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Flou et quantification dans les images numériques

Abstract : The first part of this thesis deals with the dequantization of digital images. We present a dequantization scheme that enhances the statistical properties of the gradient feld. We apply this method to the meaningful alignments detection developed by Agnès Desolneux. The second part presents a method to evaluate the blur in natural images. We use the morphological scale space to derive an accurate local evaluation of the blur in the image. We do not make any assumption on the type of the blur kernel.
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Contributor : Ens Cachan Bibliothèque <>
Submitted on : Monday, February 26, 2007 - 12:24:31 PM
Last modification on : Thursday, April 15, 2021 - 3:31:33 AM
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  • HAL Id : tel-00133427, version 1


Saïd Ladjal. Flou et quantification dans les images numériques. Mathématiques [math]. École normale supérieure de Cachan - ENS Cachan, 2005. Français. ⟨tel-00133427⟩



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