Sébastien Roy & Louis Bouchard Département d’Informatique et de recherche opérationnelle Université de Montréal Play (26min) Download: FLV | MOV | OGG | MP3

We present a new compiz plugin to use multiple projectors, in order to obtain a very high resolution desktop (with two HD projectors, the desktop is typically 3800×1000). The most important feature is that projectors alignment is done manually (very quickly) and the edge blending is computed automatically. The result is a perfectly aligned, anti-aliased and edge-blended desktop.

Jon A. Cruz   Play (43min) Download: FLV | MOV | OGG | MP3

]]> http://river-valley.tv/print-the-final-frontier/feed/ 0 http://river-valley.tv/introducing-adaptablegimp/#utm_source=rss&utm_medium=rss&utm_campaign=introducing-adaptablegimp http://river-valley.tv/introducing-adaptablegimp/#comments Tue, 05 Jul 2011 18:03:10 +0000 Admin http://river-valley.tv/introducing-adaptablegimp/

Michael Terry, Ben Lafreniere & Fil Krynicki   Play (31min) Download: FLV | MOV | OGG | MP3

In this talk, we will present AdaptableGIMP, a new version of GIMP that introduces the notion of crowdsourced interface customizations to applications. Using AdaptableGIMP, users can customize the software for specific tasks. These customizations are instantly made available to all other users. Additionally, each customization has a corresponding wiki page, allowing tutorials to be created for each customization.

We will describe the rationale behind the approach, demonstrate the new interface and its features, and discuss implications for this design.

Nathan Willis http://www.glyphography.com/fonts Play (13min) Download: FLV | MOV | OGG | MP3

This talk is an account of my project over the last few months to design an open source revival of the 1908 News Gothic font, including an outsider/newcomer’s perspective on the free font design toolchain, but with feedback on related tools as well, particularly scanning and vectorizing samples of the original typeface, and extending the original, Latin-only designs into additional orthographies. Reviving public domain works is not limited to fonts, of course, so there are potential lessons for other areas of design as well.

Ana Carvalho, ginger coons, Ricardo Lafuente   Play (29min) Download: FLV | MOV | OGG | MP3

]]> http://river-valley.tv/libre-graphics-magazine-a-year-of-fantastic/feed/ 0 http://river-valley.tv/selected-phython-scripts-for-scribus/#utm_source=rss&utm_medium=rss&utm_campaign=selected-phython-scripts-for-scribus http://river-valley.tv/selected-phython-scripts-for-scribus/#comments Fri, 17 Jun 2011 07:21:53 +0000 Admin http://river-valley.tv/selected-phython-scripts-for-scribus/

Gregory Pittman   Play (16min) Download: FLV | MOV | OGG | MP3

]]> http://river-valley.tv/selected-phython-scripts-for-scribus/feed/ 0 http://river-valley.tv/generative-typesetting-with-context/#utm_source=rss&utm_medium=rss&utm_campaign=generative-typesetting-with-context http://river-valley.tv/generative-typesetting-with-context/#comments Wed, 15 Jun 2011 11:40:28 +0000 Admin http://river-valley.tv/?p=9689

John Haltiwanger   Play (22min) Download: FLV | MOV | OGG | MP3

]]> http://river-valley.tv/generative-typesetting-with-context/feed/ 0 http://river-valley.tv/how-to-make-svg-speak-spot-color-language/#utm_source=rss&utm_medium=rss&utm_campaign=how-to-make-svg-speak-spot-color-language http://river-valley.tv/how-to-make-svg-speak-spot-color-language/#comments Wed, 15 Jun 2011 11:34:13 +0000 Admin http://river-valley.tv/how-to-make-svg-speak-spot-color-language/

Louis Desjardins   Play (9min) Download: FLV | MOV | OGG | MP3

]]> http://river-valley.tv/how-to-make-svg-speak-spot-color-language/feed/ 0 http://river-valley.tv/laying-out-democracy/#utm_source=rss&utm_medium=rss&utm_campaign=laying-out-democracy http://river-valley.tv/laying-out-democracy/#comments Wed, 15 Jun 2011 11:27:53 +0000 Admin http://river-valley.tv/laying-out-democracy/

Ana Carvalho, Ricardo Lafuente   Play (20min) Download: FLV | MOV | OGG | MP3

]]> http://river-valley.tv/laying-out-democracy/feed/ 0 http://river-valley.tv/deviantart-creating-community-around-creativity/#utm_source=rss&utm_medium=rss&utm_campaign=deviantart-creating-community-around-creativity http://river-valley.tv/deviantart-creating-community-around-creativity/#comments Wed, 15 Jun 2011 11:21:05 +0000 Admin http://river-valley.tv/deviantart-creating-community-around-creativity/

Deviantart, Michael Halpert http://deviantart.com Play (31min) Download: FLV | MOV | OGG | MP3

In the 10 years since it’s inception, deviantART has become the home for over 17 Million Artists with an audience of over 45 million people all around the globe. The site provides an exhibition environment, community tools and resources for artists at all skill levels, in all mediums. As a supporter of the open-source software movement, deviantART hosts millions of creative works, tutorials, assets, brush packs, skins and resources for all of the major projects. The Groups platform also creates environments for people to collaborate around software projects to share and curate their favorite artwork and resources. Gilles and Mike from deviantART are here today to discuss new opportunities for interfacing directly with this massive online platform.

Mike Halpert works with the business development and product groups at deviantART. His work includes numerous popular products such as Portfolio, the dA Mobile site and numerous e-commerce offerings. Prior to deviantART, Mike worked in creative development at Lawrence Bender Productions and the prestigious William Morris Agency. Halpert is a graduate of the Tisch School of the Arts at New York University.

Gilles Dubuc is one of the team leads of the Devious Technology department at deviantART. Since joining deviantART, he has worked on core products such as the groups platform and notes, has rewritten large components of the website and pioneered innovative optimization techniques. Prior to deviantART, Gilles worked for several companies including SMS Central Pty Ltd and Sun Microsystems. He also founded two startups. He graduated from Napier University in Edinburgh, Scotland.

