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81 lines
2.4 KiB
81 lines
2.4 KiB
from PIL import Image
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from PIL.ExifTags import TAGS, GPSTAGS
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import os
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"""
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Copyright (c) 2025 by Robert Strutts
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License: MIT
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"""
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def get_exif_data(image_path):
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"""Get EXIF data from image file"""
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try:
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with Image.open(image_path) as img:
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exif_data = img._getexif()
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if exif_data is not None:
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return {TAGS.get(tag, tag): value for tag, value in exif_data.items()}
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except (AttributeError, IOError, KeyError, IndexError) as e:
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print(f"Error reading EXIF data: {e}")
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return None
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def get_gps_info(exif_data):
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"""Extract GPS information from EXIF data"""
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if not exif_data or 'GPSInfo' not in exif_data:
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return None
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gps_info = {}
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for key in exif_data['GPSInfo'].keys():
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decode = GPSTAGS.get(key, key)
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gps_info[decode] = exif_data['GPSInfo'][key]
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return gps_info
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def convert_to_degrees(value):
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"""Convert GPS coordinates stored in EXIF to degrees in decimal format"""
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d, m, s = value
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return d + (m / 60.0) + (s / 3600.0)
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def get_lat_lon(gps_info):
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"""Get latitude and longitude from GPSInfo dictionary"""
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if not gps_info:
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return None, None
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try:
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lat_ref = gps_info.get('GPSLatitudeRef', 'N')
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lat = gps_info.get('GPSLatitude')
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lon_ref = gps_info.get('GPSLongitudeRef', 'E')
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lon = gps_info.get('GPSLongitude')
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if lat and lon:
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lat_degrees = convert_to_degrees(lat)
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if lat_ref == 'S':
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lat_degrees = -lat_degrees
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lon_degrees = convert_to_degrees(lon)
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if lon_ref == 'W':
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lon_degrees = -lon_degrees
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return lat_degrees, lon_degrees
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except (TypeError, AttributeError) as e:
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print(f"Error converting coordinates: {e}")
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return None, None
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def get_coordinates_from_image(image_path):
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"""Main function to get coordinates from image file"""
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exif_data = get_exif_data(image_path)
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if not exif_data:
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print("No EXIF data found in image.")
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return None
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gps_info = get_gps_info(exif_data)
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if not gps_info:
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print("No GPS information found in EXIF data.")
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return None
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latitude, longitude = get_lat_lon(gps_info)
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if latitude is not None and longitude is not None:
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return (latitude, longitude)
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else:
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print("Could not extract valid coordinates.")
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return None
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