Summary: | feature request: improved reverse geolocation | ||
---|---|---|---|
Product: | [Applications] digikam | Reporter: | georg.lipps |
Component: | Geolocation-ReverseGeoCoding | Assignee: | Digikam Developers <digikam-bugs-null> |
Status: | RESOLVED FIXED | ||
Severity: | wishlist | CC: | jens-bugs.kde.org, metzpinguin |
Priority: | NOR | ||
Version: | 7.8.0 | ||
Target Milestone: | --- | ||
Platform: | Ubuntu | ||
OS: | Linux | ||
Latest Commit: | Version Fixed In: | 8.0.0 |
Description
georg.lipps
2016-07-30 20:50:00 UTC
See also #351987. This is a super-old feature request from myself. I meanwhile coded a python script to reverse geocode outside of digikam. I include the code here for further use. Unfortunately I am not able to code in C++ and thus to contribute directly. The reverse geocoding is not super-perfect but gives reasonable results for sightseeing and hiking. It uses gmaps to set or correct the gps determined elevation. Nominatim and Geonames services are used to collect relevant information for tagging. The two most abundant entries are then selected for tagging into the IPTC fields. def reverse(path_file, force=False): # Force will overwrite existing definitions APIKEY = "please order by yourself" gmaps = googlemaps.Client(key=APIKEY) lang = "de" # language used for Nominatin Service tolerance_elevation = 100 slowdown = 1 # interval to slowdown request metadata = GExiv2.Metadata(path_file) if 'Xmp.photoshop.CaptionWriter' in metadata and force == False: if 'Nominatim & GeoNames' in metadata['Xmp.photoshop.CaptionWriter']: logging.info('Skipping already processed file %s' % path_file) return lat = metadata.try_get_gps_latitude() lon = metadata.try_get_gps_longitude() if lat == 0 and lon == 0: logging.warning("Nothing to do since no valid GPS coordinates in file %s" % path_file) return logging.info('Processing file %s' % path_file) elevation = round(gmaps.elevation((lat, lon))[0]["elevation"], 0) gps_elevation = metadata.try_get_gps_altitude() true_elevation = gps_elevation # assume first picture data logging.info('gps elevation: %s \tgmaps elevation: %s' % (gps_elevation, elevation)) if gps_elevation <= 0.0: # no valid elevation true_elevation = elevation logging.info("No valid elevation data in file, elevation set to gmaps value %s", elevation) metadata.try_set_gps_info(lon, lat, true_elevation) elif abs(gps_elevation - elevation) > tolerance_elevation: # too strong deviation true_elevation = int(elevation) logging.info("Too strong deviation, elevation corrected to gmaps value %s", elevation) metadata.set_gps_info(lon, lat, true_elevation) query = "%15.12f,%15.12f" % (lat, lon) # Nominatim service nominatim_dict = {} geolocator = Nominatim(timeout=60, user_agent="reverse") location = geolocator.reverse(query, language=lang) # work-around for attribute in ['country', 'village', 'city', 'town', 'historic', 'tourism', 'neighbourhood', 'amenity', 'locality']: try: location.raw["address"][attribute] except: nominatim_dict[attribute] = '' else: nominatim_dict[attribute] = location.raw["address"][attribute] logging.info('Nomatim %s %s' % (location.raw["address"], nominatim_dict)) # Geonames service geonames_dict = {} geolocator = GeoNames(username="biokomiker") try: location = geolocator.reverse(query, find_nearby_type="findNearby", exactly_one=False) except GeocoderTimedOut as e: logging.debug("Error: geocode failed on input %s with message %s" % (query, e.message)) return for attribute in ['toponymName', 'name']: try: location[0].raw[attribute] except: geonames_dict[attribute] = '' else: geonames_dict[attribute] = location[0].raw[attribute] logging.info('Geonames %s %s' % (location[0].raw, geonames_dict)) city_village = nominatim_dict['village'] + nominatim_dict['city'] + nominatim_dict['town'] ort = Counter( [nominatim_dict[k] for k in ['historic', 'tourism', 'neighbourhood', 'amenity', 'locality']] + [geonames_dict[k] for k in ['toponymName', 'name']]) ort.pop('') try: final_ort = ort.most_common(2)[0][0] + ' / ' + ort.most_common(2)[1][0] except: final_ort = ort.most_common(1)[0][0] IPTC = 'Iptc.Application2.' metadata[IPTC + 'City'] = city_village metadata['Xmp.photoshop.City'] = city_village metadata[IPTC + 'CountryName'] = nominatim_dict['country'] metadata['Xmp.photoshop.Country'] = nominatim_dict['country'] metadata.try_clear_tag(IPTC + 'LocationName') metadata.try_clear_tag('Xmp.iptc.Location') metadata.set_tag_string(IPTC + 'LocationName', final_ort) metadata.set_tag_string('Xmp.iptc.Location', final_ort) now = datetime.datetime.now() metadata['Xmp.photoshop.CaptionWriter'] = 'Nominatim & GeoNames @ %s-%s-%s' % (now.year, now.month, now.day) metadata.save_file() logging.info("\nFinal annotation:\nOrt: %s \nCity/Village: %s \nCountry: %s \nElevation: %s " % ( metadata[IPTC + 'LocationName'], metadata[IPTC + 'City'], metadata[IPTC + 'CountryName'], true_elevation)) print("\nFinal annotation\nOrt: %s \nCity/Village: %s \nCountry: %s \nElevation: %s " % ( metadata[IPTC + 'LocationName'], metadata[IPTC + 'City'], metadata[IPTC + 'CountryName'], true_elevation)) sleep(slowdown) return Git commit 8c6b332ee8c9dc0465d2fa9532b29f5996c094c5 by Maik Qualmann. Committed on 04/12/2022 at 08:34. Pushed by mqualmann into branch 'master'. add support for country codes Related: bug 410425, bug 351987 M +6 -1 core/utilities/geolocation/geoiface/items/gpsitemcontainer.cpp M +309 -52 core/utilities/geolocation/geoiface/reversegeocoding/rgwidget.cpp M +4 -0 core/utilities/geolocation/geoiface/reversegeocoding/rgwidget.h https://invent.kde.org/graphics/digikam/commit/8c6b332ee8c9dc0465d2fa9532b29f5996c094c5 |