned.",
  "segmentation": "One distinct bounded design or coherent repeated group per crop. Connected compositions spanning the gutter are kept together. Touching or occluded designs can leave neighboring fragments in rectangular crops; these are explicitly noted. Original linework, color and full resolution are preserved.",
  "scans": [
    {
      "scan": 1,
      "boxes": [
        [
          237,
          95,
          870,
          595
        ],
        [
          55,
          650,
          599,
          966
        ]
      ],
      "polygons": {
        "0": [
          [
            237,
            175
          ],
          [
            720,
            175
          ],
          [
            720,
            95
          ],
          [
            870,
            95
          ],
          [
            870,
            595
          ],
          [
            237,
            595
          ]
        ],
        "1": [
          [
            230,
            650
          ],
          [
            599,
            650
          ],
          [
            599,
            966
          ],
          [
            55,
            966
          ],
          [
            55,
            690
          ],
          [
            230,
            690
          ]
        ]
      },
      "notes": [
        "Upper cover ornament; title labels are masked. The source already hides some linework.",
        "Lower cover ornament; the vertical title is masked. Occluded lines are not reconstructed."
      ],
      "source_sha256": "333628aabe25006f8dbf3e888dbf87b55e3048d15fcbc27d4972f611f54613b8",
      "size": [
        3479,
        5042
      ]
    },
    {
      "scan": 2,
      "boxes": [
        [
          64,
          274,
          455,
          825
        ]
      ],
      "notes": [
        "Left framed water composition; marginal writing and the blank facing page are excluded."
      ],
      "source_sha256": "ae113148728a8fbe851bca1921c1e214bd87af93d38096098fbd4be1a4bc3090",
      "size": [
        6079,
        5042
      ]
    },
    {
      "scan": 3,
      "boxes": [
        [
          52,
          188,
          461,
          498
        ],
        [
          52,
          548,
          461,
          894
        ],
        [
          590,
          227,
          941,
          404
        ],
        [
          534,
          463,
          902,
          576
        ],
        [
          537,
          588,
          952,
          913
        ]
      ],
      "notes": [
        "Upper left current field.",
        "Lower left breaking-wave composition.",
        "Upper right outline crest group.",
        "Middle right fine-line water field.",
        "Lower right connected and repeated wave composition, kept within its panel."
      ],
      "source_sha256": "bfb6749030b6bb17556eb24d8e6040f860b1e51d10b7dcc9b4051df759669e0c",
      "size": [
        6096,
        5042
      ]
    },
    {
      "scan": 4,
      "boxes": [
        [
          190,
          248,
          420,
          601
        ],
        [
          94,
          502,
          248,
          725
        ],
        [
          46,
          554,
          462,
          914
        ],
        [
          520,
          224,
          942,
          706
        ],
        [
          525,
          750,
          941,
          913
        ]
      ],
      "polygons": {
        "1": [
          [
            94,
            502
          ],
          [
            192,
            502
          ],
          [
            192,
            602
          ],
          [
            248,
            602
          ],
          [
            248,
            725
          ],
          [
            94,
            725
          ]
        ],
        "2": [
          [
            396,
            554
          ],
          [
            462,
            554
          ],
          [
            462,
            914
          ],
          [
            46,
            914
          ],
          [
            46,
            744
          ],
          [
            310,
            744
          ],
          [
            310,
            732
          ],
          [
            384,
            732
          ],
          [
            384,
            604
          ],
          [
            396,
            604
          ]
        ]
      },
      "notes": [
        "Upper left framed curls and drops.",
        "Left diagonal-line panel; mask removes the overlapping upper panel. Its hidden corner remains absent.",
        "Lower left flowing-water composition; mask separates the adjacent framed designs.",
        "Upper right vertical repeat, kept as one graphic pattern.",
        "Lower right breaking-wave band."
