Získání textové podoby lokality z GPS metadat obrázku
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README.md
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README.md
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### Usage
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```bash
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$ python get_locality.py -i <image_path>
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get_locality.py
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get_locality.py
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import sys
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from PIL import Image
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from PIL.ExifTags import TAGS, GPSTAGS
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import requests
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API_KEY = "LSoLu_4Ca6jjJPVaBZnNPdObHi701oGYbZmnyukL_4I"
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def get_decimal_form_dms(dms, ref):
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degrees = dms[0]
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minutes = dms[1] / 60.0
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seconds = dms[2] / 3600.0
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if ref in ['S', 'W']:
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degrees = -degrees
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minutes = -minutes
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seconds = -seconds
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return round(degrees + minutes + seconds, 5)
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# define function get_geodata which extracts geolocation data from image metadata and converts it to decimal degrees
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def get_geodata(exif_data):
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latitude = None
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latitude_ref = None
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longitude = None
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longitude_ref = None
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for tag, value in exif_data.items():
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if TAGS.get(tag) == 'GPSInfo':
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for key in value.keys():
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if GPSTAGS.get(key) == 'GPSLatitude':
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latitude = value[key]
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elif GPSTAGS.get(key) == 'GPSLatitudeRef':
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latitude_ref = value[key]
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elif GPSTAGS.get(key) == 'GPSLongitude':
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longitude = value[key]
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elif GPSTAGS.get(key) == 'GPSLongitudeRef':
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longitude_ref = value[key]
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latitude = get_decimal_form_dms(latitude, latitude_ref)
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longitude = get_decimal_form_dms(longitude, longitude_ref)
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return latitude, longitude
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def get_location_info(latitude, longitude):
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if not latitude or not longitude:
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return None, None
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url = f"https://api.mapy.cz/v1/rgeocode?lon={longitude}&lat={latitude}&apikey={API_KEY}&lang=cs"
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response = requests.get(url)
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if response.status_code == 200:
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location_data = response.json()
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items = location_data.get('items', [])
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if items:
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item = items[0]
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locality = item['location']
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region = item['regionalStructure'][5]['name']
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return locality, region
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return None, None
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# get picture file name from command line argument
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def main():
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if len(sys.argv) != 3 or sys.argv[1] != '-i':
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print("Chybné použití. Použijte: script.py -i vstupni_obrazek")
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sys.exit(1)
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input_image_path = sys.argv[2]
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try:
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image = Image.open(input_image_path)
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exif_data = image._getexif()
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except Exception as e:
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print(f"Chyba při čtení metadat obrázku: {str(e)}")
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sys.exit(1)
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print(f'Lokalita: {get_location_info(*get_geodata(exif_data))}')
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if __name__ == "__main__":
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main()
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requirements.txt
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requirements.txt
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certifi==2023.7.22
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charset-normalizer==3.2.0
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idna==3.4
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Pillow==10.0.0
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requests==2.31.0
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urllib3==2.0.4
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