|
| 1 | +# Disclaimer: This script is for educational purposes only. |
| 2 | +# Do not use against any photos that you don't own or have authorization to test. |
| 3 | + |
| 4 | +#!/usr/bin/env python3 |
| 5 | + |
| 6 | +# Please note: |
| 7 | +# This program is for .JPG and .TIFF format files. The program could be extended to support .HEIC, .PNG and other formats. |
| 8 | +# Installation and usage instructions: |
| 9 | +# 1. Install Pillow (Pillow will not work if you have PIL installed): |
| 10 | +# python3 -m pip install --upgrade pip |
| 11 | +# python3 -m pip install --upgrade Pillow |
| 12 | +# 2. Add .jpg images downloaded from Flickr to subfolder ./images from where the script is stored. |
| 13 | +# Try the following Flickr account: https://www.flickr.com/photos/194419969@N07/? (Please don't use other Flickr accounts). |
| 14 | +# Note most social media sites strip exif data from uploaded photos. |
| 15 | + |
| 16 | +importos |
| 17 | +importcsv |
| 18 | +fromPILimportImage |
| 19 | +fromPIL.ExifTagsimportGPSTAGS,TAGS |
| 20 | + |
| 21 | + |
| 22 | +# Helper function |
| 23 | +defcreate_google_maps_url(gps_coords): |
| 24 | +# Exif data stores coordinates in degree/minutes/seconds format. To convert to decimal degrees. |
| 25 | +# We extract the data from the dictionary we sent to this function for latitudinal data. |
| 26 | +dec_deg_lat=convert_decimal_degrees(float(gps_coords["lat"][0]),float(gps_coords["lat"][1]),float(gps_coords["lat"][2]),gps_coords["lat_ref"]) |
| 27 | +# We extract the data from the dictionary we sent to this function for longitudinal data. |
| 28 | +dec_deg_lon=convert_decimal_degrees(float(gps_coords["lon"][0]),float(gps_coords["lon"][1]),float(gps_coords["lon"][2]),gps_coords["lon_ref"]) |
| 29 | +# We return a search string which can be used in Google Maps |
| 30 | +returnf"https://maps.google.com/?q={dec_deg_lat},{dec_deg_lon}" |
| 31 | + |
| 32 | + |
| 33 | +# Converting to decimal degrees for latitude and longitude is from degree/minutes/seconds format is the same for latitude and longitude. So we use DRY principles, and create a seperate function. |
| 34 | +defconvert_decimal_degrees(degree,minutes,seconds,direction): |
| 35 | +decimal_degrees=degree+minutes/60+seconds/3600 |
| 36 | +# A value of "S" for South or West will be multiplied by -1 |
| 37 | +ifdirection=="S"ordirection=="W": |
| 38 | +decimal_degrees*=-1 |
| 39 | +returndecimal_degrees |
| 40 | + |
| 41 | + |
| 42 | +# Print Logo |
| 43 | +print(""" |
| 44 | +______ _ _ ______ _ _ |
| 45 | +| _ \ (_) | | | ___ \ | | | | |
| 46 | +| | | |__ ___ ___ __| | | |_/ / ___ _ __ ___ | |__ __ _| | |
| 47 | +| | | / _` \ \ / / |/ _` | | ___ \/ _ \| '_ ` _ \| '_ \ / _` | | |
| 48 | +| |/ / (_| |\ V /| | (_| | | |_/ / (_) | | | | | | |_) | (_| | | |
| 49 | +|___/ \__,_| \_/ |_|\__,_| \____/ \___/|_| |_| |_|_.__/ \__,_|_| |
| 50 | +
|
| 51 | +
|
| 52 | +
|
| 53 | + _______ _____________ _____ _____ _____ _ |
| 54 | +| ___\ \ / /_ _| ___| |_ _| _ || _ | | |
| 55 | +| |__ \ V / | | | |_ | | | | | || | | | | |
| 56 | +| __| / \ | | | _| | | | | | || | | | | |
| 57 | +| |___/ /^\ \_| |_| | | | \ \_/ /\ \_/ / |____ |
| 58 | +\____/\/ \/\___/\_| \_/ \___/ \___/\_____/ |
| 59 | +
|
| 60 | +
|
| 61 | +""") |
| 62 | + |
| 63 | +# Add files to the folder ./images |
| 64 | +# We assign the cwd to a variable. We will refer to it to get the path to images. |
| 65 | +cwd=os.getcwd() |
