When configuring saving settings for the JPEG format in the Saving Images section of the Configure digiKam window, you can choose between medium and high chroma subsampling, or disable it altogether.
But what is chroma subsampling and what does it do? As you may know, JPEG is a lossy format, which means that it trades quality for a smaller size. One of the methods for achieving a smaller size is to store color information (chroma) at a lower resolution than brightness (a.k.a intensity or luma) data. This is possible due to the fact that the human eye is less sensitive to color than brightness, so discarding color information doesn't produce a perceptible loss of quality.
A new release of digiKam Recipes is ready for your reading pleasure. This version adds two new recipes: Chroma Subsampling Explained (tucked under Configure digiKam) and Create Embeddable Maps with digiKam and uMap.
digiKam team is proud to announce the release of digiKam Software Collection 5.0.0 beta2. This version is the second public release of the new main digiKam version and is a result of the long development process by the team.
This release marks almost complete port of the application to Qt5 and KF5 API. All Qt4/KDE4 code has been removed and many parts have been re-written, reviewed, and tested. Porting to Qt5 required a lot of work, as many important APIs had to be changed or replaced by new ones.
A new release of digiKam Recipes is ready for your perusal. This version features the new Use Exposure Indicators recipe along with the updated Find the Shutter Count Value with digiKam recipe. Astute readers will also notice the new cover. That's all there is to it this time around.
A new release of digiKam Recipes is ready for your reading pleasure. This version features the Using Album Categories recipe and reworked material on using the tagging functionality in digiKam. As always, the new release includes updates, fixes and tweaks.
The digiKam Team is proud to announce the release of digiKam Software Collection 4.14.0.
This version is the result of another bugs triage on KDE bugzilla where more than 20 files have been closed.
Thanks to Maik Qualmann who maintain KDE4 version.
This release will be the last stable release dedicated from 4.x series. We are now focused on next 5.0.0 release planned on spring 2016. This next main version will support Qt5 and KF5. The first beta1 will be released soon.
A new release of digiKam Recipes is ready for your reading pleasure. This version features completely revised material on one of the most complicated subjects in digital photography: color management. The completely rewritten Color Management in digiKam recipe now provides an easy-to-understand introduction to key color management concepts and explains how to set up a color-managed workflow in digiKam. The recipe also offers practical advice on calibrating and profiling digital cameras and displays.
The digiKam Team is proud to announce the release of digiKam Software Collection 4.13.0.
This release is the result of another huge bugs triage on KDE bugzilla where more than 30 files have been closed.
Thanks to Maik Qualmann who maintain KDE4 version while
KF5 port and GSoC 2015 projects are in progress. Both are planned to be completed while sprint 2016.
As with 4.12.0, this new release comes with OSX PKG installers for Maverick, and Yosemite. Note that you must considerate digiKam under OSX as beta stage, not stable as under Linux. Some dysfunctions have been identified and fixed with this release.
PKG installer includes last
Exiv2 0.25,
LibRaw 0.17.0,
and LensFun 0.3.1
which do not exist yet in Macports repository. Exiv2 includes huge fixes about video support which can crash digiKam, and Libraw/Lensfun add new recent camera supports. In the future, we plan to include Hugin CLI tools too required at run-time by Panorama and ExpoBlending tools.
The Randa Meeting is an annual KDE sprint that takes place in Randa, Switzerland. The KDE project is holding a fundraiser to support the Randa Meetings. Participants donate their time to help improve the software you love and this is why we need money to cover hard expenses like accommodation and travel to get the volunteer contributors to Randa.
The Randa Meetings will benefit everyone who uses KDE software. This year, digiKam team will go to Randa meeting to continue and finalize the KF5/Qt5 port. You can support the Randa Meetings by making a donation, following the official page. Thanks in advance...
The digiKam Team is proud to announce the release of digiKam Software Collection 4.12.0.
This release is the result of another huge bugs triage on KDE bugzilla where more than 145 files have been closed.
Thanks to Maik Qualmann who maintain KDE4 version while
KF5 port and GSoC 2015 projects are in progress. Both are planned to be completed before end of this year.
As with 4.11.0, this new release comes with OSX PKG installers for Mountain Lion, Maverick, and Yosemite. Note that you must considerate digiKam under OSX as beta stage, not stable as under Linux. Some dysfunctions have been identified and fixed with this release.
PKG installer includes last
Exiv2 0.25,
LibRaw 0.16.2,
and LensFun 0.3.1
which do not exist yet in Macports repository. Exiv2 includes huge fixes about video support which can crash digiKam, and Libraw/Lensfun add new recent camera supports. In the future, we plan to include Hugin CLI tools too required at run-time by Panorama and ExpoBlending tools.
