matthias/mapillary_download
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Download multiple sequence

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Stefal 2023-09-14 00:05:12 +02:00
parent d83771e384
commit f8994ff282
1 changed files with 47 additions and 34 deletions
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download.py
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@ -6,10 +6,11 @@ import argparse
from datetime import datetime from datetime import datetime
import writer import writer
from model import PictureType from model import PictureType
import sys
def parse_args(argv =None): def parse_args(argv =None):
parser = argparse.ArgumentParser() parser = argparse.ArgumentParser()
parser.add_argument('--sequence_id', type=str, help='The mapillary sequence id to download') parser.add_argument('--sequence_ids', type=str, nargs='+', help='The mapillary sequence id(s) to download')
parser.add_argument('--access_token', type=str, help='Your mapillary access token') parser.add_argument('--access_token', type=str, help='Your mapillary access token')
parser.add_argument('--image_count', type=int, default=None, help='How many images you want to download') parser.add_argument('--image_count', type=int, default=None, help='How many images you want to download')
@ -28,6 +29,28 @@ def download(url, fn, metadata=None):
with open(str(fn), "wb") as f: with open(str(fn), "wb") as f:
f.write(image) f.write(image)
def get_single_image_data(image_id, mly_header):
req_url = 'https://graph.mapillary.com/{}?fields=thumb_original_url,altitude,camera_type,captured_at,compass_angle,geometry,exif_orientation'.format(image_id)
r = requests.get(req_url, headers=mly_header)
data = r.json()
#print(data)
return data
def get_image_data_from_sequences(sequences_id, mly_header):
for i,sequence_id in enumerate(sequences_id):
url = 'https://graph.mapillary.com/image_ids?sequence_id={}'.format(sequence_id)
r = requests.get(url, headers=header)
data = r.json()
image_ids = data['data']
total_image = len(image_ids)
print("{} images in sequence {}".format(total_image, sequence_id))
print('getting images data')
for x in range(0, total_image):
image_id = image_ids[x]['id']
image_data = get_single_image_data(image_id, mly_header)
image_data['sequence_id'] = sequence_id
yield image_data
def write_exif(picture, img_metadata): def write_exif(picture, img_metadata):
''' '''
Write exif metadata Write exif metadata
@ -44,7 +67,7 @@ def write_exif(picture, img_metadata):
if __name__ == '__main__': if __name__ == '__main__':
parse_args() parse_args()
if args.sequence_id == None: if args.sequence_ids == None:
print('please provide the sequence_id') print('please provide the sequence_id')
exit() exit()
@ -52,47 +75,37 @@ if __name__ == '__main__':
print('please provide the access_token') print('please provide the access_token')
exit() exit()
sequence_id= args.sequence_id sequence_ids= args.sequence_ids
access_token = args.access_token access_token = args.access_token
# create the data folder # create the data folder
if not os.path.exists('data'): if not os.path.exists('data'):
os.makedirs('data') os.makedirs('data')
images_data = []
header = {'Authorization' : 'OAuth {}'.format(access_token)}
# create a folder for each unique sequence ID to group images by sequence # create a folder for each unique sequence ID to group images by sequence
for sequence_id in sequence_ids:
if not os.path.exists('data/{}'.format(sequence_id)): if not os.path.exists('data/{}'.format(sequence_id)):
os.makedirs('data/{}'.format(sequence_id)) os.makedirs('data/{}'.format(sequence_id))
header = {'Authorization' : 'OAuth {}'.format(access_token)} for i,image_data in enumerate(get_image_data_from_sequences(sequence_ids, header)):
url = 'https://graph.mapillary.com/image_ids?sequence_id={}'.format(sequence_id) if args.image_count is not None and i >= args.image_count:
r = requests.get(url, headers=header) break
data = r.json() images_data.append(image_data)
image_ids = data['data']
img_num = args.image_count if args.image_count is not None else len(image_ids)
urls = []
print(img_num)
print('getting urls')
for x in range(0, img_num):
#for x in range(0, 5):
image_id = image_ids[x]['id']
req_url = 'https://graph.mapillary.com/{}?fields=thumb_original_url,altitude,camera_type,captured_at,compass_angle,geometry,exif_orientation'.format(image_id)
r = requests.get(req_url, headers=header)
data = r.json()
print('getting url {} of {}'.format(x, img_num))
#print(data)
urls.append(data)
print('downloading.. this process will take a while. please wait') print('downloading.. this process will take a while. please wait')
for i,url in enumerate(urls): for i,image_data in enumerate(images_data):
date_time_image_filename = datetime.utcfromtimestamp(int(url['captured_at'])/1000).strftime('%Y-%m-%d_%HH%Mmn%S.%f') date_time_image_filename = datetime.utcfromtimestamp(int(image_data['captured_at'])/1000).strftime('%Y-%m-%d_%HH%Mmn%S.%f')
path = 'data/{}/{}.jpg'.format(sequence_id, date_time_image_filename) path = 'data/{}/{}.jpg'.format(image_data['sequence_id'], date_time_image_filename)
print(path)
sys.exit()
img_metadata = writer.PictureMetadata( img_metadata = writer.PictureMetadata(
capture_time = datetime.utcfromtimestamp(int(url['captured_at'])/1000), capture_time = datetime.utcfromtimestamp(int(image_data['captured_at'])/1000),
longitude = url['geometry']['coordinates'][0], longitude = image_data['geometry']['coordinates'][0],
latitude = url['geometry']['coordinates'][1], latitude = image_data['geometry']['coordinates'][1],
picture_type = PictureType("equirectangular") if url['camera_type'] == 'spherical' else None, picture_type = PictureType("equirectangular") if image_data['camera_type'] == 'spherical' else None,
direction = url['compass_angle'], direction = image_data['compass_angle'],
altitude = url['altitude'], altitude = image_data['altitude'],
) )
download(url['thumb_original_url'],path, img_metadata) download(image_data['thumb_original_url'],path, img_metadata)