      ],
      "source_sha256": "4433d20dfefe8dff701469ed20550e407b46e01908cf749e6ecd25e42a8cbb95",
      "size": [
        6096,
        5025
      ]
    },
    {
      "scan": 5,
      "boxes": [
        [
          51,
          177,
          462,
          338
        ],
        [
          51,
          352,
          462,
          487
        ],
        [
          516,
          179,
          935,
          338
        ],
        [
          516,
          352,
          935,
          487
        ],
        [
          50,
          786,
          462,
          916
        ],
        [
          516,
          713,
          933,
          916
        ]
      ],
      "notes": [
        "Upper left wave ribbon, preserving the printed panel boundaries.",
        "Second left ribbon.",
        "Upper right ribbon.",
        "Second right ribbon.",
        "Lower left dense water band; the surrounding blank layout is omitted.",
        "Lower right dense water field; the vertical line belongs to the original layout."
      ],
      "source_sha256": "3d9b42f385d8a6710556fa79c8c25e1f1e9d22d19c6796af0c29257d8c641012",
      "size": [
        6113,
        5025
      ]
    },
    {
      "scan": 6,
      "boxes": [
        [
          51,
          179,
          465,
          501
        ],
        [
          51,
          499,
          464,
          916
        ],
        [
          516,
          237,
          930,
          321
        ],
        [
          516,
          349,
          936,
          463
        ],
        [
          520,
          519,
          914,
          745
        ],
        [
          558,
          771,
          917,
          849
        ]
      ],
      "notes": [
        "Upper left curl-and-drop composition.",
        "Lower left foam field, kept as a coherent composition.",
        "Upper right sparse line group.",
        "Second right sparse line group.",
        "Middle right repeated short strokes.",
        "Lower right interlaced band."
      ],
      "source_sha256": "ddc3930133c6ab70c809e5fd7be048872aa932dc06136399cb2ca750d9ca2a07",
      "size": [
        6096,
        5025
      ]
    },
    {
      "scan": 7,
      "boxes": [
        [
          61,
          231,
          450,
          316
        ],
        [
          184,
          388,
          454,
          475
        ],
        [
          62,
          535,
          425,
          640
        ],
        [
          70,
          681,
          382,
          814
        ],
        [
          516,
          277,
          857,
          383
        ],
        [
          730,
          425,
          912,
          480
        ],
        [
          542,
          496,
          858,
          566
        ],
        [
          529,
          682,
          887,
          828
        ]
      ],
      "notes": [
        "Upper left layered strokes.",
        "Middle left connected scalloped band.",
        "Paired left crest lines, kept together as one example.",
        "Lower left rows of small crests.",
        "Upper right overlapping arc field.",
        "Small right row of solid crests.",
        "Larger right row of solid crests.",
        "Lower right short-stroke field."
      ],
      "source_sha256": "2f5903f4ca9a2b1689e8884e02d0e2963b91475cd964cd88cb30fde5f3d43897",
      "size": [
        6113,
        5042
      ]
    },
    {
      "scan": 8,
      "boxes": [
        [
          108,
          254,
          392,
          316
        ],
        [
          61,
          350,
          348,
          392
        ],
        [
          70,
          502,
          279,
          563
        ],
        [
          302,
          433,
          414,
          565
        ],
        [
          62,
          606,
          452,
          842
        ],
        [
          541,
          316,
          742,
          574
        ],
        [
          745,
          248,
          891,
          414
        ],
        [
          556,
          601,
          642,
          696
        ],
        [
          639,
          588,
          895,
          843
        ]
      ],
      "notes": [
        "Upper left framed strip.",
        "Second left framed strip.",
        "Third left framed strip.",
        "Small left circular foam form.",
        "Lower left symmetric scroll composition.",
        "Upper right open-center ring.",
        "Upper right filled disk.",
        "Small middle right isolated curl group.",
        "Two overlapping lower-right water medallions; kept together because one occludes the other."
