113 lines
No EOL
3.8 KiB
Python
113 lines
No EOL
3.8 KiB
Python
# Write EXIF metadata to text file for pelican.photos plugin.
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# The original version of this was 100% hard coded script, this version takes arguments to allow you to do more with it as a single install.
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# The original is here - https://gist.github.com/Jeffmackinnon/92c747b30a873129a28cddacfc61fbe1
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import argparse # The library that will parse the arguments.
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import os
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from os import listdir
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from os.path import isdir,isfile, join
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#import PIL
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from PIL import Image
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from PIL.ExifTags import GPSTAGS
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from PIL.ExifTags import TAGS
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from fractions import Fraction
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# Parser
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parser = argparse.ArgumentParser( prog='exif2txt',
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usage='%(prog)s [options] path',
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allow_abbrev=False,
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description='Write EXIF metadata to text file.',
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epilog='it\'s my first public CLI python script, please be kind.',
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)
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parser.add_argument('Path',
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metavar='path',
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type=str,
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help='top level path for with the images'
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)
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#
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# Need to add the parser for what information we want to add for each
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#
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# Execute parse_args()
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args = parser.parse_args()
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input_path = args.Path
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# Test to make sure that the Path given is valid.
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if not os.path.isdir(input_path):
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print('The path specified does not exist')
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sys.exit()
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# The first two functions are borrowed from github user @jpstroop
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# https://gist.github.com/jpstroop/58a21d02370c8ba34dc8f0fdd4206d70
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def _map_key(k):
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try:
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return TAGS[k]
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except KeyError:
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return GPSTAGS.get(k, k)
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# Creates a dictionary of image EXIF meta data from an image, borrowed from a github gist
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def get_exif(image_path):
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metadata = {}
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with Image.open(image_path) as i:
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info = i._getexif()
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try:
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[ metadata.__setitem__(_map_key(k), v) for k, v in info.items() ]
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return metadata
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except AttributeError:
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return None
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# This is from J0el - https://gist.github.com/Jeffmackinnon/92c747b30a873129a28cddacfc61fbe1?permalink_comment_id=4185193#gistcomment-4185193
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# A couple of minor tweaks to make it work
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def exposure(ExposureTime):
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try:
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time = float(ExposureTime)
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if time > 1:
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return(ExposureTime)
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else:
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return( str(Fraction(time).limit_denominator()))
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except:
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return(ExposureTime)
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#Creates a text file with some exif meta data.
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def write_exif_file(directory):
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# Open the exif.txt file, create if it doesn't exist, in the current folder.
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txt = open(directory +'/exif.txt', 'w')
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for file in os.listdir(directory):
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# check the files which are end with specific extension
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# Everything that I want to have EXIF information for is a jpg, but you can add others too.
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if file.endswith(".jpg"):
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# Need to iterate through the files in the list and pass each to the
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image = get_exif(directory +'/'+os.path.join(file))
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txt.write(
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os.path.join(file) + ': ' +
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str(
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image.get('Model')) +
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' with a ' + str(image.get('LensModel')) +
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' - ' + str(exposure(image.get('ExposureTime'))) + 's, ' + # I want to change this to fractions, but it works for now.
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'f/' + str(image.get('FNumber')) +
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' at ISO-' + str(image.get('ISOSpeedRatings')) +
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'\n'
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)
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# Close the text file now that we are done with it.
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txt.close()
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return None
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# This walks through the directories and for each it calls the write exif file function
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for root, subdirectories, files in os.walk(input_path):
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for subdirectory in subdirectories:
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print(os.path.join(root, subdirectory))
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write_exif_file(os.path.join(root, subdirectory)) |