Scene dependence of the non-gaussian scaling properties of natural images

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dc.creatorNevado, A.
dc.creatorTuriel, A.
dc.creatorParga, N.
dc.date2001-07-16
dc.date.accessioned2026-07-07T02:42:10Z
dc.date.available2026-07-07T02:42:10Z
dc.descriptionWe report results on the scaling properties of changes in contrast of natural images in different visual environments. This study confirms the existence, in a vast class of images, of a multiplicative process relating the variations in contrast seen at two different scales, as was found in \cite{NIPS97,TuMaPaNa98}. But it also shows that the scaling exponents are not universal: Even if most images follow the same type of statistics, they do it with different values of the distribution parameters. Motivated by these results, we also present the analysis of a generative model of images that reproduces those properties and that has the correct power spectrum. Possible implications for visual processing are also discussed.
dc.description29 pages, 9 figures, LaTeX. Higher quality pictures can be requested from the authors
dc.identifierhttps://arxiv.org/abs/cond-mat/0107332
dc.identifierhttp://arxiv.org/abs/cond-mat/0107332
dc.identifierNETWORK {\bf 11} 131-152 (2000)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/18034
dc.subjectStatistical Mechanics
dc.subjectDisordered Systems and Neural Networks
dc.titleScene dependence of the non-gaussian scaling properties of natural images
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