Storing metadata in files
Embedded
© Lead Image © Nasir Khan, 123RF.com
With the Python XMP Toolkit, programmers can develop applications that store metadata in files.
Metadata is information about the contents of objects like graphic files, digital videos, or documents and can include the name of a photograph, the author, and the project, as well as details about the license used to publish the item. Subject catalogs, thumbnails, or coordinates of image areas containing faces or other items are also part of the larger realm of metadata.
A range of standards control the exchange of datasets across digital objects. The prevailing technique is to retain the metadata in the file itself and copy that data along with the file. For example, a widespread technical standard for metadata in digital photography is the Exchangeable Image File (Exif) format [1] for JPEG, JFIF, and TIFF images.
With Exif, digital cameras and smartphones can usually write a full range of technical information for inclusion in image data, such as date and time, camera model, focal length, and shutter speed. The standard even includes thumbnails and GPS coordinates.
[...]
Buy this article as PDF
(incl. VAT)
Buy Linux Magazine
US / Canada
UK / Australia
Subscribe to our Linux Newsletters
Find Linux and Open Source Jobs
Subscribe to our ADMIN Newsletters
Support Our Work
Linux Magazine content is made possible with support from readers like you. Please consider contributing when you’ve found an article to be beneficial.
News
-
Cairo Dock 3.6 Now Available for More Compositors
If you're a fan of third-party desktop docks, then the latest release of Cairo Dock with Wayland support is for you.
-
System76 Unleashes Pop!_OS 24.04 Beta
System76's first beta of Pop!_OS 24.04 is an impressive feat.
-
Linux Kernel 6.17 is Available
Linus Torvalds has announced that the latest kernel has been released with plenty of core improvements and even more hardware support.
-
Kali Linux 2025.3 Released with New Hacking Tools
If you're a Kali Linux fan, you'll be glad to know that the third release of this famous pen-testing distribution is now available with updates for key components.
-
Zorin OS 18 Beta Available for Testing
The latest release from the team behind Zorin OS is ready for public testing, and it includes plenty of improvements to make it more powerful, user-friendly, and productive.
-
Fedora Linux 43 Beta Now Available for Testing
Fedora Linux 43 Beta ships with Gnome 49 and KDE Plasma 6.4 (and other goodies).
-
USB4 Maintainer Leaves Intel
Michael Jamet, one of the primary maintainers of USB4 and Thunderbolt drivers, has left Intel, leaving a gaping hole for the Linux community to deal with.
-
Budgie 10.9.3 Now Available
The latest version of this elegant and configurable Linux desktop aligns with changes in Gnome 49.
-
KDE Linux Alpha Available for Daring Users
It's official, KDE Linux has arrived, but it's not quite ready for prime time.
-
AMD Initiates Graphics Driver Updates for Linux Kernel 6.18
This new AMD update focuses on power management, display handling, and hardware support for Radeon GPUs.