irv

from io import BytesIO
import re
import asyncio
import numpy as np
from aiohttp import ClientSession, ClientPayloadError
import requests
import itertools, operator
from PIL import Image
import cv2
import backoff

irv

{
	"@context":["http://iiif.io/api/auth/1/context.json","http://iiif.io/api/presentation/3/context.json"],
	"id":"https://api.bl.uk/metadata/iiif/ark:/81055/vdc_100053375788.0x000002/manifest.json",
	"type":"Manifest",
	"label":{"en":["C1186/385 C1186/386 American trip: interview with W. J. Petty"]},
	"metadata": [
	 	{
	 	 	"label":{"en":["Full title"]},
	 	 	"value":{"en":["American trip: interview with W. J. Petty"]}
	 	},

irv

{
  "id": "https://ebook-test-manifests.netlify.com/collection/alice-in-wonderland/index.json",
  "type": "Manifest",
  "items": [
    {
      "id": "https://ebook-test-manifests.netlify.com/collection/alice-in-wonderland/index.json/canvas/0",
      "type": "Canvas",
      "items": [
        {

irv

{
   "items" : [
      {
         "type" : "Canvas",
         "id" : "https://adore.ugent.be/china/canvases/cheating",
         "width" : 1052,
         "duration" : 30,
         "height" : 940,
         "items" : [
            {

irv

{
  "@context":"http://iiif.io/api/presentation/2/context.json",
  "@type":"sc:Manifest",
  "@id":"http://www.example.org/iiif/book1/manifest",
  "sequences" : [
        {
          "@id":"http://www.example.org/iiif/book1/sequence/normal",
          "@type":"sc:Sequence",
          
          "canvases": [

irv

{
            "@context" : [ 
                "http://www.w3.org/ns/anno.jsonld", 
                "http://iiif.io/api/presentation/3/context.json"
            ],
            "id" : "https://api.bl.uk/metadata/iiif/ark:/81055/vdc_100057936273.0x000002/manifest.json",
            "type" : "Manifest",
            "label" : {
                "en" : [ 
                    "C819/86 [No Title]"

irv

{
    "@context": [
        "http://iiif.io/api/auth/1/context.json",
        "http://www.w3.org/ns/anno.jsonld",
        "http://iiif.io/api/presentation/3/context.json"
    ],
    "behavior": [
        "auto-advance"
    ],
    "label": {

irv

{
  "@context": [
    "http://www.w3.org/ns/anno.jsonld",
    "http://iiif.io/api/presentation/3/context.json"
  ],
  "id": "https://www.bl.uk/collection-items/3D3529D7-37E4-4B47-AB2A-4B21B9B4A1A9-manifest.json",
  "type": "Manifest",
  "label": {"@none": ["Paterson's British Itinerary"]},
	"metadata": [
		{

irv

{
	"@context":"http://iiif.io/api/presentation/3/context.json",
	"id":"https://api.bl.uk/metadata/iiif/ark:/81055/vdc_100050842868.0x000002/manifest.json",
	"type":"Manifest",
	"label":{"en":["C1132/1 Nirvana Coca-Cola live"]},
	"metadata": [
	 	{
	 	 	"label":{"en":["Title"]},
	 	 	"value":{"en":["Nirvana Coca-Cola live"]}
	 	},

irv

{
    "id":"https://gist.github.com/irv/53018b335e190b63430a481df9e505fa/fulltext_annotations.json",
    "items": [
        {
            "id": "http://example.org/podcast/annotation/0",
            "type": "Annotation",
            "motivation": "painting",
            "body": {
                "id": "http://example.org/podcast/annotation/0/word",
                "type": "TextualBody",