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Journal Articles Computer Graphics Forum Year : 2012

Intrinsic Images by Clustering

Abstract

Decomposing an input image into its intrinsic shading and reflectance components is a long-standing ill-posed problem. We present a novel algorithm that requires no user strokes and works on a single image. Based on simple assumptions about its reflectance and luminance, we first find clusters of similar reflectance in the image, and build a linear system describing the connections and relations between them. Our assumptions are less restrictive than widely-adopted Retinex-based approaches, and can be further relaxed in conflicting situations. The resulting system is robust even in the presence of areas where our assumptions do not hold. We show a wide variety of results, including natural images, objects from the MIT dataset and texture images, along with several applications, proving the versatility of our method.
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Dates and versions

hal-00761400 , version 1 (06-12-2012)

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Elena Garces, Adolfo Munoz, Jorge Lopez-Moreno, Diego Gutiérrez. Intrinsic Images by Clustering. Computer Graphics Forum, 2012, Rendering 2012, 31 (4), pp.1415-1425. ⟨10.1111/j.1467-8659.2012.03137.x⟩. ⟨hal-00761400⟩

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