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This repository was archived by the owner on Feb 25, 2025. It is now read-only.

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example.py

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example.py

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import shutil
import urllib.request
import zipfile
from pathlib import Path
import enlighten
import pycolmap
from pycolmap import logging
def run():
output_path = Path("example/")
image_path = output_path / "Fountain/images"
database_path = output_path / "database.db"
sfm_path = output_path / "sfm"
output_path.mkdir(exist_ok=True)
logging.set_log_destination(logging.INFO, output_path / "INFO.log.") # + time
data_url = "https://cvg-data.inf.ethz.ch/local-feature-evaluation-schoenberger2017/Strecha-Fountain.zip"
if not image_path.exists():
logging.info("Downloading the data.")
zip_path = output_path / "data.zip"
urllib.request.urlretrieve(data_url, zip_path)
with zipfile.ZipFile(zip_path, "r") as fid:
fid.extractall(output_path)
logging.info(f"Data extracted to {output_path}.")
if database_path.exists():
database_path.unlink()
pycolmap.extract_features(database_path, image_path)
pycolmap.match_exhaustive(database_path)
num_images = pycolmap.Database(database_path).num_images
if sfm_path.exists():
shutil.rmtree(sfm_path)
sfm_path.mkdir(exist_ok=True)
with enlighten.Manager() as manager:
with manager.counter(total=num_images, desc="Images registered:") as pbar:
pbar.update(0, force=True)
recs = pycolmap.incremental_mapping(
database_path,
image_path,
sfm_path,
initial_image_pair_callback=lambda: pbar.update(2),
next_image_callback=lambda: pbar.update(1),
)
for idx, rec in recs.items():
logging.info(f"#{idx} {rec.summary()}")
if __name__ == "__main__":
run()
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