| | |
| | 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() |
| |
|
