Python:Images - Revision history

Hdridder at 13:32, 20 July 2025

2025-07-20T13:32:59Z

← Older revision		Revision as of 13:32, 20 July 2025
Line 10:		Line 10:

	;from exiftool import ExfiToolHelper		;from exiftool import ExfiToolHelper
	:ExifToolHelper is a wrapper for ExifTool with some ~~helper~~ functionality.		:ExifToolHelper is a wrapper for ExifTool with some helpful functionality.
	;et = ExifToolHelper()		;et = ExifToolHelper()
	:Instantiate an ExifToolHelper object. It opens an instance of exiftool in batch mode. Exiftool in closed when the object is terminated		:Instantiate an ExifToolHelper object. It opens an instance of exiftool in batch mode. Exiftool in closed when the object is terminated
Line 16:		Line 16:
	:Destroying the ExifToolHelper object terminates the exiftool instance.		:Destroying the ExifToolHelper object terminates the exiftool instance.
	;<nowiki>with ExifToolHelper() as et:</nowiki>		;<nowiki>with ExifToolHelper() as et:</nowiki>
	:~~Auto~~ terminate the ExifToolHelper object at the end of the block		:Automatically terminate the ExifToolHelper object at the end of the block

			;et.get_metadata(<filenames>)
			:Get all metadata from <filenames>, <filenames> can be a single path or a list of paths
			:Returns a list of dictionaries {<tagname>:<tagvalue>,..}. <tagvalue> can be any type.
			;<nowiki>et.set_tags(<filenames>, tags={"Subject": ["Holiday", "Spain", "Trees"]})</nowiki>
			:Set the XMP:Subject tag in <filenames>.

			Example code:
	<syntaxhighlight lang=python>		<syntaxhighlight lang=python>
	from exiftool import ExfiToolHelper		from exiftool import ExfiToolHelper

Hdridder at 10:55, 18 July 2025

2025-07-18T10:55:58Z

← Older revision		Revision as of 10:55, 18 July 2025
Line 11:		Line 11:
	;from exiftool import ExfiToolHelper		;from exiftool import ExfiToolHelper
	:ExifToolHelper is a wrapper for ExifTool with some helper functionality.		:ExifToolHelper is a wrapper for ExifTool with some helper functionality.
			;et = ExifToolHelper()
			:Instantiate an ExifToolHelper object. It opens an instance of exiftool in batch mode. Exiftool in closed when the object is terminated
			;et.terminate()
			:Destroying the ExifToolHelper object terminates the exiftool instance.
			;<nowiki>with ExifToolHelper() as et:</nowiki>
			:Auto terminate the ExifToolHelper object at the end of the block

	<syntaxhighlight lang=python>		<syntaxhighlight lang=python>
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	with ExifToolHelper() as et:		with ExifToolHelper() as et:
	~~metadata~~ = et.get_metadata(filename)		metadatalist = et.get_metadata(filename)
	for ~~ifd~~ in ~~metadata~~:		for metadata in metadatalist:
	~~if isinstance(ifd, dict):~~		for tag, value in metadata.items():
	for tag, value in ~~ifd~~.items():		print(f"{tag}: {value}")
	print(f"{tag}: {value~~}")~~
	~~else:~~
	~~print(f"ifd {ifd~~}")

	# Set IPTC:Keywords (not ~~show~~ by Debian eog (Afbeeldingsweergave in Dutch))		# Set IPTC:Keywords (not shown by Debian eog (Afbeeldingsweergave in Dutch))
	with ExifToolHelper() as et:		with ExifToolHelper() as et:
	et.set_tags([filename],		et.set_tags([filename], tags={"Keywords": ["sunny", "nice day", "cool", "awesome"]})
	tags={"Keywords": ["sunny", "nice day", "cool", "awesome"]}
	)

	# Set XMP:Subject		# Set XMP:Subject (XMP is newer than IPTC, I prefer to use this)
	with ExifToolHelper() as et:		with ExifToolHelper() as et:
	et.set_tags([filename],		et.set_tags([filename], tags={"Subject": ["Holiday", "Spain"]})
	tags={"Subject": ["Holiday", "Spain"]}
	)
	</syntaxhighlight>		</syntaxhighlight>

Hdridder at 20:09, 14 July 2025

2025-07-14T20:09:58Z

← Older revision		Revision as of 20:09, 14 July 2025
Line 9:		Line 9:
	PyExifTool is not available as a Debian package. Install it in a [[Python#Virtual_environment]]		PyExifTool is not available as a Debian package. Install it in a [[Python#Virtual_environment]]

	;from exiftool import ExfiToolHelper ~~as et~~		;from exiftool import ExfiToolHelper
	:ExifToolHelper is a wrapper for ExifTool with some helper functionality.		:ExifToolHelper is a wrapper for ExifTool with some helper functionality.

