Získání textové podoby lokality z GPS metadat obrázku

README.md

@@ -0,0 +1,4 @@
+### Usage
+
+```bash
+$ python get_locality.py -i <image_path>

get_locality.py

@@ -0,0 +1,77 @@
+import sys
+from PIL import Image
+from PIL.ExifTags import TAGS, GPSTAGS
+import requests
+
+API_KEY = "LSoLu_4Ca6jjJPVaBZnNPdObHi701oGYbZmnyukL_4I"
+
+def get_decimal_form_dms(dms, ref):
+    degrees = dms[0]
+    minutes = dms[1] / 60.0
+    seconds = dms[2] / 3600.0
+
+    if ref in ['S', 'W']:
+        degrees = -degrees
+        minutes = -minutes
+        seconds = -seconds
+
+    return round(degrees + minutes + seconds, 5)
+
+# define function get_geodata which extracts geolocation data from image metadata and converts it to decimal degrees
+def get_geodata(exif_data):
+    latitude = None
+    latitude_ref = None
+    longitude = None
+    longitude_ref = None
+
+    for tag, value in exif_data.items():
+        if TAGS.get(tag) == 'GPSInfo':
+            for key in value.keys():
+                if GPSTAGS.get(key) == 'GPSLatitude':
+                    latitude = value[key]
+                elif GPSTAGS.get(key) == 'GPSLatitudeRef':
+                    latitude_ref = value[key]
+                elif GPSTAGS.get(key) == 'GPSLongitude':
+                    longitude = value[key]
+                elif GPSTAGS.get(key) == 'GPSLongitudeRef':
+                    longitude_ref = value[key]
+    latitude = get_decimal_form_dms(latitude, latitude_ref)
+    longitude = get_decimal_form_dms(longitude, longitude_ref)
+    return latitude, longitude
+
+def get_location_info(latitude, longitude):
+    if not latitude or not longitude:
+        return None, None
+    url = f"https://api.mapy.cz/v1/rgeocode?lon={longitude}&lat={latitude}&apikey={API_KEY}&lang=cs"
+    response = requests.get(url)
+
+    if response.status_code == 200:
+        location_data = response.json()
+        items = location_data.get('items', [])
+        if items:
+            item = items[0]
+            locality = item['location']
+            region = item['regionalStructure'][5]['name']
+
+            return locality, region
+    return None, None
+
+# get picture file name from command line argument
+def main():
+    if len(sys.argv) != 3 or sys.argv[1] != '-i':
+        print("Chybné použití. Použijte: script.py -i vstupni_obrazek")
+        sys.exit(1)
+
+    input_image_path = sys.argv[2]
+
+    try:
+        image = Image.open(input_image_path)
+        exif_data = image._getexif()
+    except Exception as e:
+        print(f"Chyba při čtení metadat obrázku: {str(e)}")
+        sys.exit(1)
+
+    print(f'Lokalita: {get_location_info(*get_geodata(exif_data))}')
+
+if __name__ == "__main__":
+    main()

requirements.txt

@@ -0,0 +1,6 @@
+certifi==2023.7.22
+charset-normalizer==3.2.0
+idna==3.4
+Pillow==10.0.0
+requests==2.31.0
+urllib3==2.0.4