John Cupitt1, Nicolas Robidoux2 1 Imperial College, London, 2 Université Laurentienne, Sudbury ON Play (10min) Download: FLV | MOV | OGG | MP3

In this lightning talk, Nicolas Robidoux will pretend to implement a cross-platform GUI for an ImageMagick command in 5 minutes using nip2, and will proceed to pretending to use the command on a bunch of images all at once.

Explanation: Although Nicolas is prepared to do a live programming demo, this would not work well with river-valley.tv, hence the pretending. In addition, slides allow appropriate zooming on the action, which will make things easier to see, and allow for the insertion of useful comments.

After completing his PhD in Theoretical Computer Science at the University of Kent, John Cupitt spent 15 years in the Scientific Department at the National Gallery, London, as the Gallery’s colour and imaging specialist. He was lead software developer on projects that built multispectral, visible, infrared, x-ray and 3D scanners for art objects. He designed and programmed the Gallery’s colorimetric print-on-demand service.

In 2004 he moved to Imperial College, London, to work as a bioinformatics modeller for the analysis of FDG-PET images of COPD and asthma patients. He has published papers on camera calibration, image processing I/O systems, user-interface design, the measurement of colour change in paintings, infrared imaging of paintings and on the analysis of infrared reflectograms. He is the lead developer of VIPS, a popular open-source image processing system.

Nicolas Robidoux is the VIPS/NIP2 Powerpoint Karaoke Representative for North America; He likes to end sentences with semicolons;

Pierre Marchand http://oep-h.com Play (31min) Download: FLV | MOV | OGG | MP3

A year at programming for graphic|product design with free softwares and freedom in mind.

Jon Nordby http://www.jonnor.com Play (28min) Download: FLV | MOV | OGG | MP3

MyPaint is a fast and easy open-source graphics application for digital painters that lets you focus on the art instead of the program. Started in 2004 by Martin Renold to be a painting program he enjoyed to use and develop, MyPaint has grown to become a popular Libre Graphics tool.

This talk will guide you through the past, present and future of MyPaint:

Past A quick look at the history of MyPaint; the initial idea/motivation, and some of the significant events.

PresentAn overview of the current status of MyPaint; what has happened in the last months and what is happening right now. A central part here will be about the MyPaint 1.0 release.

Future Discussion about the future of MyPaint; some of the concrete plans that exist, and more abstract/undecided ideas and visions. Last but not least, how you can help the future of MyPaint will be covered.

The talk will be introductionary in nature, and not especially technical. Curious digital artists, existing end-users, potential and existing contributors should all find this talk interesting.

Hugh McGuire & Christine Prefontaine http://pressbooks.com/ Play (10min) Download: FLV | MOV | OGG | MP3

PressBooks is an open-source book publishing platform built on WordPress that makes it easy for you and your team to write, edit, and generate clean, well-formatted books in multiple outputs: epub, print-ready PDF, layout-ready XML, and HTML. Hugh will provide an overview of the PressBooks project and Christine will demo how the University of Washington’s Technology & Social Change group is using the platform to publish academic texts.

Susan Spencer Conklin http://www.tmtp-project.org Play (53min) Download: FLV | MOV | OGG | MP3

* I. Presentation of project development during the previous 12 months.
o I1. Description of software development from manual technique to procedural code to object oriented code.
o I2. Discussion of how the pattern was separated out, leaving a generic engine. This coding approach allows the designer to retain pattern rights while the engine is open source software.
* II. Illustration of how a beginner can develop an idea and take it forward.
* III. Presentation of current product.

Stéphanie Vidal http://twitter.com/minniefractale Play (26min) Download: FLV | MOV | OGG | MP3

The main question with data today, is not so much their existence but what is processed, their continuous use and applications,”” said Jérémie Zimmerman from La Quadrature du Net, a French organisation that aims to defend the rights and liberty of Internet users. Today, data is everywhere around us. They were around yesterday but we did not have the means to work with and visualize them on massive scale before. Thanks to the Internet and the value of sharing and transparency engendered by its long-time users, we can nowadays access and find tools to process massive amounts of data and reveal information that used to stay hidden in lists of numbers.

On one side, companies, governments and media put more and more datasets at our disposal. On the other hand there is more and more specialized and specified softwares that are provided to treat and visualize this profusion of information, and many of these tools are indeed, open source.

To play on words, information sources could be considered as “”open sources””. Like never before, anyone may gain access to a significant amount of raw information via an Internet connection. Of course, not all of the datasets are available and sometimes we would prefer this raw information to be delivered at in better formats, but so much is ready to be cooked.

In terms of expertise, datasets and softwares are no longer just the turf of scientists and journalists, artists and amateurs are exploring them. The increasing number of data-visualizations produced by people or making platforms that help people to create their own visualizations is an emerging tred.

This presentation, focuses on data visualization. It puts in perspective the notion of information and its possible changes in this “”open sources”” world. The presentation of several examples taken in from media and some artists portfolio is shown, as well as paths for audience to get involved.

Etymologically, information is what is put into form. Does the fact that we can all potentially process databases, extract meanings out of the information and visually represent data thanks to open source tools, modify the shape that information used to have and the how we used to interact with it?

Pete Ippel http://thephysicalword.hypermodern.net Play (37min) Download: FLV | MOV | OGG | MP3

LGM 2010 was a new experience for me, and has greatly influenced my teaching, my art, and my perception. While I was in London returning from Brussels, I received a call from the San Francisco Art Institute to teach a freshman foundation course titled “”Making and Meaning””. It was the first time I had the opportunity to create my own syllabus for undergraduates, so I chose to teach about free culture, and how create work and consider open principles when executing projects. http://hypermodern.net/2010/08/24/making-history-free-and-open-culture/

Three weeks away from the end of the semester I was struck by a nearly life-ending infection. A fellow free culture advocate came to my aid, teaching in my place, and helped to produce and inspire a project called “”The Physical Word.””

In this presentation, I will share my story of how the principles of LGM serve as inspiration to recovery and regrowth.

http://thephysicalword.hypermodern.net is the project that was created utilizing concepts from LGM.

Jean-François Fortin Tam http://jeff.ecchi.ca Play (29min) Download: FLV | MOV | OGG | MP3

What has happened since I first presented Pitivi at LGM in 2009? This talk will address the following topics:

* Quick recap of the current state of open source video editors in Linux
* The challenges of open source video editing
* New features and improvements in Pitivi since 2009
* Why Pitivi shall prevail, and how to get involved
* Near Future plans for Pitivi
* ???
* PROFIT!!!

Elisa de Castro Guerra http://en.flossmanuals.net Play (23min) Download: FLV | MOV | OGG | MP3

Presentation of Floss Manuals the fondation. Presentation of Floss Manuals francophone the association. Our plateforme : Floss Manuals & Booki (and bookimobile) Our goals and our need.

This project is multinlingual, and we hope in Montréal touch people to translate french manual into english. Furthemore we want put out the importance of the documentation in FLOSS Graphics.”,”Elisa de Castro Guerra is a french graphic designer. She is also author about Inkscape book in french and docwriter on the french team of Inkscape. Cédric Gémy is a french graphic designer, teacher, art director, author (etc etc) about many floss graphic. He is also docwriter in some floss graphics. Cédric and Elisa have founded the new Association Floss Manuals Francophone, the french localisation of the fondation Floss Manuals.

Floss Manuals is a fondation creat by Adam Hyde. Adam Hyde was a digital artist come from New Zealand. Now he manage Floss Manuals and Booki for creat new free and good manual about free culture and free tools.

“Jon”,”Phillips”,”http://fabricatorz.com”,”Fabricating a Libre Graphics Future”,”In art school we used to say there are people who work on themselves and those who make art. While this reductive analysis can’t possibly explain the complete path for promoting and growing development and usage of libre graphics software and ideologies, this presentation examines the two paths of conservatism and progressivism through several examples. From desktop vs web development with Inkscape vs Aiki Framework, software vs hardware with flickernoise and the MilkyMist1, and fixed-income vs dynamic business growth, both defensive and offensive strategies for the future of Libre Graphics is shown.

Of course, the bias in this presentation is to grow the creative free software applications and libre graphics projects globally in the face of mass competition from locked-down creative web applications, the rapidly decreasing cost of consumer electronics for producing and consuming digital media, and possibly the largest threat to ourselves, the lactic acid of infinitely supporting legacy architectures of hardware, software and mental processes.

Christopher Adams http://chris.raysend.com Play (32min) Download: FLV | MOV | OGG | MP3

The call for quality free and open fonts that are suitable to the needs of the most demanding web and print designers has finally been answered. At the Libre Graphics Meeting 2010 in Brussels I addressed many of the classic typeface designs available under a free license. Scroll down one year and we are witness to a multitude of new designs as well as the technology to deliver them reliably on the Web. All libre graphics and software professionals now have the tools at hand to apply excellence in type design to their web-based projects. In this talk I will offer a practical guidebook for deploying free and open fonts on the Web and in print alike.

Brad Phillips http://fabricatorz.com Play (27min) Download: FLV | MOV | OGG | MP3

While Inkscape remains a leading tool in the Libre Graphics Community, lack of exposure in comparison to other proprietary tools presents a key issue in it’s progression into mainstream tech consciousness. In my presentation, I will go through the process of creating a custom vector avatar in Inkscape. This process will provide an overview of the tools available to graphic artists and how to use them in a way that produces professional results.

To wrap up the presentation, I’ll upload the finished avatar to The Open Clip Art Library, the primary destination for freely usable created content. I’ll also expose the ways in which attendees can become a part of the Community and help it grow.

Timothée Giet http://animtim.wehost.be/blog Play (19min) Download: FLV | MOV | OGG | MP3

I want to make a workshop centered around drawing comics with Krita, including live demo and feature talking.

For the last 6 month I’ve been testing Krita to evaluate it seriously as a comic-book artist tool, giving feedback to the development team. To achieve this I’ve worked on a little experimental comics called “”Wasted Mutants”” (you can read it on my blog).

So I want to make some live demonstration, highlighting the feature I’ve found useful for this task, some new upcoming/still in test exciting features, and maybe what is still missing or could be improved in the future to get it perfect.

Lukáš Tvrdý http://lukast.mediablog.sk/log Play (26min) Download: FLV | MOV | OGG | MP3

Krita is a KDE program for sketching and painting, offering an end–to–end solution for creating digital painting files from scratch by masters. Fields of painting that Krita explicitly supports are concept art, creation of comics and textures for rendering.Krita supports creative working by getting out of the way and with snappy response.

Krita 2.3 is the first Krita release advertised as user-ready. We work hard, in close connection to artists, to make Krita the best painting application. This talk will be about the road to Krita usable for professional artists. I will guide you fastly through new nifty features in Krita like color choosers, brushes, new tools, the canvas and more. I will emphasis what the Krita artists like the most about Krita and also what do we plan for the future releases. I will share some “”behind the scene”” stories from the development, how we work, how we co-operate with other libre graphics applications and what we have achieved so far.

Femke Snelting http://ospublish.constantvzw.org/lab Play (13min) Download: FLV | MOV | OGG | MP3

The Libre Graphics Research Unit will be a traveling lab where new ideas for creative tools can be developed. Its diverse activities range from the practical to the theoretical via writing, research meetings, experimental prototyping, a conference and a workshop. The Research Unit is an initiative of four European media-labs actively engaged in Free/Libre and Open Source Software and Free Culture. This cross-disciplinary project involves artists, designers and programmers and we would like to develop the work in dialogue with the Libre Graphics community. What future practices can we imagine, and which tools can make them happen?

The Libre Graphics Research Unit is a collaboration involving Medialab Prado (Madrid, ES), WORM (Rotterdam, NL), Piksel (Bergen, NO) and Constant (Brussels, BE). It will run for two years as of June 2011 with the support of the EU Culture Programme 2007-2013.