Line 25:		Line 25:
	print(f"ifd {ifd}")		print(f"ifd {ifd}")

	# Set IPTC:Keywords		# Set IPTC:Keywords (not show by Debian eog (Afbeeldingsweergave in Dutch))
	with ExifToolHelper() as et:		with ExifToolHelper() as et:
	et.set_tags([filename],		et.set_tags([filename],

Hdridder at 20:06, 14 July 2025

2025-07-14T20:06:40Z

← Older revision		Revision as of 20:06, 14 July 2025
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	Images can have meta-data embedded. Most used is Exif[https://nl.wikipedia.org/wiki/Exchangeable_image_file_format], other formats are IPT[https://nl.wikipedia.org/wiki/IPTC] and XMP[https://nl.wikipedia.org/wiki/Extensible_Metadata_Platform].		Images can have meta-data embedded. Most used is Exif[https://nl.wikipedia.org/wiki/Exchangeable_image_file_format], other formats are IPT[https://nl.wikipedia.org/wiki/IPTC] and XMP[https://nl.wikipedia.org/wiki/Extensible_Metadata_Platform].

	;import ~~pyexiv2~~		It appears that [https://exiftool.org/ exiftool] is the way to go. [https://pypi.org/project/PyExifTool/ PyExifTool] is a python wrapper for it.
	:~~Module that handles all types of metadata~~
			In Debian exiftool is provided by libimage-exiftool-perl. That is automatically selected when you <code>apt install exiftool</code>.

			PyExifTool is not available as a Debian package. Install it in a [[Python#Virtual_environment]]

			;from exiftool import ExfiToolHelper as et
			:ExifToolHelper is a wrapper for ExifTool with some helper functionality.

	<syntaxhighlight lang=python>		<syntaxhighlight lang=python>
	import ~~pyexiv2~~		from exiftool import ExfiToolHelper
			import json

			with ExifToolHelper() as et:
			metadata = et.get_metadata(filename)
			for ifd in metadata:
			if isinstance(ifd, dict):
			for tag, value in ifd.items():
			print(f"{tag}: {value}")
			else:
			print(f"ifd {ifd}")

			# Set IPTC:Keywords
			with ExifToolHelper() as et:
			et.set_tags([filename],
			tags={"Keywords": ["sunny", "nice day", "cool", "awesome"]}
			)

	~~metadata = pyexiv2.ImageMetadata~~(~~imagefile~~)		# Set XMP:Subject
	~~metadata~~.~~read~~()		with ExifToolHelper() as et:
	~~print(f~~"~~Metadata for {imagefile}~~")		et.set_tags([filename],
	~~for key, value in metadata.items()~~:		tags={"Subject": ["Holiday", "Spain"]}
	~~print(f~~"~~{key}~~, ~~{value~~}")		)
	</syntaxhighlight>		</syntaxhighlight>

Hdridder: Created page with "Category:Python Images can have meta-data embedded. Most used is Exif[https://nl.wikipedia.org/wiki/Exchangeable_image_file_format], other formats are IPT[https://nl.wikipedia.org/wiki/IPTC] and XMP[https://nl.wikipedia.org/wiki/Extensible_Metadata_Platform]. ;import pyexiv2 :Module that handles all types of metadata import pyexiv2 metadata = pyexiv2.ImageMetadata(imagefile) metadata.read() print(f"Metadata for {imagefile}") for key,..."

2025-07-13T19:23:11Z

Created page with "Category:Python Images can have meta-data embedded. Most used is Exif[https://nl.wikipedia.org/wiki/Exchangeable_image_file_format], other formats are IPT[https://nl.wikipedia.org/wiki/IPTC] and XMP[https://nl.wikipedia.org/wiki/Extensible_Metadata_Platform]. ;import pyexiv2 :Module that handles all types of metadata <syntaxhighlight lang=python> import pyexiv2 metadata = pyexiv2.ImageMetadata(imagefile) metadata.read() print(f"Metadata for {imagefile}") for key,..."

New page

[[Category:Python]]

Images can have meta-data embedded. Most used is Exif[https://nl.wikipedia.org/wiki/Exchangeable_image_file_format], other formats are IPT[https://nl.wikipedia.org/wiki/IPTC] and XMP[https://nl.wikipedia.org/wiki/Extensible_Metadata_Platform].

;import pyexiv2
:Module that handles all types of metadata

<syntaxhighlight lang=python>
import pyexiv2

metadata = pyexiv2.ImageMetadata(imagefile)
metadata.read()
print(f"Metadata for {imagefile}")
for key, value in metadata.items():
print(f"{key}, {value}")
</syntaxhighlight>