Watercolor effect
The watercolor effect is an optical illusion discovered in 1987 by Baingio Pinna, John S. Werner and Lothar Spillmann , in which the coloring of contours influences the perception of the shape of the enclosed figure.
If you surround a figure with a double contour of a darker and a lighter color, the lighter color seems to spread over the surface over a fairly large distance. If the lighter color is on the inside of the contour, the figure appears raised, blurred, and colored. If the lighter color is on the outside, the figure appears deepened, sharply contoured and chalky white.
literature
- Baingio Pinna, John S. Werner, Lothar Spillmann: The watercolor effect. A new principle of grouping and figure-ground organization. In: Vision Research. 43, 2003, pp. 43-52
- Stephen Grossberg, Baingio Pinna: The watercolor illusion and neon color spreading: a unified analysis of new cases and neural mechanisms . In: Journal of the Optical Society of America . 22, No. 10, 2005, pp. 2207-2221.
- John S. Werner, Baingio Pinna, Lothar Spillmann: Color illusions and the brain. In: Spectrum of Science. 8, 2007, p. 32ff
Individual evidence
- ↑ Pinna, B. (1987). Un effetto di colorazione. In V. Majer, M. Maeran, and M. Santinello, Il laboratorio e la città. XXI Congresso degli Psicologi Italiani, 158