realtime image processing with puredata

Posted on July 27, 2011
by medul.la

from august 25th to 28th, i’ll be at la cúpula media lab, in córdoba, argentina, for one more workshop. this time we will be using puredata as a tool for generating realtime images, a technique that can be applied to many different transmedia experiments in drama, cinema, performance, dance, vjing and so on. the program of the workshop is described below:

day 1

> discussion of the platform: what is puredata and what can it do?

> pd and libraries installation (a walkthrough in mac os and linux);

> intro to the patch metaphor / non-linear programming;

> intro to GEM/openGL;

> exercise 1: loading and displaying a video in GEM;

day 2

> exercise 2: puredata video mixer;

> exercise 3: realtime image filters;

days 3 and 4

> exercise 4: openCV – computer vision and puredata – face and other visual pattern identification;

> exercise 5: how to use arduino and puredata to modify images;

15 people limitation. you can apply yourself at the la cúpula’s website.

to leave you with an example of possibilities we will be discussing during the workshop, below there’s a video of a play i worked on with ricardo palmieri, gabriel camelo and the group les commediens tropicales. the multimedia scenery was made by using projection mapping techniques, with a combination of puredata and vpt (programmed by palm). hope to see you in córdoba!

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a feedback on augmented architecture

Posted on May 23, 2011
by medul.la

here’s a few images from the workshop augmented architecture, which took place earlier this may. the workshop introduced a few concepts on projection techniques/language in order to experiment with visual perception concerning objects and environments.

augmented architecture on flickr

augmented architecture

i would like to thank eduardo ricci for the pictures, and also everyone who has participated in the process of these workshops, it has been a great and constructive experience

here’s the presentation i’ve used to talk a little about the history of projection, and contemporary aspects of what André Parente calls the ‘flee from the black box”, process in which i argue projection mapping is inserted in.

i’ll probably be posting a text i’ve already written concerning the subject, with a few revisions (and a translation to english and spanish). you can download the pdf with the original version here (in portuguese).

stay tuned.

text data visualization

Posted on May 20, 2011
by medul.la

visualizing text data

i’ve uploaded a processing sketch in openprocessing platform, done as an exercise for the datajockey workshop. the sketch can be used to visualize textual data in different types of geometrical representations.

press “C” for circles, “S” for squares and rectangles, “A” for arcs and “L” for lines.

the above example is a visualization of a couple of paragraphs taken off the machado de assis’ novel dom casmurro.

you can check the source code and download the sketch here.

datajockey

Posted on May 9, 2011
by medul.la

“(…) while artists in all disciplines are now routinely computer as a tool in their work, there are still literally only a few artists out there who focus on one of the most fundamental and radical concepts associated with digital computers – that of computation itself (rather than interactivity, network, or multimedia).”.

- Lev Manovich, The Anti-Sublime Ideal in Data Art, p.6.

the concept of computation can be approached as the systematic and autonomous mathematization of communication processes. even tough the complexification of such processes is an undeniable problem, there is a fact - emphasized by Manovich - that is even more essential: the conversion of culture into one single nature of bits and bytes.

the workshop DataJockey tries to address some of these questions concerning computation processes, providing a space of discussion and experimentation about a possible image or aesthetics that dialogues with such problem.

in order to achieve that, the workshop proposes exercises with open source technologies Processing and Arduino. these tools will be used in simple examples of data conversion, so that one can experiment with an image that is real time generated, product of local circumstances (through the use of sensors and cameras) or of other contexts (network information).

from the 17th to the 31st of may, tuesdays and thursdays, in the LabMIS/Museum of Image and Sound of São Paulo.