Christopher Allan Webber http://dustycloud.org Play (27min) Download: FLV | MOV | OGG | MP3

Blender was used in the film Patent Absurdity to produce several animations. I will describe how those animations were made and talk about how Blender could be used for further free software / culture advocacy animation work.

Richard Hughes http://www.hughsie.com Play (33min) Download: FLV | MOV | OGG | MP3

The colord project intends to make color management just work. In this presentation I will quickly introduce why color management is required, and also the problems introducing an integrated color management workflow. We will compare and contrast the frameworks commonly used in OSX and Windows 7. By discussing the integration points, we will be talking to application developers and platform maintainers in order to shape the future development of colord and the front-ends such as GNOME Color Manager. We will also spend some time exploring the intricacies of an open source color management framework best suitable for display, scanning and printing, and how we can start to provide this functionality. I’ll cover how key projects have already been modified to work with colord, and what application authors still have to do.

There will be time left for questions and discussion. It is expected the audience will be moderately technically skilled, and possess a basic understanding of color management.

Kai-Uwe Behrmann http://www.oyranos.org Play (23min) Download: FLV | MOV | OGG | MP3

Moving the drivers colour slider and forget is a worst case scenario for ICC colour management. The talk gives some ideas on, how to preserve the relation of the original colour device calibration with the resulting ICC colour profile. Possible strategies will be discussed using PPD files and the ICC meta tag. Basic terms will be explained.

Eric Schrijver http://ericschrijver.nl/ Play (16min) Download: FLV | MOV | OGG | MP3

As Douglas Rushkoff explains in Program or be Programmed, programming is a new literacy that ought to be mastered if you care about taking a part in directing our culture.

To those who already program, it can sometimes seem odd that the number of people learning this vital skill is so small: after all, basic programming is not very hard. The catch is, programming as a skill is deeply embedded in a larger ecosystem, referred to as programming culture. To learn how to program is not just to learn how loops and variables work, but also how to navigate this culture.

Like any culture there are biases in programming culture, and these can make learning how to program more difficult than strictly necessary. As a designer, there are certain biases that are especially remarkable. One of them is the way how text-based interfaces are in favour:

Whereas everyone else is traipsing around picking dazzling fonts to describe their world, your nerd has carefully selected a monospace typeface, which he avidly uses to manipulate the world deftly via a command line interface while the rest fumble around with a mouse. ( http://www.randsinrepose.com/archives/2007/11/11/the_nerd_handbook.html )

This talk will highlight a number of ways in which the text-oriented view of traditional programming clashes with the visually oriented way of thinking of designers. It shows how text based thinking can enhance a design process, but also goes into how a bias towards text-based approaches can stifle the development process of software, and make programming less accesible to new audiences. It shares lessons learned from the process of learning to code as a designer, and subsequently teaching code to design students. It concludes with how developments in Libre Graphics software can mitigate between these two paradigms.”

Andreas Vox http://www.scribus.net Play (24min) Download: FLV | MOV | OGG | MP3

Modern societies are based on technology. But this technology isn’t free: it’s protected by trade secrets and patents. It’s also mainly used for generating profits and not for helping people. FLOSS is nice, but it only covers software. Wikipedia is nice, but information is not enough to use a technology. CC-licensed art is nice, but it won’t fill your belly. Today, despite all our technology, a large part of mankind does not have sufficient access to clean water, food, energy or shelter.

This talk sketches the idea of a public database for sustainable technological processes and sufficient information on how to implement them. The database would be accompanied by a web application that allows discussing, evaluating, documenting and staging of process descriptions.

The discussion will cover the vision, feasibility and promotion of this idea.”,”Andreas Vox is one of the core team Scribus developer. He’s the text engine expert among other things.

pippin / Øyvind Kolås   Play (14min) Download: FLV | MOV | OGG | MP3

]]> http://river-valley.tv/pinpoint-a-tool-for-making-hackers-do-excellent-presentations/feed/ 0 http://river-valley.tv/in-situ-animation-with-toonloop/#utm_source=rss&utm_medium=rss&utm_campaign=in-situ-animation-with-toonloop http://river-valley.tv/in-situ-animation-with-toonloop/#comments Thu, 02 Jun 2011 16:26:53 +0000 Admin http://river-valley.tv/in-situ-animation-with-toonloop/

Alexandre Quessy http://toonloop.com/ Play (7min) Download: FLV | MOV | OGG | MP3

In this presentation, Alexandre Quessy will present and demonstrate Toonloop, the live animation software. Participants will be able to try it with a camera and some lighting. He will explain why he created Toonloop, and how many people experimented with it for making movies, performances, installations as well as for teaching frame by frame animation. Stop motion can also be used for creating quick mockups of user interfaces.

Toonloop is a free software frame by frame animation application. Creating an animation with Toonloop is very easy, since the current clip is constantly played back while being edited. This constant playback catches the attention of anyone looking at the computer display. Its user interface is quite streamlined, since most of the controls are currently keyboard-based.

Nicolas Robidoux, John Cupitt, Chantal Racette, Anthony Thyssen, Adam Turcotte, Frederick (Fred) Weinhaus https://www.ohloh.net/accounts/NicolasRobidoux Play (32min) Download: FLV | MOV | OGG | MP3

Regular talk in the form of a series of linked lightning talks. We would of course like some time for questions. Could eat up a one hour block with 5 min Q&A after each 5 min talk? (This would mesh better with RiverTV than having all the questions at the end? We’d love feedback and discussion: Much of this is work in progress.

* Jinc-windowed Jinc clamped Elliptical Weighted Averaging: A superior alternative to Lanczos Sinc-windowed Sinc filtering

Several improvements to Heckbert’s EWA method have produced a filter with the desirable features of the classical Lanczos filters. The method, suitable for demand-driven systems (GEGL, VIPS…) will be described, its strenghts and weaknesses stated, and comparative results involving image enlargement and reduction, computed with the ImageMagick implementation, will be shown. (Presenter: NR. Authors: NR, ATh, FW and CR.)

