python两种方式实现读写航拍影像JPG图片的GPS坐标

import csv,os import glob import piexif from PIL import Image # 十进制转度分秒 def decimaltodegree(decimal): deg = int(decimal) min = int((decimal - deg) * 60) sec = (((decimal - deg) * 60) - min)*60 return int(deg),int(min),int(sec*accuracy) # 根据坐标值获取参数 def getRef(value, loc): if value < 0: return loc[0] elif value > 0: return loc[1] if __name__ == "__main__": jpgDir="./jpg/" gpsDir="gps_write.csv" # 1、读取表格坐标数据 gps_dict={} with open(gpsDir, encoding="utf-8-sig", mode="r") as f: reader = csv.DictReader(f) for row in reader: gps_dict[row['name']]={"lon":row['lon'],"lat":row['lat'],"altitude":row['altitude']} # 2、读取所有照片路径 jpgs=glob.glob(jpgDir+"*.jpg") # 3、坐标写入jpg图片 accuracy=10000000 #用作精度的参数，几个0就能保留几位小数，这边设置7位（默认最长） for src_filename in jpgs: jpgname=os.path.basename(src_filename)[:-4] lat=float(gps_dict[jpgname]['lat']) lon=float(gps_dict[jpgname]['lon']) altitude=int(float(gps_dict[jpgname]['altitude'])*accuracy) lat_deg,lat_min,lat_sec=decimaltodegree(lat) lon_deg,lon_min,lon_sec=decimaltodegree(lon) gps_ifd = {piexif.GPSIFD.GPSVersionID: (2, 0, 0, 0), piexif.GPSIFD.GPSAltitudeRef: 0, piexif.GPSIFD.GPSLongitudeRef: getRef(lon, ["W", "E"]), piexif.GPSIFD.GPSLatitudeRef: getRef(lat, ["S", "N"]), piexif.GPSIFD.GPSLongitude: ((lon_deg, 1), (lon_min, 1), (lon_sec, accuracy)),# (a,b)表示的值为a/b piexif.GPSIFD.GPSLatitude: ((lat_deg, 1), (lat_min, 1), (lat_sec, accuracy)), piexif.GPSIFD.GPSAltitude: (altitude, accuracy) } exif_dict = {"GPS":gps_ifd} piexif.insert(piexif.dump(exif_dict),src_filename)