DIGIKAM – Utilisation Basique
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Affinity Photo-Digikam Summer 2020
UCLA Research Workshop Series Summer 2020 Affinity Photo & digiKam Anthony Caldwell What is Affinity Photo? Wikipedia: Affinity Photo is a raster graphics editor Serif: If you could create your own photo editing software, it would work like this. What is digiKam? Wikipedia: digiKam is a free and open-source image organizer and tag editor digiKam: digiKam is an advanced open-source digital photo management application that provides a comprehensive set of tools for importing, managing, editing, and sharing photos and raw files. Color Color Space Wikipedia: A color space is a specific organization of colors. In combination with physical device profiling, it allows for reproducible representations of color, in both analog and digital representations. Color depth The human eye can distinguish around a million colors Color depth 1-bit color 2 colors 2-bit color 4 colors 3-bit color 8 colors 4-bit color 16 colors 5-bit color 32 colors 8-bit color 256 colors 12-bit color 4096 colors High color (15/16-bit) 32,768 colors or 65,536 colors True color (24-bit) 16,777,216 colors Deep color (30-bit) 1.073 billion 36-bit approximately 68.71 billion colors 48-bit approximately 281.5 trillion colors Note: different configurations of software and hardware can produce different color values for each bit depth listed Color Space Commission internationale de l’éclairage 1931 color space Image Source: https://dot-color.com Color Space Additive color mixing Image Source: https://en.wikipedia.org Color Space K Subtractive color mixing Image Source: https://en.wikipedia.org Color Space The Lab Color Space Image Source: https://docs.esko.com/ Color Space Color Space Comparison Image Source: https://www.photo.net Affinity Photo and digiKam… Questions? Anthony Caldwell UCLA Digital Research Consortium Scholarly Innovation Labs 11630L Charles E. -
Introduction to Linux
Presentation to U3A - Linux Introduction 8 June 2019 – Terry Schuster - [email protected] What is Linux? https://en.wikipedia.org/wiki/Linux https://www.iotforall.com/linux-operating-system-iot-devices/ In simple terms, Linux is an operating system which was developed to be a home-built version of UNIX, one of the first operating systems which could be run on different brands of mainframe computers with quite different types of hardware. Linux has developed to the extent that it is the leading operating system on servers and other big iron systems such as mainframe computers, and the only OS used on TOP500 supercomputers (since November 2017, having gradually eliminated all competitors). It is used by around 2.3 percent of desktop computers. The Chromebook, which runs the Linux kernel-based Chrome OS, dominates the US K–12 education market. In the mid 2000’s, Linux was quickly seen as a good building block for smartphones, as it provided an out- of-the-box modern, full-featured Operating System with very good device driver support, and that was considered both scalable for the new generation of devices and had the added benefit of being royalty free. It is now becoming very common in IoT devices, such as smart watches/refrigerators, home controllers, etc. etc. BTW, Tux is a penguin character and the official brand character of the Linux kernel. Originally created as an entry to a Linux logo competition, Tux is the most commonly used icon for Linux, although different Linux distributions depict Tux in various styles. The character is used in many other Linux programs and as a general symbol of Linux. -
KDE Plasma 5
Arvo Mägi KDE Plasma 5 Tallinn, 2017 1 Sissejuhatus KDE töökeskkonnale pani aluse saksa programmeerija Matthias Ettrich 14.10.1996. 2016. a oktoobris sai populaarne KDE seega 20. aastaseks. Hea ülevaate KDE ajaloost annab artikkel „19 Years of KDE History: Step by Step.” KDE 4.14 ilmumisega oli KDE saavutanud kasutusküpsuse, kuid edasine areng kippus takerduma – vaja oli põhimõttelisi uuendusi. Otsustati võtta kasutusele iseseisvatel moodulitel põhinev KDE 5 arhitektuur – Qt/Frameworks. Kõik KDE rakendusprogrammid, sh Plasma 5 töölaud, kasutavad ainult konkreetse rakenduse jaoks vajalikke mooduleid. Varem kasutati kõigi rakenduste jaoks ühist suurt teeki, mis raskendas muudatuste tegemist ja pidurdas arendustööd. Qt on C++ programmeerimiskeskkond. Pikaajalise toega Qt 5.9 LTS ilmus 31. mail 2017. KDE Frameworks on 70 moodulist koosnev komplekt, mis lihtsustab Qt keskkonnas KDE programmide koostamist. Frameworks veaparandused ja täiendused ilmuvad iga kuu. KDE Plasma 5 töölaud põhineb KDE Frameworksil (KF5). Töölaua veaparandused ilmuvad iga kuu, vajadusel mitu korda kuus, uued versioonid kord kvartalis. Plasma 5.8 LTS, mis on pikaajalise toega (18 kuud), ilmus 4.10.2016, veidi enne KDE 20. aastaseks saamist. Plasma 5.10 ilmus 30.05.2017. Järgmine pikaajalise toega Plasma 5.12 ilmub 2018. a jaanuaris. Plasma 5 töölaud on pälvinud palju kiitvaid hinnanguid ja sobib igapäevaseks tööks. Eeldab kaasaegset, mitme tuumaga protsessori ja piisava mäluga (vähemalt 4 GB) arvutit. SSD kettalt töötab välkkiirelt. Töölaud on keskkond rakendusprogrammide käivitamiseks ja kasutamiseks. KF5-le on üle viidud kõik KDE põhirakendused (failihaldur Dolphin, pildinäitaja Gwenview, konsool Konsole, teksti- redaktor Kate, ekraanitõmmise võtja Spectacle, videoredaktor Kdenlive, plaadikirjutaja K3b jt). Need on KDE Applications koosseisus, mille uued versioonid ilmuvad kolm korda aastas, veaparandused kord kuus. -
Why Be a KDE Project? Martin Klapetek David Edmundson
Why be a KDE Project? Martin Klapetek David Edmundson What is KDE? KDE is not a desktop, it's a community „Community of technologists, designers, writers and advocates who work to ensure freedom for all people through our software“ --The KDE Manifesto What is a KDE Project? Project needs more than just good code What will you get as a KDE Project? Git repository Git repository plus „scratch repos“ (your personal playground) Creating a scratch repo git push –all kde:scratch/username/reponame Git repository plus web interface (using GitPHP) Git repository plus migration from Gitorious.org Bugzilla (the slightly prettier version) Review Board Integration of git with Bugzilla and Review Board Integration of git with Bugzilla and Review Board Using server-side commit hooks ● BUG: 24578 ● CCBUG: 29456 ● REVIEW: 100345 ● CCMAIL: [email protected] Communication tools Mailing lists Wiki pages Forums Single sign-on to all services Official IRC channels #kde-xxxxx (on Freenode) IRC cloak me@kde/developer/mklapetek [email protected] email address Support from sysadmin team Community support Development support Translations (71 translation teams) Testing support (Active Jenkins and EBN servers, plus Quality Team) Project continuation (when you stop developing it) KDE e.V. support Financial and organizational help Trademark security Project's licence defense via FLA Promo support Stories in official KDE News site (Got the Dot?) Your blog aggregated at Planet KDE Promo through social channels Web hosting under kde.org domain Association with one of the best -
KDE Galaxy 4.13
KDE Galaxy 4.13 - Devaja Shah About Me ●3rd Year Alienatic Student at DA- !"# Gandhinagar ●Dot-editor %or KDE &romo "ea' ●Member of KDE e.(. ●&a))ion for Technology# Literature ●+un the Google Developer Group in !olle$e ●-rganizin$ Tea' of KDE Meetup# con%./de.in 14 -/ay, sooooo....... ●Ho1 many of you are %an) of Science Fiction3 ●Astronomy3 ● 0o1 is it Related to KDE3 ●That i) precisely 1hat the talk is about. ●Analogy to $et you to kno1 everythin$ that you should about ● “Galaxy KDE 4.13” 4ait, isn't it 4.14? ●KDE5) late)t ver)ion S! 4.14 6 7ove'ber 8914 ●KDE Soft1are !o',ilation ::.xx ●Significance o% +elea)e) ●- -r$ani.ed# )y)te'atic co',ilation o% %eature) < develo,'ent) ●- 2ive )erie) of relea)e) till date. ●7o Synchronized +elea)e) Any lon$er: ● - KDE 2ra'e1ork) > ?'onthly@ ● - KDE &la)'a > ?3 'onth)@ ● - KDE Ap,lication) ?date ba)ed@ ●Au)t *i/e Ap, (er)ion) But, 1hat am I to do o% the Galaxy 7umber? ●4ork in a "eam ●4ork acros) a Deadline ●-%;ce Space Si'ulation ●Added 'petus %or Deliverin$ your 2eature) ●You 1ork a) a ,art of the C!oreD Developer "ea' ● nstils Discipline ●Better +e),onse# Better 2eedbac/ ●Better Deliverance ●Synchronized 1ork with other C)ea)onedD developer) Enough of the bore....... ●Ho1 do $et started3 ● - Hope you didn't )nooze yesterday ● +!# Subscribe to Mailing Lists ●Mentoring Progra') ●GsoC# Season of KDE, O2W Progra') ●Bootstra,pin$ Training Session) Strap yourself onto the Rocket ●And Blast O%%......... ● ● ● Entered A 4ormhole and Ea,ped into the KDE Galaxy ●No1 what? ●Pick a Planet to nhabit ●But.... -
Translate's Localization Guide
Translate’s Localization Guide Release 0.9.0 Translate Jun 26, 2020 Contents 1 Localisation Guide 1 2 Glossary 191 3 Language Information 195 i ii CHAPTER 1 Localisation Guide The general aim of this document is not to replace other well written works but to draw them together. So for instance the section on projects contains information that should help you get started and point you to the documents that are often hard to find. The section of translation should provide a general enough overview of common mistakes and pitfalls. We have found the localisation community very fragmented and hope that through this document we can bring people together and unify information that is out there but in many many different places. The one section that we feel is unique is the guide to developers – they make assumptions about localisation without fully understanding the implications, we complain but honestly there is not one place that can help give a developer and overview of what is needed from them, we hope that the developer section goes a long way to solving that issue. 1.1 Purpose The purpose of this document is to provide one reference for localisers. You will find lots of information on localising and packaging on the web but not a single resource that can guide you. Most of the information is also domain specific ie it addresses KDE, Mozilla, etc. We hope that this is more general. This document also goes beyond the technical aspects of localisation which seems to be the domain of other lo- calisation documents. -
FOSS, 24Th April 2014 Digital Image Management 1. Introduction
FOSS, 24th April 2014 Digital Image Management Roger Hurley 1. Introduction I currently use three open source photography applications: digiKam for organising my image files; GIMP as a pixel editor; and RawTherapee as a RAW processor. There is a degree of overlap in functionality between these packages but, since this presentation is about organising digital photographs, this document concentrates on the image management capabilities of digiKam. In the old days there were two approaches: The Shoe Box - Put all the photographs into an old shoe box and look at them once a year; The Librarian - Carefully write details on the back of each photograph and file them away in albums; look at them occasionally. Having annotated the photos, they could be sorted by the date they were taken and/or their subject matter, depending on how much work you wanted to do. With the advent of digital photography, we gained the ability to store our images in a logical directory/sub-directory structure, creating virtual albums. These could be organised by date, event, subject matter, etc., or combinations of these, as indicated below: This is all very well, but it doesn©t give us much more than the old Librarian approach. However, digital cameras also save information about the images; this is known as metadata and most of it is saved as an exif file within the image file (.jpg, .tiff, .raw, etc.). An ex if file can contain a great deal of information about the image: make & model of camera; date & time when the image was created; camera settings - aperture, shutter speed, sensitivity (iso), focal length, white balance; flash settings, image resolution, etc.; file size and format; and so on. -