      ],
      "source_sha256": "3766cad12bf43c9d25352f7282ee0e09cb3387bcae3637aec9e9222e0e97b17b",
      "size": [
        6113,
        5075
      ]
    },
    {
      "scan": 9,
      "boxes": [
        [
          52,
          207,
          463,
          439
        ],
        [
          51,
          455,
          463,
          910
        ],
        [
          510,
          211,
          922,
          521
        ],
        [
          510,
          521,
          922,
          920
        ]
      ],
      "notes": [
        "Upper left current field.",
        "Lower left breaking-wave composition.",
        "Upper right outlined wave field.",
        "Lower right sweeping current composition."
      ],
      "source_sha256": "132faefe88c56645a8c401b7fe13863c7f38ec44282f7b15c23b75c7b80a7dcc",
      "size": [
        6113,
        5025
      ]
    },
    {
      "scan": 10,
      "boxes": [
        [
          51,
          264,
          461,
          372
        ],
        [
          60,
          428,
          461,
          615
        ],
        [
          51,
          618,
          461,
          818
        ],
        [
          516,
          250,
          932,
          329
        ],
        [
          516,
          445,
          932,
          676
        ],
        [
          515,
          693,
          932,
          850
        ]
      ],
      "notes": [
        "Upper left fine-line wave band.",
        "Middle left rolling-wave group.",
        "Lower left coiled current.",
        "Upper right fine-line wave band.",
        "Middle right rolling lines, kept as one field.",
        "Lower right long current ribbon."
      ],
      "source_sha256": "2764d161b0cf9cc1bfeddda95e6bc15628268d1405eefd305931216c4d5d3294",
      "size": [
        6113,
        5025
      ]
    },
    {
      "scan": 11,
      "boxes": [
        [
          244,
          260,
          402,
          451
        ],
        [
          88,
          389,
          236,
          567
        ],
        [
          294,
          559,
          373,
          650
        ],
        [
          112,
          642,
          242,
          681
        ],
        [
          207,
          711,
          342,
          751
        ],
        [
          68,
          794,
          412,
          847
        ],
        [
          539,
          272,
          625,
          366
        ],
        [
          683,
          245,
          875,
          473
        ],
        [
          554,
          433,
          681,
          577
        ],
        [
          738,
          555,
          874,
          711
        ],
        [
          625,
          633,
          695,
          712
        ],
        [
          585,
          702,
          623,
          749
        ],
        [
          603,
          746,
          804,
          850
        ]
      ],
      "notes": [
        "Upper left open-center disk.",
        "Middle left arc-filled disk.",
        "Small left open-center disk.",
        "First left rectangular strip.",
        "Second left rectangular strip.",
        "Lower left isolated current line.",
        "Two touching upper-right small curl disks, retained together.",
        "Upper right bold spiral disk.",
        "Middle right repeated-arch disk.",
        "Lower right breaking-wave disk.",
        "Small three-lobed curl form.",
        "Small isolated circular curl.",
        "Lower right group of flowing curls."
      ],
      "source_sha256": "3a2c623bc8f12c65ee252b48827261e60984a3963e065773067496f1d570142e",
      "size": [
        6113,
        5042
      ]
    },
    {
      "scan": 12,
      "boxes": [
        [
          118,
          229,
          345,
          504
        ],
        [
          108,
          545,
          257,
          720
        ],
        [
          274,
          683,
          416,
          852
        ],
        [
          344,
          451,
          546,
          643
        ],
        [
          579,
          242,
          876,
          598
        ],
        [
          534,
          622,
          692,
          813
        ],
        [
          750,
          730,
          839,
          837
        ]
      ],
      "notes": [
        "Upper left foam-and-curl disk.",
        "Middle left rimmed curl disk.",
        "Lower left spiral-and-drop disk.",
        "Central foam medallion crosses the gutter; its two visible halves are kept together.",
        "Large upper right wave-filled disk.",
        "Lower right interlaced-arc disk.",
        "Small lower right open-center disk."
