Posts Tagged ‘science’
Edge-induced colour spreading
In Flank transparency: The effects of gaps, line spacing, and apparent motion by Daniel Wollschla, Antonio M Rodriguez and Donald D Hoffman, (in Perception, 2002, volume 31) , they use the term neon color spreading to refer to “the perceptual phenomenon of color that seems to disperse from image elements into their surround, thereby creating a subtle neon-like veil”, explaining that “the observed coloration overcomes `real’ figure boundaries and typically covers an area confined by subjective contours”. Here’s an example:
The authors contrast this classical neon-color-spreading phenomena with edge-induced color spreading as discussed by Pinna, Brelstaff and Spillmann (in Surface color from boundaries: A new `watercolor’ illusion‘ in Vision Research 41, 2001) where edge or flank-induced coloration does not display the neon-like quality and much more resembles pastel surface colours or a watercolour wash. In doing my own drawings I have become especially interested that the area covered by the `diffused watercolor’ can be much larger than the area that might usually be the case with neon color spreading. And I keep asking myself why I have never come across this before.
The light green ‘ground’ in this image is constructed by you the viewer in response to the colours that flank the drawn figures. Note that the ‘ground’ also shifts to ‘figure’, creating an alternative view of the image.
OneThing20: how mind and nature might connect (via itsallonething)
I keep connecting to others connecting with Gregory Bateson and the pattern which connects. The pattern which connects is itself a pattern, a meta pattern, a pattern of patterns.
It was my teacher,colleague and friend Judith Lowe, who first introduced me to the writing of Gregory Bateson and, if I remember rightly, she suggested that we read it as if it were poetry and let it wash over us, at first, as a way into it. Well, it does have that kind of poetic appeal. Although, strictly speaking, it is science writing it has this amazing aesthetic dimension. I think the film that is embedded in this reblog as well as the writing in the blog itself (just click on ‘read more’), brings out something of his poetic style. The film is a trailer for a one- hour film by Nora Bateson.
via itsallonething
Here’s a different blog with a slideshow that also reveals the aesthetic style. In relation to content, Bateson insisted that the question “what connects?” was an aesthetic question. ( I have used this slideshow before, quite recently but it’s so good that I thought it deserves another look ….or two.)
Bateson slideshow at the Rhizome Network






