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September 9, 2018 03:23
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Extract GPS coordinates from EXIF of images and create point kmls
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# Extract Location information from EXIF of drone images and creat a kml | |
# Kyaw Naing Win | |
# 2018-09-09 | |
import exifread, os | |
import datetime | |
from fastkml import kml | |
from shapely.geometry import Point | |
today = str(datetime.date.today()) | |
ctime = str(datetime.datetime.now().time()) | |
today = today + ", " + ctime | |
path = "D:\\Drone_missions\\shwesantaw\\100MEDIA" | |
# Create the root KML object | |
k = kml.KML() | |
ns = '{http://www.opengis.net/kml/2.2}' | |
# Create a KML Document and add it to the KML root object | |
d = kml.Document(ns, 'docid', 'Image locations', 'Created on ' + today) | |
k.append(d) | |
# Create a KML Folder and add it to the Document | |
fkml = kml.Folder(ns, 'fid', 'f name', 'f description') | |
d.append(fkml) | |
for file in os.listdir(path): | |
if file.endswith(".JPG"): | |
f = open(path+"\\"+file, 'rb') | |
tags = exifread.process_file(f) | |
#extract lat, lon, alt tags | |
exif_lat = tags["GPS GPSLatitude"] | |
exif_lon = tags["GPS GPSLongitude"] | |
exif_alt = tags["GPS GPSAltitude"] | |
#latitude | |
lat_deg = exif_lat.values[0].num # values are ratio data type | |
lat_min = exif_lat.values[1].num | |
lat_sec = exif_lat.values[2].num/exif_lat.values[2].den | |
lat = lat_deg + lat_min/60 + lat_sec/3600 # covert into decimal degree | |
#longitude | |
lon_deg = exif_lon.values[0].num # values are ratio data type | |
lon_min = exif_lon.values[1].num | |
lon_sec = exif_lon.values[2].num/exif_lon.values[2].den | |
lon = lon_deg + lon_min/60 + lon_sec/3600 # covert into decimal degree | |
#altitude | |
alt = exif_alt.values[0].num/ exif_alt.values[0].den #convert ratio to decimal | |
#print (file,"- lat: ", lat, ", Lon: ", lon, ", alt: ", alt) | |
p = kml.Placemark(ns, 'id', file, 'description') | |
p.geometry = Point(lon,lat, alt) | |
fkml.append(p) | |
f_kml = open(path+"\\"+"drone_img_locations.kml", "w+") | |
f_kml.write(k.to_string()) | |
f_kml.close() | |
print ("drone_img_locations.kml has been created") |
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