* High quality automated JPEG thumbnail and reduced image production with adaptive prefiltering

JPEG is still the format of choice for the electronic transmission of small and full size versions of natural images. At low quality levels, however, its block and ringing artifacts reduce its edge over JPEG2000 and dithered PNG8. These artifacts can be reduced by increasing the strength the lowpass filter used to reduce the size of the image. ImageMagick examples, illustrating these and other ways of maximizing bang for the buck, will be discussed. (Presenter: NR. Authors: NR and FW.)

* Nohalo subdivision with Locally Bounded Bicubic finish: A halo free upsampling method

LBB-Nohalo is a novel halo-free resampling method which can be roughtly described as an adaptive blend of Hermite and Catmull-Rom interpolation. The method, suitable for demand-driven systems, will be described, its strenghts and weaknesses stated, and comparative results involving image enlargement, computed with the VIPS implementation, will be shown. (Presenter: NR. Authors: NR, CR, JC and ATu.)

* Jacobian adaptivity: How to smoothly blend a resampling method tuned for upsampling with one tuned for downsampling

Suppose that you have a favorite sampler tuned for upsampling, and a favorite sampler tuned for downsampling. How do you “”blend”” them so that the “”right”” one is used, yet without “”switching”” artifacts when warping goes from up- to downsampling within an image (as can happen when performing a perspective transformation) or in different directions at a single point (like when resizing by making the width smaller but the hight larger)? Answer: Blend depending to the singular values of the Jacobian of the transformation at the point under consideration. Details will be provided, and GEGL results hopefully shown (still coding! the machinery is built into GEGL but no high quality sampler currently uses it). (Presenter: ATu. Authors: NR, ATu, CR and others.)

* The hacker’s guide to the computation of common resampling filters and related geometrical quantities

Several simple but little known formulaic simplifications for common filters (bilinear, Catmull-Rom, Blackman, …) leading to speedups will be presented. Most have already been implemented in ImageMagick and VIPS. In some cases, calling them directly is faster (and more accurate) than using Look Up Tables. Another example of simplification: Highly efficient trig.-free computation of the smallest ellipse containing both the image of a disk by an linear tranformation and the disk itself, and computation of the containing parallelogram with horizontal top and bottom sides. (Presenters: NR and CR. Authors: NR, JC, ATh and CR.)

* Highly accurate polynomial approximation of windowed-Sinc and windowed-Jinc filter kernels

The Boost C++ minimax package can be used to produce fast and highly accurate polynomial approximations of non-polynomial filter kernels. Examples involving both the Sine and Bessel versions of Lanczos 2 and Lanczos 3 will be given. Similar approximations are used by ImageMagick. (Presenter: CR. Authors: NR, CR and ATh.)

Adam Fourney and Michael Terry http://hci.uwaterloo.ca/research/query_log_analysis Play (26min) Download: FLV | MOV | OGG | MP3

Every second of every day, people use Google to troubleshoot problems and to learn how to accomplish their goals. While Google doesn’t make its search query logs publicly available, Google Suggest can be used to learn the most popular queries for any software.

We systematically mined all of the query suggestions for GIMP, Inkscape, Blender, and Scribus to learn about the primary needs and problems encountered by users of these software applications. As examples, our technique collected ~15,000 common queries for GIMP and ~2500 queries for Inkscape.

In this talk, we will present samples of the most common search queries for these applications, and what they suggest about the software user bases and their needs.

Andreas Vox http://www.scribus.net Play (16min) Download: FLV | MOV | OGG | MP3

A Document Object Model serves more than one goal. Apart from storing the document’s data, it also supports scripting and serialization. It’s also the backbone for talking about compatibility, extensibility and testing.

In this talk I’ll propose to use Relax NG for describing a new Scribus file format that also serves as DOM. With some tools, design patterns and Qt’s metaobject framework it will be possible to generate a DOM that maps 1:1 to the new file format and is accessible to scripts.

Alexandre Quessy http://toonloop.com/ Play (16min) Download: FLV | MOV | OGG | MP3

In this technical talk, the main author of Toonloop will describe how this free software works and why it has been designed with simplicity in mind. It displays image loops, and allows to apply GLSL shader effects on them. The use of the Clutter toolkit makes it possible to create rich user interfaces that are well suited for fullscreen video in the context of live performances and artistic installations. Thanks to GStreamer, Toonloop could grow and upport more operating system and video input types. Also, OSC and MIDI controls make the application open to new possibilities for interactive setups.

ginger coons Play (25min) Download: FLV | MOV | OGG | MP3

]]> http://river-valley.tv/open-colour-standard-dissipating-the-vapour/feed/ 0 http://river-valley.tv/maio-nosso-maio/#utm_source=rss&utm_medium=rss&utm_campaign=maio-nosso-maio http://river-valley.tv/maio-nosso-maio/#comments Thu, 02 Jun 2011 11:52:53 +0000 Admin http://river-valley.tv/?p=9636

Farid Abedelnour Play (15min) Download: FLV | MOV | OGG | MP3

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Barry Threw Play (13min) Download: FLV | MOV | OGG | MP3

]]> http://river-valley.tv/hypermedia-and-the-annihilation-of-time-and-space/feed/ 0 http://river-valley.tv/laidout-and-strange-interfaces/#utm_source=rss&utm_medium=rss&utm_campaign=laidout-and-strange-interfaces http://river-valley.tv/laidout-and-strange-interfaces/#comments Thu, 02 Jun 2011 11:02:40 +0000 Admin http://river-valley.tv/?p=9632

Tom Lechner http://www.tomlechner.com Play (12min) Download: FLV | MOV | OGG | MP3

Updates on improvements in Laidout from the last 12 months, such as onscreen imposition folding, integration of the polyhedron unwrapper, and multi-mouse/multitouch capabilities.

Also discussion of hardware and software interfaces as it pertains to the creation of artwork, particularly adventures in d-i-y multitouch surfaces.

Peter Linnell http://www.scribus.net Play (17min) Download: FLV | MOV | OGG | MP3

Scribus is an Open Source program that brings award-winning professional page layout to Linux/UNIX, Mac OS X, OS/2 Warp 4/eComStation and Windows desktops with a combination of “press-ready” output and new approaches to page layout. Underneath the modern and user friendly interface, Scribus supports professional publishing features, such as CMYK color, separations, Spot Colors, ICC color management and versatile PDF creation.