      ],
      "source_sha256": "a36a2a9254c02fe0f0bf3588c19e7adc54d751b5deedd7925f2fba6e1f27a812",
      "size": [
        6113,
        5058
      ]
    },
    {
      "scan": 13,
      "boxes": [
        [
          156,
          236,
          350,
          469
        ],
        [
          691,
          256,
          857,
          453
        ],
        [
          108,
          519,
          248,
          644
        ],
        [
          287,
          404,
          718,
          666
        ],
        [
          79,
          694,
          406,
          822
        ],
        [
          723,
          578,
          901,
          684
        ],
        [
          550,
          689,
          771,
          832
        ]
      ],
      "polygons": {
        "3": [
          [
            429,
            404
          ],
          [
            562,
            404
          ],
          [
            562,
            445
          ],
          [
            674,
            445
          ],
          [
            674,
            486
          ],
          [
            718,
            486
          ],
          [
            718,
            666
          ],
          [
            287,
            666
          ],
          [
            287,
            507
          ],
          [
            365,
            507
          ],
          [
            365,
            446
          ],
          [
            429,
            446
          ]
        ]
      },
      "notes": [
        "Upper left foam disk.",
        "Upper right rimmed foam disk.",
        "Middle left broken-arc repeat.",
        "Central scroll composition crosses the gutter; mask excludes nearby disks. Fold-hidden linework is not reconstructed.",
        "Lower left crest composition.",
        "Middle right isolated ripple group.",
        "Lower right open double-line curl."
      ],
      "source_sha256": "2f9959042177f7ced6089e77c09e4aff476db642a810bc2cb94ac9e909bb2976",
      "size": [
        6129,
        5042
      ]
    },
    {
      "scan": 14,
      "boxes": [
        [
          51,
          190,
          461,
          916
        ],
        [
          504,
          190,
          915,
          916
        ]
      ],
      "notes": [
        "Left framed field of irregular foam and spray; the repeated composition is kept together.",
        "Right framed field of irregular foam and spray; the repeated composition is kept together."
      ],
      "source_sha256": "9c6de48e5d8b4eda50b75ab50b8e18d8f24aff8f7c4c108fd89cc96212d8022f",
      "size": [
        6129,
        5025
      ]
    },
    {
      "scan": 15,
      "boxes": [
        [
          374,
          293,
          677,
          351
        ],
        [
          321,
          390,
          566,
          450
        ],
        [
          110,
          346,
          268,
          444
        ],
        [
          175,
          533,
          438,
          642
        ],
        [
          76,
          717,
          366,
          805
        ],
        [
          698,
          335,
          866,
          452
        ],
        [
          518,
          521,
          783,
          650
        ],
        [
          619,
          730,
          858,
          814
        ]
      ],
      "notes": [
        "Upper pointed repeat crosses the gutter; both visible portions are retained.",
        "Second arched repeat crosses the gutter; both visible portions are retained.",
        "Upper left rising-water emblem.",
        "Middle left fountain-and-drop emblem.",
        "Lower left pointed wave group.",
        "Upper right pointed crest emblem.",
        "Middle right rising-water scroll.",
        "Lower right fountain-and-drop emblem."
      ],
      "source_sha256": "a32f3012966f0111139d4e9c7300b0f837b85506feaa73fa015e8842bf1b3ed5",
      "size": [
        6129,
        5042
      ]
    },
    {
      "scan": 16,
      "boxes": [
        [
          77,
          270,
          312,
          411
        ],
        [
          299,
          445,
          414,
          497
        ],
        [
          76,
          519,
          279,
          574
        ],
        [
          198,
          585,
          424,
          671
        ],
        [
          69,
          689,
          296,
          757
        ],
        [
          282,
          756,
          407,
          815
        ],
        [
          517,
          216,
          906,
          497
        ],
        [
          517,
          513,
          885,
          870
        ]
      ],
      "notes": [
        "Upper left current loop.",
        "Small detailed left crest.",
        "First middle left scroll strip.",
        "Second middle left scroll strip.",
        "Lower left long scroll strip.",
        "Small lower left curl group.",
        "Upper right connected ripple field.",
        "Lower right paired flowing-water ribbons, retained as one arrangement."
