PIKSEL

GridFlow 0.9.4

http://gridflow.ca/download/gridflow-0.9.4.tar.gz

Gridflow is a multidimensional dataflow processing library for PureData, designed for interactive multimedia.

LiVES version 0.9.9.1 released!

URLs:
http://www.xs4all.nl/~salsaman/lives/current/LiVES-0.9.9.1.tar.bz2
http://www.xs4all.nl/~salsaman/lives/current/LiVES-0.9.9.1.tar.gz

md5sums:
f568c6a3ba59ecf3f52b7c56d7bc2a73 LiVES-0.9.9.1.tar.bz2
1cbcae4f9475c89f743f8b51a8d17030 LiVES-0.9.9.1.tar.gz

http://lives.sourceforge.net

GEGL 0.0.18
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GEGL (Generic Graphics Library) is a graph based image processing framework.

GEGL provides infrastructure to do demand based cached non destructive image
editing on larger than RAM buffers. Through babl it provides support for a
wide range of color models and pixel storage formats for input and output.

This development release will include optimizations for the cpu capabilities
of the host system. Pass –disable-mmx and –disable-sse to configure to
disable these when building packages that should work on a wider range of
hardware. Making GEGL adapt at runtime is a blocker for the next release.

There is no new API in this release thus bindings do not need to be updated.

The edgeflow filter works as follows:
first a sobel filter is applied. The “lightness” of the resulting pixel is examined, where lightness is defined as (max+min)/2. Max and min are max(R,G,B) and min(R,G,B).

The lightness is then compared to a threshold value (set by the user from 0 – 255). If the lightness is > threshold, then the HSL (hue, saturation, lightness) values of the original pixel are computed. The two lightness values are added using a scaling factor for the sobel pixel. Finally the HSL values are converted back to RGB space to give the result.

Optionally, pixels where the sobel value is below the threshold can be darkened, to provide a heightened contrast effect.

The filter can be downloaded here:
http://www.xs4all.nl/~salsaman/edgeglow.tar.bz2

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The cluster plugin is an implementation of the popular and relatively simple k-means clustering algorithm, where regions of an image are identified by their proximity in color and space to cluster centers and assigned the average color of the region. The cluster centers are updated each frame with the average location of all the points in the region. If distance is given the most weight it looks like a voronoi diagram.

Demonstration video here made in gephex:
http://vimeo.com/1059913

Source and linux i386 .so here:
http://binarymillenium.googlecode.com/svn/trunk/frei0r/cluster/

a new FreeJ 0.10 “scripting in the bush” release is out!

http://freej.dyne.org

quickly get the sourcecode from:

ftp://ftp.dyne.org/freej/releases/freej-0.10.tar.gz
ftp://ftp.dyne.org/freej/releases/freej-0.10.tar.gz.asc

announced and demonstrated directly from the LPM VJ Festival in Roma
http://lpm.flyer.it/2008/programme/dett_639.htm

for full information please refer to the README and other
documentation found in ftp://ftp.dyne.org/freej

the next Lumiera developer meeting is scheduled on

Thursday the 5. June 2008 at 21:00 UTC

The meeting will be held on irc.freenode.net in #lumiera

The agenda for this meeting is at
http://www.pipapo.org/pipawiki/Lumiera/MonthlyMeetings

Not much Topics so far, please feel free to add further topics.
One point to discuss will be how to organize the further GUI planning/brainstorming such that:
– we don’t loose any good ideas
– we don’t work against each other
– we don’t get carried away by dreaming about features we don’t have the resources to implement on a reasonable time scale.

We know the time of the meeting may be a problem for people living in Asia or “down under”. We are willing to use a alternating time scheme if necessary. So please speak up, if you’d want to attend on a regular base but can’t because of the meeting time!

VideoJack is a mechanism to route video signals between applications running on the same computer. It’s currently being developed as a patch to the jack audio server.

The videojack patch is updated to the last release of jack (0.109.2), and available for download from the sourceforge subversion repository:
http://videojack.svn.sourceforge.net/viewvc/videojack/

Anything with a version number of 2 is part of the videojack patch.

Note: the URL will probably change, and all of this will end up in:
http://videojack.svn.sourceforge.net/viewvc/videojack/jack/

The (non-example) clients will be placed in:
http://videojack.svn.sourceforge.net/viewvc/videojack/clients/

OME developer Richard Spindler has finished a new Frei0r Plugin.

It is a Mixer2 kind, and it takes two inputs:
The first one is an UVMap, where the R and G Color values represent X and Y coordinates for the second input which could be an arbitrary image.

(Click the thumbnail image for a larger example taken from Richards excellent node editor included in OME)

Get it here:
http://propirate.net/frei0r/frei0r-plugins-1.1.21.tar.gz

The following new plugins are included:

* Lenscorrection:
Provides a simple “Fish-Eye” effect, that can be used to compensate for wide angel lens distortion.
* Transparency:
Adds a lever to control the transparency level of a Video by adjusting the alpha channel values.
* Color Distance:
Has a color selector, and the output for every pixel is its distance from the selected color in a 3-D RGB cube. Good for simple Green-Screen stuff.
* Perspective:
A pseudo perspective distortion, has four adjustable points that can be moved to arbitrary places in the canvas, and the corners of the video will follow. Good for nice 3D-Perspectives.
* RGB Parade:
RGB Wave Form View, nice for image analysis and color grading/correction work.
* Vectorscope:
YCrCb Vector-Scope, for image analysis and color grading/correction.

Richard Spindler just created a new Frei0r filter, that takes 4 points as parameters,
and distorts the image such that its corners fit to those 4 points.
It is propably better explained through the screenshot below (click it for a larger view).

The code is available here:
http://propirate.net/oracle/zipfiles/perspective.c

As a last minute special for Piksel06, David has just released the PikseLiveCD
developer dvd. It’s a first test of a developer version of the liveCD which
can be used for packaging apps to be made avaiable from a common repository.

Check it out!

http://bekstation.bek.no/piksel/piksel-dev-0.3.iso
http://bekstation.bek.no/piksel/piksel-dev-0.3.md5

It’s currently 1,4 Gb

Canadian collective Drone Team is coming to Piksel for the first time this year, and have just announced their specially commisioned pre-piksel05 residency to do a collaborative installation together with the S.O.U.P krew (Switzerland/Columbia) – also Piksel first-timers.

The Drone Team is a collective of artist-developers based around the use and development of Drone – a GePhex-like app for Vj’ing and installations. They are also heavily involved in development of Frei0r plugins, and we expect to see some new Frei0r stuff coming out of Piksel05 brainstorming.

Their announcement below: