File size: 1,756 Bytes
1f748f5 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 |
import argparse
from concurrent.futures import ThreadPoolExecutor
import os
import requests
import shutil
from tqdm import tqdm
def get_image_ids(batch_id: str) -> list[str]:
"""A list of image IDs in the given batch"""
response = requests.get(f"https://iiifintern.ra.se/arkis!{batch_id}/manifest")
response.raise_for_status()
response = response.json()
return [item["id"].split("!")[1][:14] for item in response["items"]]
def download_image(url: str, dest: str) -> None:
"""
Download an image
Arguments:
url: Image url
dest: Destination file name
"""
response = requests.get(url, stream=True)
with open(dest, "wb") as out_file:
shutil.copyfileobj(response.raw, out_file)
del response
def download_image_by_image_id(image_id: str):
"""
Download the image with the given image ID
Creates a directory named after the batch ID and saves the image in
that directory.
"""
batch_id = image_id[:8]
os.makedirs(batch_id, exist_ok=True)
url = f"https://iiifintern.ra.se/arkis!{image_id}/full/max/0/default.jpg"
dest = os.path.join(batch_id, image_id + ".jpg")
download_image(url, dest)
if __name__ == "__main__":
parser = argparse.ArgumentParser(description="Download a batch of images by its batch ID")
parser.add_argument("batch_id", help="batch ID of batch to download")
parser.add_argument("--workers", default=5, help="number of concurrent workers")
args = parser.parse_args()
image_ids = get_image_ids(args.batch_id)
with ThreadPoolExecutor(max_workers=args.workers) as executor:
list(tqdm(executor.map(download_image_by_image_id, image_ids), total=len(image_ids), desc=f"Downloading {args.batch_id}")) |