Re: Embedding Alt Text in an Image File

It looks like the IPTC standard released in 2021 for image metadate includes fields for alt-text and extended descriptions. My experience has been that this is not widely supported by web platforms. Adobe products and Photo Mechanic support it; Adobe Bridge is legally free and supports it. Adobe Acr...

https://community.adobe.com

I wrote a web page about processing raw data from my camera to make an image for viewing on the web.

https://www.rsok.com/~jrm/2026jan07_cardinal/index.html

#birds #imageprocessing #photography #software #gimp #Debian #Linux #exiftool #jpegli #graphicsmagick #ksh #ICC #IPTC #ITU #MWG

Full day with content credentials discussions, exploring ways to help media orgs to adopt and utilise the benefits and forging action plans for the nexts and following steps.

Also super useful to meet people in person - much much easier to continue offsite and asynchronous talk with various orgs and people.

Great day, and really good location and venue, too!

#C2PA #ContentCredentials #ChainOfTrust #EBU #IPTC

so **each** key/value-pair of #metadata can be about 64kB.

This is sufficient to hold most annotations stored as #EmbeddedMetadata currently present in most file formats.
(eg #mp3, #mp4, #iptc, #tiff, #jpg, etc)

But from then on, the file-format becomes irrelevant for this task!

#ahalodeck #digipres #audiovisual #cataloging

#TIL the `Object Name` field in #IPTC contains the title but truncated at 64 characters, whereas the `ImageTitle` field in #XMP or `Title`field in #DublinCore contain the full title. 🤷‍♂️

When you want to find the needle in the haystack… hum wait, no, a field in a photo metadata, there's #ExifTool: https://exiftool.org/TagNames/

#photography

⚓️ https://nicolas-hoizey.com/notes/2025/05/30/1/

ExifTool Tag Names

In GIMP 3.0, when you export an image you can edit the image metadata. GIMP 3.0 now supports IPTC image metadata.

IPTC (International Press Telecommunications Council) is a standard for adding descriptive information to images, including details like copyright, photographer, and captions. This metadata is used to simplify the distribution and management of news content.

https://iptc.org/standards/photo-metadata/

#GIMP #GIMP3 #IPTC

Photo Metadata IPTC

IPTC Photo Metadata sets the industry standard for administrative, descriptive, and copyright information about images.

IPTC
MC @figagrow.bsky.social and contestants at the opening bar night of @iptc.dog (International Puppy & Trainer Contest ( #iptc #iptc2025) at @jackhammerchicago.bsky.social in Chicago #pupplay #puppyplay #pupplaycommunity #puppyplaycommunity #kink

Do you #upload and/ or send #photos without #metadata/ #IPTC data/ #XMP data out of #privacy #concern?

Well, fuck off once more: https://geospy.ai/

#DataPrivacy #PrivacyMatters

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I can see the Alt-Text in the jpg- file. If i understand this correctly, the Alt-Text is part of #IPTC Core standard.

https://iptc.org/standards/photo-metadata/iptc-standard/

Btw: it doesn't work in #pixelfed either.

IPTC Photo Metadata Standard - IPTC

The IPTC Photo Metadata Standard is the most widely used standard to describe photos. It consists of two schemas – IPTC Core and IPTC Extension.

IPTC
Been busy deep diving into #digikam and #darktable... But I've entered a deeper rabbit hole —my really messy photo #metadata! Learnt a lot about #xmp #exif and #iptc, and using #exiftool (which is an amazing tool by Phil Harvey). #PhotoManagement #dam #photometadata