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Article Dans Une Revue International Journal of Computer Vision Année : 2019

Contrast Invariant SNR and Isotonic Regressions

Résumé

We design an image quality measure independent of local contrast changes, which constitute simple models of illumination changes. Given two images, the algorithm provides the image closest to the first one with the component tree of the second. This problem can be cast as a specific convex program called isotonic regression. We provide a few analytic properties of the solutions to this problem. We also design a tailored first order optimization procedure together with a full complexity analysis. The proposed method turns out to be practically more efficient and reliable than the best existing algorithms based on interior point methods. The algorithm has potential applications in change detection, color image processing or image fusion. A Matlab implementation is available at http://www.math.univ-toulouse.fr/ ∼ weiss/PageCodes.html.
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Dates et versions

hal-01370251 , version 1 (22-09-2016)
hal-01370251 , version 2 (13-11-2019)

Identifiants

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Pierre Weiss, Paul Escande, Gabriel Bathie, Yiqiu Dong. Contrast Invariant SNR and Isotonic Regressions. International Journal of Computer Vision, 2019, 127 (8), pp.1144-1161. ⟨10.1007/s11263-019-01161-9⟩. ⟨hal-01370251v2⟩
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