Computing von Kries Illuminant Changes by Piecewise Inversion of Cumulative Color Histograms
We present a linear algorithm for the computation of the illuminant change occurring between two color pictures of a scene. We model the light variations with the von Kries diagonal transform and we estimate it by minimizing a dissimilarity measure between the piecewise inversions of the cumulative...
| Autores: | , |
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| Formato: | artículo |
| Fecha de publicación: | 2009 |
| País: | España |
| Recursos: | Universitat Autònoma de Barcelona |
| Repositorio: | Dipòsit Digital de Documents de la UAB |
| Idioma: | inglés |
| OAI Identifier: | oai:ddd.uab.cat:52591 |
| Acesso em linha: | https://ddd.uab.cat/record/52591 https://dx.doi.org/urn:doi:10.5565/rev/elcvia.264 |
| Access Level: | acceso abierto |
| Palavra-chave: | Anàlisi d'imatges de color Histogrames de color Canvis il·luminant Model von Kries Recuperació de la imatge Análisis de imágenes de color Histogramas de color Cambios Iluminante MOdelo von Kries Recuperación de la imagen Color Image Analysis Color Histograms Illuminant Changes Von Kries Model Image Retrieval |
| Resumo: | We present a linear algorithm for the computation of the illuminant change occurring between two color pictures of a scene. We model the light variations with the von Kries diagonal transform and we estimate it by minimizing a dissimilarity measure between the piecewise inversions of the cumulative color histograms of the considered images. We also propose a method for illuminant invariant image recognition based on our von Kries transform estimate. |
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