Frederik De Bleser, Tom De Smedt, Lucas Nijs http://beta.nodebox.net Play (30min) Download: FLV | MOV | OGG | MP3

NodeBox 2 is an open-source application that generates visual output based on programming code, a node-based interface or natural language (i.e. English.) In the user interface you connect nodes (building blocks) together to create interesting visuals. Nodes can be opened to examine or edit the (Python) source code. AI techniques allow the system to evaluate written text and transform it into nodes using analogy and conceptual association.

Jakub Steiner http://jimmac.musichall.cz Play (25min) Download: FLV | MOV | OGG | MP3

Learn how to worry less about the file system and more about your artwork in this overview of Inkscape workflows. Various details of the workflow and tools are discussed with specific examples from projects including, but not limited to, Firefox, GNOME and Moblin.

Stani Michels http://photobatch.stani.be Play (11min) Download: FLV | MOV | OGG | MP3

Phatch is a user friendly, cross-platform Photo Batch Processor and EXIF Renamer with a nice graphical user interface. Phatch handles all popular image formats and can duplicate (sub)folder hierarchies. It can batch resize, rotate, apply shadows, perspective, rounded corners and many more actions – in minutes instead of the hours or days needed to do so manually.

Nathan Willis Play (60min) Download: FLV | MOV | OGG | MP3

This session will be a moderated panel discussion of some specific questions that relate to how the FOSS graphics suite can or should react to the RIA movement, which is largely non-free. In addition to Picnik and the other well-known services, Google Docs has now added a Drawing app, so RIA isn’t going away.

Jon Phillips http://aikiframework.org, http://openclipart.org Play (30min) Download: FLV | MOV | OGG | MP3

In the past, applying a free software development style to web applications blocked development on the Open Clip Art Library. The project has nearly joined the #FAIL list multiple times. Since web sites are centralized pieces of software running continuously, there is a need for secure access to the live code. This forces a division of managing a running website, merging software changes from developers, and keeping development on the software progressing healthily. To complicate matters, a site like Open Clip Art Library has an active base of librarians and artists uploading and editing new clipart. The new Aiki Framework aims to solve all these issues.

Eric Schrijver http://ericschrijver.nl Play (33min) Download: FLV | MOV | OGG | MP3

Graphic design as a discipline seems to be firmly focussed on print media, leaving designing for the screen to interaction and web designers. This is a shame. As we spend more time online, public space itself is becoming digital, and in this space the pluriformity of contemporary graphic design is sorely missed. In interface and web design, aesthetic decisions by a few major software developers have a disproportionate effect on the visual landscape.

Andy Fitzsimon http://andy.brisgeek.com Play (27min) Download: FLV | MOV | OGG | MP3

Inkscape’s popularity is growing day by day. How do we help new users master the tool? How do we welcome these users and invite them to participate in the community and contribute their art, their bug reports and their ideas to help us innovate? This talk briefly summarises the available resources out there from online tutorials, screen-casts, channels & forums to the offline books, magazines, courses, classes and user groups. Half talk, half debate, this session aims to set the scene for a discussion on the issues of supporting new users, and explore ways to do it better by sharing ideas and working together.

ginger coons http://opencolour.org Play (25min) Download: FLV | MOV | OGG | MP3

Jumping off of previous discussions about the barriers preventing professional designers from using F/LOSS graphics programs, this talk will present the Open Colour Standard. OCS is a project intended to add precise colour to the F/LOSS graphics workflow. It aims to make professional colour management a reality for F/LOSS graphics.

Pete Ippel http://peteippel.com Play (19min) Download: FLV | MOV | OGG | MP3

I discuss revivalist trends in art with relationship to the hand-made and folk tradition, specifically in fiber arts. Innovative artists, having digital fluency, easily navigate networked communities and collaborate openly. By comparing pixels to patchwork, vectors to stitches, bitmaps to patterns, and layers to quilts, they investigate the overlap among a variety of disciplines.

Lukáš Tvrdý http://lukast.mediablog.sk/log Play (21min) Download: FLV | MOV | OGG | MP3

Among free software graphics application, Krita is unique in that its painting system is plugin-based: all Krita brush engines are plugins. Starting with the sumi-e hairy brush engine I worked on during the 2008 Google Summer of Code, I continued writing over half a dozen experimental, funny and useful brush engine for my Master’s Thesis at the VŠBTechnical University of Ostrava. This presentation will start with a live demonstration of these brush engines. The second part will be more technical: I will give an introduction into the art of writing brush engine plugins for Krita. It’s easy and fun, not difficult at all!

Ana Carvalho Play (8min) Download: FLV | MOV | OGG | MP3

Plana started as an academic project by Luís Camanho for a small independent publisher on illustration and comics. Free software was embraced almost from the very beginning. It was an answer to economic constraints but also reflection of our empathy with the libre graphics world. As a consequence, we got interested in copyright and embraced the sharing culture, informing and encouraging our authors to distribute their work for free. With five books published since 2008 we would like to share our experiences so far.

Alexandre Prokoudine http://prokoudine.info Play (14min) Download: FLV | MOV | OGG | MP3

State of the art digital photography workflow on Linux and how darktable finally makes it possible.

Steve Conklin Play (11min) Download: FLV | MOV | OGG | MP3

A quick presentation about the current state of multi-touch support in Ubuntu, and the road map for the next release.

Ricardo Lafuente http://tinkerhouse.net Play (11min) Download: FLV | MOV | OGG | MP3

Shoebot is a graphics robot with which you can create complex images and animations using a very simple syntax on top of the Python programming language. It is specifically aimed at designers and artists who want to incorporate code into their creations, but it also provides for a good educational framework for introducing code-based approaches, with a simple interface and quick image-based results.

