Python exifread

Python利用exifread库来解析照片的经纬度，对接百度地图API显示拍摄地点。

 

import exifreadimport reimport jsonimport requestsdef latitude_and_longitude_convert_to_decimal_system(*arg):    """    经纬度转为小数, 作者尝试适用于iphone6、ipad2以上的拍照的照片，    :param arg:    :return: 十进制小数    """    return float(arg[0]) + ((float(arg[1]) + (float(arg[2].split('/')[0]) / float(arg[2].split('/')[-1]) / 60)) / 60)def find_GPS_image(pic_path):    GPS = {}    date = ''    with open(pic_path, 'rb') as f:        tags = exifread.process_file(f)        for tag, value in tags.items():            if re.match('GPS GPSLatitudeRef', tag):                GPS['GPSLatitudeRef'] = str(value)            elif re.match('GPS GPSLongitudeRef', tag):                GPS['GPSLongitudeRef'] = str(value)            elif re.match('GPS GPSAltitudeRef', tag):                GPS['GPSAltitudeRef'] = str(value)            elif re.match('GPS GPSLatitude', tag):                try:                    match_result = re.match('\[(\w*),(\w*),(\w.*)/(\w.*)\]', str(value)).groups()                    GPS['GPSLatitude'] = int(match_result[0]), int(match_result[1]), int(match_result[2])                except:                    deg, min, sec = [x.replace(' ', '') for x in str(value)[1:-1].split(',')]                    GPS['GPSLatitude'] = latitude_and_longitude_convert_to_decimal_system(deg, min, sec)            elif re.match('GPS GPSLongitude', tag):                try:                    match_result = re.match('\[(\w*),(\w*),(\w.*)/(\w.*)\]', str(value)).groups()                    GPS['GPSLongitude'] = int(match_result[0]), int(match_result[1]), int(match_result[2])                except:                    deg, min, sec = [x.replace(' ', '') for x in str(value)[1:-1].split(',')]                    GPS['GPSLongitude'] = latitude_and_longitude_convert_to_decimal_system(deg, min, sec)            elif re.match('GPS GPSAltitude', tag):                GPS['GPSAltitude'] = str(value)            elif re.match('.*Date.*', tag):                date = str(value)    return {'GPS_information': GPS, 'date_information': date}def find_address_from_GPS(GPS):    print(GPS)    """    使用Geocoding API把经纬度坐标转换为结构化地址。    :param GPS:    :return:    """    secret_key = 'xxxxxxxxxxxxxxxxxxxx'             # 百度地图创应用的秘钥      if not GPS['GPS_information']:        return '该照片无GPS信息'    lat, lng = GPS['GPS_information']['GPSLatitude'], GPS['GPS_information']['GPSLongitude']    baidu_map_api = "http://api.map.baidu.com/geocoder/v2/?ak={0}&callback=renderReverse&location={1},{2}s&output=json&pois=0".format(        secret_key, lat, lng)    response = requests.get(baidu_map_api)    content = response.text.replace("renderReverse&&renderReverse(", "")[:-1]    baidu_map_address = json.loads(content)    formatted_address = baidu_map_address["result"]["formatted_address"]    # province = baidu_map_address["result"]["addressComponent"]["province"]    # city = baidu_map_address["result"]["addressComponent"]["city"]    # district = baidu_map_address["result"]["addressComponent"]["district"]    return formatted_addressGPS_info = find_GPS_image(pic_path='lllll.jpg')       # 照片address = find_address_from_GPS(GPS=GPS_info)print(address)