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Title: Multiscaling and information content of natural color images
Author: Turiel Martínez, Antonio M.
Parga, Néstor
Ruderman, Daniel L.
Cronin, Thomas W.
Keywords: Fractals
Dinàmica de fluids
Fluid dynamics
Issue Date: 2000
Publisher: The American Physical Society
Abstract: Naive scale invariance is not a true property of natural images. Natural monochrome images possess a much richer geometrical structure, which is particularly well described in terms of multiscaling relations. This means that the pixels of a given image can be decomposed into sets, the fractal components of the image, with well-defined scaling exponents [Turiel and Parga, Neural Comput. 12, 763 (2000)]. Here it is shown that hyperspectral representations of natural scenes also exhibit multiscaling properties, observing the same kind of behavior. A precise measure of the informational relevance of the fractal components is also given, and it is shown that there are important differences between the intrinsically redundant red-green-blue system and the decorrelated one defined in Ruderman, Cronin, and Chiao [J. Opt. Soc. Am. A 15, 2036 (1998)].
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It is part of: Physical Review e, 2000, vol. 62, núm. 1, p. 1138-1148
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ISSN: 1063-651X
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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