Marcus Holland-Moritz http://nzbook.mhxnet.de Play (11min) Download: FLV | MOV | OGG | MP3

In 2009 I made a trip to New Zealand where I took about 15,000 photos. After I spent weeks selecting and processing the good shots and getting very positive feedback from my friends, I decided to try to make a book about my trip. I had already been using Scribus in the past, but not for anything beyond very simple one-page layouts. Trying to figure out how to do a whole book took me a while, not only working with (and on) the tools, but also reading a lot about design, typography and more esoteric stuff like colour management.

Ton Roosendaal http://www.blender.org Play (20min) Download: FLV | MOV | OGG | MP3

Blender is the free open source 3D content creation suite, available for all major operating systems under the GNU General Public License. Ton Roosendaal presents work on Blender the past year, current status and plans for the future.

Tom Lechner Play (26min) Download: FLV | MOV | OGG | MP3

Laidout is a desktop publishing program that I use primarily to make cartoon books. It can lay out images and gradients (including mesh gradients) onto booklets, as well as onto arbitrary polyhedral surfaces. Other novel features include controlled multiple image import, and image mesh warping. Being debugged currently are multicontact abilities. Discussion will also include experiences with various open source software for related tasks.

Igor Novikov http://sk1project.org Play (18min) Download: FLV | MOV | OGG | MP3

The project was started in 2003 as a Sketch fork. Since that time sK1 became an awardwinning Open Source application and supports a lot of unique and professional publishing features. This year is a serious milestone in project development – global refactoring, multiplatform versions etc.

Hin-Tak Leung http://www.artifex.com, http://www.ghostscript.com Play (21min) Download: FLV | MOV | OGG | MP3

The Ghostscript team has a few on-going or soon-to-complete development efforts which would be of great interest to the free graphics community. We have done some major work with ICC-profiles which is about to be merged into trunk for release in August (hopefully.) We have also integrated freetype as a font-renderer, and made under-the-hood improvements in the form of clist and going towards multi-threaded rendering. In the embedded/small-memory-footprint application area, we have been working on mupdf. These are just a few highlights.

Felipe Corrêa da Silva Sanches http://gnu.org/software/libredwg Play (22min) Download: FLV | MOV | OGG | MP3

LibreDWG is a library to handle files in the DWG format used by AutoCAD. I will present a general overview of the history of the project, explaining how a group of students at the University of São Paulo developed a new and relevant free software library (listed in the FSF High Priority Projects List) and how it became approved as an official GNU package.

Florian Cramer, Aymeric Mansoux, Michael Murtaugh http://pzwart.wdka.nl/networked-media/ Play (43min) Download: FLV | MOV | OGG | MP3

Open Source plays an increasingly important role in arts and design through Web applications and open licenses. The Networked Media design programme of the Piet Zwart Institute has, for years, employed Open Source more radically for all course work, on servers and clients, with a focus on the command line, coding and FLOSS philosophy to foster rethinking of media instead of off-the-shelf design.

Nicu Buculei, Martin Sourada Fedora, http://fedoraproject.org/wiki/Artwork Play (20min) Download: FLV | MOV | OGG | MP3

The Fedora Design Team is an Open Community consisting from people from all around the world collaborating on various projects, from desktop wallpapers to posters, icons, website and application mockups, CD/DVD art and more. Everything created by the team is licensed freely, according with Fedora’s foundations: Freedom, Friends, Features, First.

Dave Crossland http://abattis.org/cantarell Play (22min) Download: FLV | MOV | OGG | MP3

This talk presents the techniques and software I used and developed for creating the Cantarell font family, and looks at the future of free software type design. During the last 2 years I undertook the prestigious MA Typeface Design programme at the University of Reading, UK. The course involves two major projects, a theoretical dissertation and a practical type design. I wrote about the nexus of free software and typeface design, and used only free software to design Cantarell.

Mirko Tobias Schaefer http://www.mtschaefer.net Play (18min) Download: FLV | MOV | OGG | MP3

Making the world a better place has been a powerful engine of ingenuity and has driven technological development from Claude Chappe’s signalling system to Samuel Morse’s telegraph, from Paul Otlet’s information indexes to Ted Nelson’s hyperspace. Information technology in general and the World Wide Web and its label Web 2.0 in particular tell a legend of empowering users and enabling participation.

Dave Crossland Play (12min) Download: FLV | MOV | OGG | MP3

Raph Levien is a longtime contributor to the libre graphics community (libart, Ghostscript, Advogato) and launched Spiro at LGM 2007 in Montreal. Now working for Google, he is leading an initiative to sponsor libre font projects and services. This talk by Dave Crossland, a sponsored type designer, will outline the sponsorship opportunity for type designers wishing to design fonts that can be shared and collaboratively improved. It will also offer one of the first public demonstrations of a related Google font project.

Denis Moyogo Jacquerye http://www.africanlocalisation.net/en/fonts Play (13min) Download: FLV | MOV | OGG | MP3

This presentation will discuss the requirements of orthographies for African languages in Latin scripts and shows how to implement them with modern fonts technologies. Good practices, mistakes and evaluation of fonts for African languages with high requirements will be discussed. The presentation will also showcase various font projects that are benefitting from the input, feedback and work of the Open Source community.

Ricardo Lafuente Play (11min) Download: FLV | MOV | OGG | MP3

Batch Commander is a tool that provides a graphical interface for styling (La)TeX documents. While the plaintext-based nature of TeX is ideal for automated typesetting, Batch Commander provides a GUI for editing document styles visually, instead of manually editing style files and recompiling. A quick previewing system and support for extensions make Batch Commander worth a look for anyone using TeX, LaTeX or ConTeXt for their own work.

Jasper van de Gronde http://wiki.inkscape.org/wiki/index.php/Diffusion_Curves Play (23min) Download: FLV | MOV | OGG | MP3

Diffusion Curves are an exciting and flexible new primitive for creating images with smooth color transitions. However, the best method to display diffusion curves so far is to rasterize them, which is unsuitable for use with SVG for example. I will present the basic idea behind Diffusion Curves, an alternative interpretation and an approach to creating a purely vector based representation (discussion welcome).

