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This article mainly introduces "how to use Python to modify the geographical location of a picture". In daily operation, I believe many people have doubts about how to use Python to modify the geographical location of a picture. The editor consulted all kinds of materials and sorted out a simple and easy-to-use method of operation. I hope it will be helpful to answer the question of "how to use Python to modify the geographical location of a picture". Next, please follow the editor to study!

1. Target scene

In fact, it is very convenient to modify the geographical location of a picture with Python.

two。 Write code

Before writing a script, you need to install the dependent library in a virtual environment: piexif

In the first step, we read the longitude and latitude of the original image, and then format the geographic location as a floating-point type.

After getting the GPS image coordinates, you need to convert the Martian coordinate system data.

Def read_image (self Image_path): "" start processing pictures exifread: read picture properties: return: "" exif_dict = piexif.load (image_path) if exif_dict ['GPS']: # Latitude gps_lati_pre = exif_dict [' GPS'] [2] gps_lati = dms_to_gps (gps_lati_) Pre) # Longitude gps_long_pre = exif_dict ['GPS'] [4] gps_long = dms_to_gps (gps_long_pre) # GPS coordinate to Gaud coordinate lng Lat = wgs84togcj02 (gps_long, gps_lati) print (f "the geographical location of the original image is as follows: longitude: {lng}\ nLatitude: {lat}\ n") return f' {lng}, {lat} 'else: print (f' Sorry! This picture does not contain geographical location!')

The second step is to parse the detailed location of the original image by using the inverse geocoding in the Gaud Web service API.

Def get_address_by_location (self, location): "get the geographic location through latitude and longitude: param location:: return:" params = {'key': self.ak,' location': location, 'sig': self.sign} resp = json.loads (requests.get (url=self.url_regeo) Params=params) .text) if resp and resp.get ('regeocode') and resp.get (' regeocode'). Get ('formatted_address'): address = resp.get (' regeocode'). Get ('formatted_address') print (f' the original image was shot at: {address}\ n') else: print ('api parsing address error Please check ak! \ n')

The third step is to find a geographical location to locate.

First of all, enter the target city and specific address, and use the geocode in the Gaud Web service API to get the geographic location.

Def get_location_by_address (self, city, address): "" through geographical location to get latitude and longitude geocode: https://lbs.amap.com/api/webservice/guide/api/georegeo/: param address:: return: "params = {'key': self.ak,' city': city, 'address': address 'sig': self.sign} resp = json.loads (requests.get (url=self.url_geo, params=params) .text) # get the coordinate address if resp and len (resp.get (' geocodes')) > = 1 and resp.get ('geocodes') [0] .get (' location'): location = resp.get ('geocodes') [0]. Get (' location') gps_data = location.split (' ') # get longitude and latitude gps_long = float (gps_data [0]) gps_lati = float (gps_data [1]) return gps_long, gps_lati else: print (' api parsing address error Please check the Kakushi') Return None

The fourth step is to change the geographical location of the picture.

Because the longitude and latitude data in piexif are tuples, the data to be set needs to be processed once.

Def gps_to_dms (gps_data): "" coordinates are converted to degrees, minutes, seconds (double) 116.397451 http://www.gzhatu.com/du2dfm.html: param gps_data:: return: {1: baked Numeric, 2: ((22,1), (32,1), (945,100)), 3: bounded Emission, 4: (114,1), (1,1), (3445) Rounding down gps_degree = math.floor (gps_data) gps_data_temp1 = (gps_data-gps_degree) * 60 # minutes gps_minute = math.floor (gps_data_temp1) gps_data_temp2 = gps_data_temp1-gps_minute # seconds, 4 decimal places gps_second = round (gps_data_temp2 * 60) 2) # Note: seconds must be converted to shaping result = ((gps_degree, 1), (gps_minute, 1), (int (gps_second * 100,100)) return result

Finally, write the latitude and longitude data in the correct format to the picture.

Def write_image (self, image_path, gps_long Gps_lati): "modify the attributes of all files under the folder: param image_path: folder path: return:" # read the picture img = Image.open (image_path) try: exif_dict = piexif.load (img.info ['exif']) except: print (' loading file geographic location is abnormal!') Return # modify Geographic location # GPS GPSLatitudeRef:N # GPS GPSLatitude: [22,32,189 + 20] # GPS GPSLongitudeRef:E # GPS GPSLongitude: [114,1 689 take 20] exif_dict ['GPS'] [2] = gps_to_dms (gps_lati) exif_dict [' GPS'] [4] = gps_to_dms (gps_long) exif_bytes = piexif.dump (exif_dict) # write img.save (image_path, 'jpeg', exif=exif_bytes) to the new picture The study on "how to use Python to modify the geographical location of a picture" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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