| |
| import argparse |
| import json |
| import os |
| from multiprocessing import Pool |
| from pathlib import Path |
|
|
| import requests |
| from fathomnet.api import images |
| from tqdm import tqdm |
|
|
|
|
| def download_imgs(args, image_uuids): |
| flag = 0 |
| for uuid in tqdm(image_uuids, desc="Downloading images"): |
| image = images.find_by_uuid(uuid) |
| file_name = ( |
| Path(args.processed_images_folder) |
| / f"{image.uuid}.{image.url.split('.')[-1]}" |
| ) |
| if not file_name.exists(): |
| try: |
| resp = requests.get(image.url, stream=True) |
| resp.raise_for_status() |
| with open(file_name, "wb") as f: |
| for chunk in resp.iter_content(chunk_size=1024): |
| f.write(chunk) |
| flag += 1 |
| except requests.exceptions.RequestException as e: |
| print(f"Error downloading {image.url}: {e}") |
| print(f"Downloaded {flag} new images to {args.processed_images_folder}") |
|
|
|
|
| def main(): |
| parser = argparse.ArgumentParser(description="Download images from FathomNet") |
| parser.add_argument("--processed_images_folder", help="Path to downloaded images") |
| parser.add_argument( |
| "--image-uuids", |
| default="fathomnet_image_uuids.json", |
| help="Path to JSON file containing image uuids to download", |
| ) |
| parser.add_argument( |
| "--num-procs", type=int, default=16, help="Number of parallel processes" |
| ) |
| args = parser.parse_args() |
|
|
| with open(args.image_uuids, "r") as f: |
| all_uuids = json.load(f) |
|
|
| Path(args.processed_images_folder).mkdir(parents=True, exist_ok=True) |
|
|
| chunk_size = len(all_uuids) // args.num_procs |
| chunks = [ |
| all_uuids[i : i + chunk_size] for i in range(0, len(all_uuids), chunk_size) |
| ] |
|
|
| with Pool(processes=args.num_procs) as pool: |
| pool.starmap(download_imgs, [(args, chunk) for chunk in chunks]) |
|
|
|
|
| if __name__ == "__main__": |
| main() |
|
|