      ],
      "source_sha256": "76a1b68d8e8a72cd475a95a72d07c11fa6cdc588d8da54fe179c7556de44d63f",
      "size": [
        6129,
        5075
      ]
    },
    {
      "scan": 17,
      "boxes": [
        [
          46,
          187,
          456,
          509
        ],
        [
          153,
          525,
          449,
          632
        ],
        [
          46,
          640,
          441,
          875
        ],
        [
          554,
          270,
          876,
          494
        ],
        [
          517,
          493,
          838,
          596
        ],
        [
          534,
          629,
          901,
          865
        ]
      ],
      "notes": [
        "Upper left framed repeat with foam rings and arc borders.",
        "Middle left woven water band.",
        "Lower left flowing band.",
        "Upper right rows of narrow crests.",
        "Middle right sparse crest group.",
        "Lower right connected irregular ripple group."
      ],
      "source_sha256": "6ae0fd2f350d71e104c85ebc250325299a602811b4c20eba416ca61a932ac605",
      "size": [
        6113,
        5025
      ]
    },
    {
      "scan": 18,
      "boxes": [
        [
          56,
          201,
          453,
          366
        ],
        [
          68,
          380,
          449,
          521
        ],
        [
          46,
          563,
          457,
          921
        ],
        [
          513,
          211,
          924,
          638
        ],
        [
          513,
          637,
          924,
          922
        ]
      ],
      "notes": [
        "Upper left broken-stroke water field.",
        "Middle left small crest lines.",
        "Lower left broad foam cells.",
        "Upper right diagonal wave field.",
        "Lower right solid foam silhouette."
      ],
      "source_sha256": "fc480ac314e798a5d97a3eb9956cdb4afb2a232221c79ea3f003d0d5151475c6",
      "size": [
        6113,
        5042
      ]
    },
    {
      "scan": 19,
      "boxes": [
        [
          46,
          174,
          456,
          458
        ],
        [
          46,
          509,
          456,
          883
        ],
        [
          511,
          243,
          920,
          455
        ],
        [
          509,
          514,
          924,
          915
        ]
      ],
      "notes": [
        "Upper left fine-line crest field.",
        "Lower left layered wave field.",
        "Upper right connected ripple field.",
        "Lower right breaking-wave composition with spray."
      ],
      "source_sha256": "1b9898a958e7c3feae03c653967646611e8985911ca738bd03b2e0b1e2c160be",
      "size": [
        6113,
        5042
      ]
    },
    {
      "scan": 20,
      "boxes": [
        [
          49,
          185,
          457,
          588
        ],
        [
          46,
          629,
          456,
          910
        ],
        [
          502,
          178,
          910,
          405
        ],
        [
          502,
          408,
          910,
          648
        ],
        [
          504,
          655,
          910,
          750
        ],
        [
          575,
          756,
          905,
          916
        ]
      ],
      "notes": [
        "Upper left decorated wave composition.",
        "Lower left dense flowing lines.",
        "Upper right diagonal crest.",
        "Middle right diagonal crest.",
        "First lower right group of overlapping crests.",
        "Bottom right layered arc field."
      ],
      "source_sha256": "64bb9859b661c8df2bb8f4849cd62aca687f948c987a9628423bfd7c728420d7",
      "size": [
        6150,
        5042
      ]
    },
    {
      "scan": 21,
      "boxes": [
        [
          45,
          189,
          247,
          515
        ],
        [
          247,
          189,
          456,
          515
        ],
        [
          45,
          552,
          455,
          920
        ],
        [
          500,
          187,
          913,
          541
        ],
        [
          502,
          554,
          913,
          870
        ]
      ],
      "notes": [
        "Upper left large-curl panel.",
        "Neighboring upper left dense-curl panel.",
        "Lower left fine-line crest field.",
        "Upper right repeated foam streaks.",
        "Lower right paired curl-and-drop waves."
