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Enhancement of low visibility aerial images using histogram truncation and an explicit Retinex representation for balancing contrast and color consistency / Changjiang Liu in ISPRS Journal of photogrammetry and remote sensing, vol 128 (June 2017)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 128 (June 2017) . - pp 16 - 26 Titre : Enhancement of low visibility aerial images using histogram truncation and an explicit Retinex representation for balancing contrast and color consistency Type de document : Article/Communication Auteurs : Changjiang Liu, Auteur ; Irene Cheng, Auteur ; Yi Zhang, Auteur ; Anup Basu, Auteur Année de publication : 2017 Article en page(s) : pp 16 - 26 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique [Termes IGN] accentuation d'image [Termes IGN] amélioration du contraste [Termes IGN] analyse multiéchelle [Termes IGN] cohérence des couleurs [Termes IGN] histogramme [Termes IGN] image aérienne [Termes IGN] visibilité [Termes IGN] visualisation 2D Résumé : (Auteur) This paper presents an improved multi-scale Retinex (MSR) based enhancement for aerial images under low visibility. For traditional multi-scale Retinex, three scales are commonly employed, which limits its application scenarios. We extend our research to a general purpose enhanced method, and design an MSR with more than three scales. Based on the mathematical analysis and deductions, an explicit multi-scale representation is proposed that balances image contrast and color consistency. In addition, a histogram truncation technique is introduced as a post-processing strategy to remap the multi-scale Retinex output to the dynamic range of the display. Analysis of experimental results and comparisons with existing algorithms demonstrate the effectiveness and generality of the proposed method. Results on image quality assessment proves the accuracy of the proposed method with respect to both objective and subjective criteria. Numéro de notice : A2017-330 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2017.02.016 En ligne : https://doi.org/10.1016/j.isprsjprs.2017.02.016 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=85483 [article]

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