| 66 | +# Change the current working directory to the one where you keep your images. |
| 67 | +os.chdir(os.path.join(cwd,"images")) |
| 68 | +# Get a list of all the files in the images directory. |
| 69 | +files=os.listdir() |
| 70 | + |
| 71 | +# Check if you have any files in the ./images folder. |
| 72 | +iflen(files)==0: |
| 73 | +print("You don't have have files in the ./images folder.") |
| 74 | +exit() |
| 75 | +# Loop through the files in the images directory. |
| 76 | + |
| 77 | +# We open a csv file to write the data to it. |
| 78 | +withopen("../exif_data.csv","a",newline="")ascsv_file: |
| 79 | +# We create a writer for the csv format. |
| 80 | +writer=csv.writer(csv_file) |
| 81 | + |
| 82 | +forfileinfiles: |
| 83 | +# We add try except black to handle when there are wrong file formats in the ./images folder. |
| 84 | +try: |
| 85 | +# Open the image file. We open the file in binary format for reading. |
| 86 | +image=Image.open(file) |
| 87 | +print(f"_______________________________________________________________{file}_______________________________________________________________") |
| 88 | +# The ._getexif() method returns a dictionary. .items() method returns a list of all dictionary keys and values. |
| 89 | +gps_coords= {} |
| 90 | +writer.writerow(("Filename",file)) |
| 91 | +# We check if exif data are defined for the image. |
| 92 | +ifimage._getexif()==None: |
| 93 | +writer.writerow((file,"Contains no exif data.")) |
| 94 | +# If exif data are defined we can cycle through the tag, and value for the file. |
| 95 | +else: |
| 96 | +fortag,valueinimage._getexif().items(): |
| 97 | +# If you print the tag without running it through the TAGS.get() method you'll get numerical values for every tag. We want the tags in human-readable form. |
| 98 | +# You can see the tags and the associated decimal number in the exif standard here: https://exiv2.org/tags.html |
| 99 | +tag_name=TAGS.get(tag) |
| 100 | +iftag_name=="GPSInfo": |
| 101 | +forkey,valinvalue.items(): |
| 102 | +# Write the GPS Data value for every key to the csv file. |
| 103 | +writer.writerow((GPSTAGS.get(key), {val})) |
| 104 | +# We add Latitude data to the gps_coord dictionary which we initialized in line 110. |
| 105 | +ifGPSTAGS.get(key)=="GPSLatitude": |
| 106 | +gps_coords["lat"]=val |
| 107 | +# We add Longitude data to the gps_coord dictionary which we initialized in line 110. |
| 108 | +elifGPSTAGS.get(key)=="GPSLongitude": |
| 109 | +gps_coords["lon"]=val |
| 110 | +# We add Latitude reference data to the gps_coord dictionary which we initialized in line 110. |
| 111 | +elifGPSTAGS.get(key)=="GPSLatitudeRef": |
| 112 | +gps_coords["lat_ref"]=val |
| 113 | +# We add Longitude reference data to the gps_coord dictionary which we initialized in line 110. |
| 114 | +elifGPSTAGS.get(key)=="GPSLongitudeRef": |
| 115 | +gps_coords["lon_ref"]=val |
| 116 | +else: |
| 117 | +# We write data not related to the GPSInfo to the csv file. |
| 118 | +writer.writerow((tag_name,value)) |
| 119 | +# We print the longitudinal and latitudinal data which has been formatted for Google Maps. We only do so if the GPS Coordinates exists. |
| 120 | +ifgps_coords: |
| 121 | +# We write the Google Maps Link to the csv file. |
| 122 | +writer.writerow(("Google Maps Link",create_google_maps_url(gps_coords))) |
| 123 | +# Change back to the original working directory. |
| 124 | +exceptIOError: |
| 125 | +print("File format not supported!") |
| 126 | + |
| 127 | +os.chdir(cwd) |