PYTHON Language

1) Allow the user to enter a path to a directory containing jpeg files. 2) Using that path, process only the .jpg files contained in that folder (use the testimages.zip set of images) 3) Extract, EXIF data from each of the images and create a pretty table output Note, your script can extract other EXIF data that you find interesting 4) Finally, you will Plot the geolocation of each image on a map.

''' # Usage Example: # python Assignment 6 # # Requirement: Python 3.x # # Requirement: 3rd Party Library that is utilized is: PILLOW # pip install PILLOW from the command line # this is already installed in the Virtual Desktop ''' LIBRARY IMPORT SECTION ''' import os # Python Standard Library : Operating System Methods import sys # Python Standard Library : System Methods from datetime import datetime # Python Standard Libary datetime method from Standard Library # import the Python Image Library # along with TAGS and GPS related TAGS # Note you must install the PILLOW Module # pip install PILLOW from PIL import Image from PIL.ExifTags import TAGS, GPSTAGS # import the prettytable library from prettytable import PrettyTable def ExtractGPSDictionary(fileName): ''' Function to Extract GPS Dictionary ''' try: pilImage = Image.open(fileName) exifData = pilImage._getexif() except Exception: # If exception occurs from PIL processing # Report the return None, None # Interate through the exifData # Searching for GPS Tags imageTimeStamp = "NA" cameraModel = "NA" cameraMake = "NA" gpsData = False gpsDictionary = {} if exifData: for tag, theValue in exifData.items(): # obtain the tag tagValue = TAGS.get(tag, tag) print(tagValue) # Collect basic image data if available if tagValue == 'DateTimeOriginal': imageTimeStamp = exifData.get(tag).strip() if tagValue == "Make": cameraMake = exifData.get(tag).strip() if tagValue == 'Model': cameraModel = exifData.get(tag).strip() # check the tag for GPS if tagValue == "GPSInfo": gpsData = True; # Found it ! # Now create a Dictionary to hold the GPS Data # Loop through the GPS Information for curTag in theValue: gpsTag = GPSTAGS.get(curTag, curTag) gpsDictionary[gpsTag] = theValue[curTag] basicExifData = [imageTimeStamp, cameraMake, cameraModel] return gpsDictionary, basicExifData else: return None, None # End ExtractGPSDictionary ============================ def ExtractLatLon(gps): ''' Function to Extract Lattitude and Longitude Values ''' # to perform the calcuation we need at least # lat, lon, latRef and lonRef try: latitude = gps["GPSLatitude"] latitudeRef = gps["GPSLatitudeRef"] longitude = gps["GPSLongitude"] longitudeRef = gps["GPSLongitudeRef"] lat, lon = ConvertToDegreesV1(latitude, latitudeRef, longitude, longitudeRef) gpsCoor = {"Lat": lat, "LatRef":latitudeRef, "Lon": lon, "LonRef": longitudeRef} return gpsCoor except Exception as err: return None # End Extract Lat Lon ============================================== def ConvertToDegreesV1(lat, latRef, lon, lonRef): degrees = lat[0] minutes = lat[1] seconds = lat[2] latDecimal = float ( (degrees +(minutes/60) + (seconds)/(60*60) ) ) if latRef == 'S': latDecimal = latDecimal*-1.0 degrees = lon[0] minutes = lon[1] seconds = lon[2] lonDecimal = float ( (degrees +(minutes/60) + (seconds)/(60*60) ) ) if latRef == 'W': lonDecimal = lonDecimal*-1.0 return(latDecimal, lonDecimal) ''' MAIN PROGRAM ENTRY SECTION ''' if __name__ == "__main__": ''' pyExif Main Entry Point ''' print(" Extract EXIF Data from JPEG Files") print("Script Started", str(datetime.now())) print() ''' PROCESS EACH JPEG FILE SECTION ''' latLonList = [] targetFile = "biking.jpg" # file must be located in the same folder if os.path.isfile(targetFile): gpsDictionary, exifList = ExtractGPSDictionary(targetFile) if exifList: TS = exifList[0] MAKE = exifList[1] MODEL = exifList[2] else: TS = 'NA' MAKE = 'NA' MODEL = 'NA' print("Photo Details") print("-------------") print("TimeStamp: ", TS) print("Camera Make: ", MAKE) print("Camera Model: ", MODEL) if (gpsDictionary != None): # Obtain the Lat Lon values from the gpsDictionary # Converted to degrees # The return value is a dictionary key value pairs dCoor = ExtractLatLon(gpsDictionary) print(" Geo-Location Data") print("-----------------") if dCoor: lat = dCoor.get("Lat") latRef = dCoor.get("LatRef") lon = dCoor.get("Lon") lonRef = dCoor.get("LonRef") if ( lat and lon and latRef and lonRef): print("Lattitude: ", '{:4.4f}'.format(lat)) print("Longitude: ", '{:4.4f}'.format(lon)) else: print("WARNING No GPS EXIF Data") else: print("WARNING No GPS EXIF Data") else: print("WARNING", " not a valid file", targetFile) # Create Result Table Display using PrettyTable ''' GENERATE RESULTS TABLE SECTION''' ''' Result Table Heading''' resultTable = PrettyTable(['File-Name', 'Lat','Lon', 'TimeStamp', 'Make', 'Model']) ''' Your work starts here '''

python