      ],
      "source_sha256": "2e7575e9aefebeaf4178ed15014bc7967e945fc2d6b8264c4513552539027347",
      "size": [
        6113,
        5042
      ]
    },
    {
      "scan": 22,
      "boxes": [
        [
          51,
          192,
          460,
          448
        ],
        [
          84,
          461,
          460,
          676
        ],
        [
          60,
          711,
          391,
          837
        ],
        [
          505,
          184,
          914,
          439
        ],
        [
          505,
          439,
          914,
          660
        ],
        [
          505,
          661,
          914,
          915
        ]
      ],
      "notes": [
        "Upper left dense ripple field.",
        "Middle left rows of fine crests.",
        "Lower left small crest bands.",
        "Upper right outlined breaking waves.",
        "Middle right linked current ribbon.",
        "Lower right foam-and-spray field."
      ],
      "source_sha256": "719714e884422604695564c74e27f2e7863d52bb29a9eec76582fe30097655ca",
      "size": [
        6129,
        5025
      ]
    },
    {
      "scan": 23,
      "boxes": [
        [
          45,
          177,
          454,
          881
        ],
        [
          502,
          225,
          914,
          492
        ],
        [
          502,
          628,
          664,
          897
        ],
        [
          508,
          535,
          912,
          831
        ]
      ],
      "polygons": {
        "3": [
          [
            508,
            535
          ],
          [
            912,
            535
          ],
          [
            912,
            831
          ],
          [
            668,
            831
          ],
          [
            668,
            657
          ],
          [
            638,
            640
          ],
          [
            617,
            628
          ],
          [
            508,
            628
          ]
        ]
      },
      "notes": [
        "Left connected sweeping-water composition.",
        "Upper right sweeping ribbon.",
        "Lower right narrow current field along the inner page edge.",
        "Lower right scattered crest group; mask separates the adjacent dense current."
      ],
      "source_sha256": "fcaabc1c988edd7df308284a9bb682a266e62ed65b4023b141ecead740b016c1",
      "size": [
        6129,
        5042
      ]
    },
    {
      "scan": 24,
      "boxes": [
        [
          45,
          183,
          452,
          509
        ],
        [
          45,
          550,
          453,
          916
        ],
        [
          500,
          265,
          913,
          411
        ],
        [
          519,
          489,
          913,
          622
        ],
        [
          504,
          656,
          836,
          850
        ]
      ],
      "notes": [
        "Upper left solid foam silhouette and drops.",
        "Lower left graphic wave-and-foam field.",
        "Upper right water composition around a rock; the rock is retained as part of the scene.",
        "Middle right coiled wave group.",
        "Lower right breaking-wave group and spray."
      ],
      "source_sha256": "8351d4cbd98ec14a5bb16158b3e4726434748ed0d59cc0ed694e1e80c1a522f2",
      "size": [
        6150,
        5042
      ]
    },
    {
      "scan": 25,
      "boxes": [
        [
          60,
          208,
          905,
          633
        ],
        [
          64,
          603,
          913,
          840
        ]
      ],
      "polygons": {
        "0": [
          [
            60,
            208
          ],
          [
            905,
            208
          ],
          [
            905,
            633
          ],
          [
            506,
            633
          ],
          [
            506,
            592
          ],
          [
            60,
            592
          ]
        ],
        "1": [
          [
            64,
            603
          ],
          [
            449,
            603
          ],
          [
            449,
            659
          ],
          [
            539,
            659
          ],
          [
            539,
            714
          ],
          [
            913,
            714
          ],
          [
            913,
            840
          ],
          [
            64,
            840
          ]
        ]
      },
      "notes": [
        "Upper outline-current composition spans both pages; mask excludes the lower pattern.",
        "Lower broad current ribbon crosses the gutter; mask excludes the upper pattern."
