File size: 4,025 Bytes
b373569 | 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 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 | import os
import json
import requests
import argparse
from pathlib import Path
from concurrent.futures import ThreadPoolExecutor, as_completed
from tqdm import tqdm
DATA_DIR = Path("/home/adminuser/chungcat/data/raw/unsplash")
METADATA_DIR = Path("/home/adminuser/chungcat/data/raw/unsplash_meta")
def fetch_page(access_key, query, page, per_page=30, min_width=1024):
url = "https://api.unsplash.com/search/photos"
params = {
"query": query,
"page": page,
"per_page": per_page,
"client_id": access_key,
}
resp = requests.get(url, params=params, timeout=30)
resp.raise_for_status()
results = resp.json()["results"]
return [r for r in results if r["width"] >= min_width]
def download_image(photo, resolution="regular", save_dir=None):
photo_id = photo["id"]
url = photo["urls"][resolution]
ext = "jpg"
save_path = save_dir / f"{photo_id}.{ext}"
if save_path.exists():
return save_path, photo
try:
resp = requests.get(url, timeout=60)
resp.raise_for_status()
save_path.write_bytes(resp.content)
return save_path, photo
except Exception as e:
print(f"Failed {photo_id}: {e}")
return None, photo
def save_metadata(photo, meta_dir):
photo_id = photo["id"]
meta = {
"id": photo_id,
"width": photo["width"],
"height": photo["height"],
"description": photo.get("description", ""),
"alt_description": photo.get("alt_description", ""),
"urls": photo["urls"],
"user": photo["user"]["name"],
"tags": [t.get("title", "") for t in photo.get("tags", [])],
}
meta_path = meta_dir / f"{photo_id}.json"
meta_path.write_text(json.dumps(meta, ensure_ascii=False))
def crawl(access_key, queries, max_pages=100, resolution="regular", workers=8):
DATA_DIR.mkdir(parents=True, exist_ok=True)
METADATA_DIR.mkdir(parents=True, exist_ok=True)
total_downloaded = 0
for query in queries:
print(f"\n--- Crawling: '{query}' ---")
for page in range(1, max_pages + 1):
try:
photos = fetch_page(access_key, query, page)
except Exception as e:
print(f"Page {page} failed: {e}")
break
if not photos:
print(f"No more results for '{query}' at page {page}")
break
with ThreadPoolExecutor(max_workers=workers) as executor:
futures = []
for photo in photos:
futures.append(
executor.submit(download_image, photo, resolution, DATA_DIR)
)
for future in as_completed(futures):
path, photo = future.result()
if path:
save_metadata(photo, METADATA_DIR)
total_downloaded += 1
if page % 10 == 0:
print(f" Page {page}, total downloaded: {total_downloaded}")
print(f"\nDone! Total images: {total_downloaded}")
if __name__ == "__main__":
parser = argparse.ArgumentParser(description="Crawl Unsplash images")
parser.add_argument("--access-key", required=True, help="Unsplash API access key")
parser.add_argument(
"--queries",
nargs="+",
default=[
"landscape", "portrait", "architecture", "nature", "city",
"food", "technology", "art", "abstract", "animals",
"fashion", "interior", "street photography", "ocean", "mountain",
],
)
parser.add_argument("--max-pages", type=int, default=100)
parser.add_argument(
"--resolution",
choices=["raw", "full", "regular", "small"],
default="full",
help="Image resolution (full=max quality)",
)
parser.add_argument("--workers", type=int, default=8)
args = parser.parse_args()
crawl(args.access_key, args.queries, args.max_pages, args.resolution, args.workers)
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