OSP http://ospublish.constantvzw.org Play (5min) Download: FLV | MOV | OGG | MP3

OSP (Open Source Publishing) is a multidisciplinary, multi-national design collective based in Brussels. Since 2006 they have been experimenting with Free Software for design. In this talk, OSP tours you at the speed of light through work done since LGM 2009.

Nicolas Spalinger Openfont Play (22min) Download: FLV | MOV | OGG | MP3

Best practices for designing, releasing, maintaining and packaging open fonts. A review of dos and don’ts based on real world examples and community experiences. Various tips and tools for authors, designers and contributors to open font projects to Do The Right Thing in the complicated area of open fonts.

• http://planet.open-fonts.org
• http://scripts.sil.org/OFL
• http://pkg-fonts.alioth.debian.org
• https://launchpad.net/~fonts

Kai-Uwe Behrmann http://www.oyranos.org Play (30min) Download: FLV | MOV | OGG | MP3

Devices seldom agree about colours by default. RGB (Red/Green/Blue) colour spaces in digital or analog cameras are different from laptop and desktop monitors and those are different from inkjet printers, even if they do not only support a CMYK (Cyan/Magenta/Yellow/Key-Black) colour space. The talk gives an overview of how these diverging colours can be brought together by the configurable Oyranos Colour Management System on a system level. It will further discuss what is required by applications to make use of the provided ICC profile information.

Christopher Adams http://techne.raysend.com Play (22min) Download: FLV | MOV | OGG | MP3

Type is a tool. This talk aims to give an inspiring overview of excellence in the typographic arts, with a special emphasis on fonts and world-class book design using free software.

Hong Phuc Dang http://foss.vn, http://2009.gnome.asia Play (28min) Download: FLV | MOV | OGG | MP3

There are so many great F/LOSS projects out there, that get me excited. And we have millions of people studying IT, design, communication, translation and many other subjects in the world. Everyone could contribute to F/LOSS. So, when I sometimes read about projects I cannot believe that many are lacking contributors. As a user and small and humble contributor I am happy about the many improvements in the F/LOSS world, but I am selfish and I would like to see moving things forward even more. So, I figured out that I want to support projects, that are looking to get more contributors.

Barry Threw http://www.barrythrew.com Play (27min) Download: FLV | MOV | OGG | MP3

This talk will cover the issues of bringing live interpretive performance back into electronic music and multimedia performance culture. Issues of technology obsolesce, interface, types of users, hardware, and historical cultures patterns will be discussed. Ways the open source community can help build tools that will be useful to the video or music artists interested in interpretive performance of works will be suggested.

Rebecca Hargrave Malamud http://ruraldesigncollective.org Play (8min) Download: FLV | MOV | OGG | MP3

The Rural Design Collective in Port Orford, Oregon, is a not-for-profit professional mentoring program with a local focus designed to help motivated, creative people begin an independent career on the Internet. They learn to work remotely using collaborative tools and social-networking sites, and are required to meet production deadlines and interact with their clients one-on-one either using online communication tools or by conducting on-site meetings. The program is focused on teaching and using open source technologies (Video Talk).

Susan L. Spencer http://www.sew-brilliant.org Play (12min) Download: FLV | MOV | OGG | MP3

This presentation invites developers to help create a suite of open source software to create and modify clothing patterns in open data formats to match an individual’s body measurement and generate customized patterns as printable files. Current applications are proprietary, do not interoperate, and are expensive. An open source solution would enable individual and small label designers to create and provide custom sized patterns without purchasing high-cost proprietary software.

Helen Varley Jamieson http://www.upstage.org.nz, http://www.creative-catalyst.com Play (11min) Download: FLV | MOV | OGG | MP3

Artists use UpStage to collaborate in real-time on live performances for an online audience, using the web interface to manipulate graphics, animations, text, text2speech, audio, web cams and drawing, creating live performances that are accessible to anyone with a standard browser and internet connection. The application, which is open source and written in Python, sits on a server so there is no need for artists or audience to download or install anything.

Aymeric Mansoux http://puredyne.goto10.org, https://launchpad.net/puredyn Play (15min) Download: FLV | MOV | OGG | MP3

Puredyne is the USB-bootable GNU/Linux operating system for creative media. It is a live distribution, you don’t need to install anything – simply boot your computer using a USB key or CD/DVD and you’re ready to start using software such as Pure Data, Supercollider, Icecast, Csound, Fluxus, Processing, Arduino, Gimp, Inkscape and much more.

Jose David Cuartas Correa http://sologicolibre.org/en Play (11min) Download: FLV | MOV | OGG | MP3

This session shows how when we put together Free software, free content and open hardware, we get something that we can call: “Collaborative intellectual property.” (Video Talk)

Akkana Peck http://shallowsky.com, http://gimpbook.com Play (26min) Download: FLV | MOV | OGG | MP3

Much of the power of GIMP comes from its plug-in architecture. Most of the functions you use in GIMP, including everything in the Filters menu, are implemented as plug-ins. Happily, writing GIMP plug-ins is easy. This talk will show you how to write new plug-ins or extend existing ones in two languages: Script-fu and Python

Peter Sikking Gimp. http://mmiworks.net/blog Play (31min) Download: FLV | MOV | OGG | MP3

The (eternally) imminent integration of GEGL into GIMP—or rather, fully basing GIMP on GEGL—holds great promise. Lossless editing and unlimited re-adjustment and reordering of image editing steps are only the beginning. However there is big gap between the nuts and bolts of the GEGL graph and nodes, and the world of GIMP users doing high-end image manipulation for artistic results. User interfaces bridge this gap and Peter Sikking, principal Interaction Architect at m+mi works, and lead Interaction Architect of GIMP, will outline in this talk the UI principles that can unlock the power of GEGL in a GIMP context.

Martin Renold MyPaint Play (23min) Download: FLV | MOV | OGG | MP3

Python is a nice high-level language, but most graphic applications have some code that must run fast at any price. Everyone knows that it is possible to write C/C++ extensions for Python. Not everyone knows that it can be done cleanly, simply and DRY.