« Baldes de Água, Tartes e Orelhas de Burro | Entrada | Anjos, Demónios e Homens »
dezembro 10, 2008
Leilão Pherographs
E ainda Timor Mortis Conturbat Me, até 8 de Janeiro na P4Photography.
(...)
In this paper, we analyzed an image processing tool, based on an Artificial Life model, that may be regarded (metaphorically or not) as a modern version of the old camera obscura, the apparatus that was first used as canvas for the artist’s pencil, and later, with the invention of Photography, became the camera that records the lines drawn by the pencil of nature. The camera obscura for ants evolves monochromatic drawings out of artificial pheromone fields and ants’ positions in the environment. To the results attained by representing the pheromone fields, we called Pherographia: drawing by pheromones. The system is also able to react to changing environments and self-adapt to new images, an ability that give us the opportunity to generate videos that illustrate not only the emergence of global perception but also the swarm’s capacity to “forget” previous images and create new cognitive maps.
Excepting Muybridge’s pictures (and Lena’s image on Appendix A), the drawings presented in this paper were obtained by evolving the swarm on black-and-white negatives found in a flea market, and are part of a work in progress that aims at mixing vernacular photography [34] and Pherographia.
(...)
Carlos M. Fernandes, in Pherographia: Drawing By Ants (a aguardar publicação).
Carlos Miguel Fernandes
Publicado por CMF às dezembro 10, 2008 04:07 AM
Trackback Pings
TrackBack URL para esta entrada:
http://no-mundo.weblog.com.pt/privado/mt-tb.cgi/176717
Comentários
Se é da célebre fotografia da Lena que fala nesse apêndice A, tenho uma pergunta: as formigas andaram a passear pelo rosto (upload.wikimedia.org/wikipedia/en/2/24/Lenna.png) ou decidiram fazer carreiros por toda a própria Lena (photos27.flickr.com/35241466_5a1114176e_o.jpg)? >-)
Publicado por: Zé Carlos em dezembro 10, 2008 08:35 AM
Pelo rosto, pelo rosto. Já agora, para esclarecer quem desconhece a história, fica aqui mais um pouco do mesmo artigo:
36. Lena’s image is widely used to test image-processing tools. The story goes back to 1972, when the original image of Lena Soderberg was published on a Playboy magazine. Later, it was digitized and cropped at the University of Southern California, and somehow made its way through an uncountable number of publications in the image-processing research field.
Publicado por: CMF em dezembro 10, 2008 12:50 PM
Para uma descrição ainda ainda mais detalhada dessa fotografia:
www.cs.cmu.edu/~chuck/lennapg/
Publicado por: Bruno em dezembro 11, 2008 12:39 PM