Kubuntu Desktop Guide
Kubuntu Desktop Guide Ubuntu Documentation Project <[email protected]> Kubuntu Desktop Guide by Ubuntu Documentation Project <[email protected]> Copyright © 2004, 2005, 2006 Canonical Ltd. and members of the Ubuntu Documentation Project Abstract The Kubuntu Desktop Guide aims to explain to the reader how to configure and use the Kubuntu desktop. Credits and License The following Ubuntu Documentation Team authors maintain this document: • Venkat Raghavan The following people have also have contributed to this document: • Brian Burger • Naaman Campbell • Milo Casagrande • Matthew East • Korky Kathman • Francois LeBlanc • Ken Minardo • Robert Stoffers The Kubuntu Desktop Guide is based on the original work of: • Chua Wen Kiat • Tomas Zijdemans • Abdullah Ramazanoglu • Christoph Haas • Alexander Poslavsky • Enrico Zini • Johnathon Hornbeck • Nick Loeve • Kevin Muligan • Niel Tallim • Matt Galvin • Sean Wheller This document is made available under a dual license strategy that includes the GNU Free Documentation License (GFDL) and the Creative Commons ShareAlike 2.0 License (CC-BY-SA). You are free to modify, extend, and improve the Ubuntu documentation source code under the terms of these licenses. All derivative works must be released under either or both of these licenses. This documentation is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE AS DESCRIBED IN THE DISCLAIMER. Copies of these licenses are available in the appendices section of this book. Online versions can be found at the following URLs: • GNU Free Documentation License [http://www.gnu.org/copyleft/fdl.html] • Attribution-ShareAlike 2.0 [http://creativecommons.org/licenses/by-sa/2.0/] Disclaimer Every effort has been made to ensure that the information compiled in this publication is accurate and correct. -
The Showfoto Handbook the Showfoto Handbook
The Showfoto Handbook The Showfoto Handbook 2 Contents 1 Introduction 13 1.1 Background . 13 1.1.1 About Showfoto . 13 1.1.2 Reporting Bugs . 13 1.1.3 Support . 13 1.1.4 Getting Involved . 13 1.2 Supported Image Formats . 14 1.2.1 Introduction . 14 1.2.2 Still Image Compression . 14 1.2.3 JPEG . 14 1.2.4 TIFF . 15 1.2.5 PNG . 15 1.2.6 PGF . 15 1.2.7 RAW . 15 2 The Showfoto sidebar 17 2.1 The Showfoto Right Sidebar . 17 2.1.1 Introduction to the Right Sidebar . 17 2.1.2 Properties . 17 2.1.3 Metadata . 18 2.1.3.1 EXIF Tags . 19 2.1.3.1.1 What is EXIF . 19 2.1.3.1.2 How to Use EXIF Viewer . 19 2.1.3.2 Makernote Tags . 20 2.1.3.2.1 What is Makernote . 20 2.1.3.2.2 How to Use Makernote Viewer . 20 2.1.3.3 IPTC Tags . 20 2.1.3.3.1 What is IPTC . 20 2.1.3.3.2 How to Use IPTC Viewer . 21 2.1.3.4 XMP Tags . 21 2.1.3.4.1 What is XMP . 21 2.1.3.4.2 How to Use XMP Viewer . 21 2.1.4 Colors . 21 The Showfoto Handbook 2.1.4.1 Histogram Viewer . 21 2.1.4.2 How To Use an Histogram . 23 2.1.5 Maps . 25 2.1.6 Captions . 26 2.1.6.1 Introduction . -
JPEG Renaming and Loss-Free Processing EXIF TRICKS
COVER STORY Image Processing with EXIF JPEG renaming and loss-free processing EXIF TRICKS You can rename and modify JPEG files without touching the graphics by manipulating settings in the file header. www.sxc.hu BY MARTIN STEIGERWALD he Exchange Image File (EXIF) data is included with image file formats tings such as the date and time of cre- format is a standard developed such as JPEG and TIFF, as well as with ation, the exposure time, the aperture Tby the Japan Electronic Industry audio formats such as RIFF. Depending setting, the exposure program, the size, Development Association (JEIDA) that on the model and make of your camera, the resolution, and the orientation of the lets digital cameras store meta-informa- the meta-information stored in the image. tion in the header of an image file. EXIF header of the image file can include set- Linux provides several tools for ma- nipulating EXIF data directly. Directly Table 1: EXIF Applications manipulating the metadata associated with an image file saves time, promotes Application EXIF Support Loss-free Rotation and Mirroring automation, and, in some cases, pre- Digikam 0.7.2, Photo management Load, display, but not save In the drop-down for the image, also automatically based on EXIF vents the data loss that would occur information with graphic manipulation. This article Eye of Gnome 2.8.2, Image Viewer Load, display, and save No describes some techniques for using Feh 1.3.4, Image viewer No Via File | Edit in Place. EXIF infor- EXIF metadata to rename and manipu- mation is lost late JPEG images. -
Showing JPG Comments in an Image Browser John C
Showing JPG comments in an image browser John C. Nash 2017-06-04 The Conclusions (up front!) The JPEG image standard allows several ways to save caption information INSIDE an individual JPG file. This is important, as captions stored separately can be “lost” if filenames are changed. However, which choice of mechanism to use leads to confusion. Here I recommend the “Comment” field be used. This is available via rdjpgcom and wrjpgcom tools in Linux. On Windows, or under WINE in Linux, Irfanview is quite capable (Image/Info/Comment), but mapivi which is cross platform is sometimes better for adding comments. For Linux I found feh allowed a simple script to display images with comments for a quick verification of the caption. Irfanview offers a full-screen option that is similar. Having got into “production” mode, I discovered that it was, or at least feels, more efficient to work mostly in Irfanview. The background to this is outlined in the section “Production workflow”. Motivations My wife and I have a lot of photos. We don’t look at them very often, but they do represent memories and serve to remind us of events in our past. There are also some that should be passed to other family and friends. The many albums take up space, and are not terribly well stored. For this reason we have been scanning them. Images on their own are not particularly useful. Therefore we have been adding captions, using the “Comment” capability of JPG files. This is in the IPTC tags of the JPEG standard (https://en.wikipedia.org/wiki/JPEG). -
KDE E.V. Quarterly Report
KDE COMMUNITY REPORT 3RD QUARTER, 2010 | ISSUE 15 WELCOME MESSAGE The third quarter of 2010 started these students attended Akademy. platform. Nokia delivered a new off with Akademy in bright and We see ongoing growth in the Qt 4.7 with Qt Quick support, sunny Tampere, Finland. For nine number of contributors to the KDE Amarok released version 2.3.2 days, KDE contributors from community. with improved support for around the world worked together upcoming events and KDE 4.5, at the University of Tampere and You too can join the game! See the comprising the KDE platform, the Demola labs to share, mingle, report by Jenny Yeung in this Plasma desktop and KDE present, discuss, hack, and have a quarterly, or come to the next applications, did two releases. good time as a community. You Akademy which will be part of the will find a report on Akademy by Berlin Desktop Summit. In the We are really happy that there is Jos Poortvliet later in this KDE summer of 2011, Akademy and so much technical momentum quarterly. GUADEC will once again be part of powered by the KDE community, a Desktop Summit at Humboldt and there is more to come. Stay Another big event in the summer University in Berlin, Germany. tuned. for KDE was the Google Summer of Code. KDE mentored a record This quarter saw the release of The KDE e.V. Board number this year, with more than several new versions of important 45 students successfully technologies for KDE and completing their projects. Many of applications based on the KDE CONTENTS Open Software, Open Design, Open Culture 2 Open Source is more than just software.