      ],
      "source_sha256": "e35c11896828169b88a56210fe851de9ecfc38d4d08b14de026f091fd21682eb",
      "size": [
        6129,
        5058
      ]
    },
    {
      "scan": 26,
      "boxes": [
        [
          43,
          210,
          456,
          495
        ],
        [
          78,
          495,
          416,
          878
        ],
        [
          315,
          695,
          430,
          839
        ],
        [
          490,
          182,
          897,
          516
        ],
        [
          492,
          565,
          795,
          710
        ],
        [
          574,
          742,
          897,
          884
        ]
      ],
      "polygons": {
        "1": [
          [
            78,
            495
          ],
          [
            416,
            495
          ],
          [
            416,
            690
          ],
          [
            316,
            690
          ],
          [
            316,
            878
          ],
          [
            78,
            878
          ]
        ]
      },
      "notes": [
        "Upper left outlined current group.",
        "Large lower left scroll; mask excludes the separate small curl at its right.",
        "Small lower left S-shaped curl.",
        "Upper right interlaced-arc field.",
        "Middle right open oval lattice.",
        "Lower right flowing ripple field."
      ],
      "source_sha256": "89155d5707b105bacd2a7d73bdf0609c7afeabcc39b3bb522daefbbe359cfc63",
      "size": [
        6129,
        5042
      ]
    },
    {
      "scan": 27,
      "boxes": [
        [
          622,
          239,
          841,
          512
        ],
        [
          542,
          321,
          648,
          561
        ],
        [
          646,
          428,
          863,
          693
        ],
        [
          534,
          559,
          752,
          827
        ],
        [
          600,
          690,
          822,
          854
        ]
      ],
      "polygons": {
        "1": [
          [
            542,
            321
          ],
          [
            621,
            321
          ],
          [
            621,
            512
          ],
          [
            648,
            512
          ],
          [
            648,
            561
          ],
          [
            542,
            561
          ]
        ],
        "2": [
          [
            841,
            428
          ],
          [
            863,
            428
          ],
          [
            863,
            693
          ],
          [
            751,
            693
          ],
          [
            751,
            561
          ],
          [
            646,
            561
          ],
          [
            646,
            512
          ],
          [
            841,
            512
          ]
        ],
        "4": [
          [
            752,
            690
          ],
          [
            822,
            690
          ],
          [
            822,
            854
          ],
          [
            600,
            854
          ],
          [
            600,
            827
          ],
          [
            752,
            827
          ]
        ]
      },
      "notes": [
        "Upper right foreground panel of dense curls and foam. The facing text page is excluded.",
        "Partly hidden arc panel; mask retains its visible L-shaped portion.",
        "Partly hidden zigzag-wave panel; mask excludes the overlapping foreground panels.",
        "Lower right foreground crest panel.",
        "Partly hidden radial-water panel; mask retains its exposed lower and right edges."
      ],
      "source_sha256": "8c79a4ca1a5d86f30eca9b3e17992d461be81e2bcf4527880d7c46ce4b765629",
      "size": [
        6113,
        5042
      ]
    },
    {
      "scan": 28,
      "boxes": [
        [
          87,
          163,
          452,
          427
        ],
        [
          302,
          439,
          492,
          563
        ],
        [
          303,
          563,
          861,
          879
        ]
      ],
      "notes": [
        "Upper back-cover group of overlapping spirals.",
        "Middle back-cover isolated spiral.",
        "Lower back-cover group of overlapping spirals."
      ],
      "source_sha256": "33779f4493535c366def4093da7f4a8f69a5b73f58143c668d15df7b705d00bb",
      "size": [
        3513,
        5025
      ]
    }
  ]
}
