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In this paper, the assumption regarding illumination is modified and a variable exponent functional model for Retinex is proposed to remove non\u2013uniform illumination and reduce halo artifacts. The theoretical derivation is provided and experimental results are presented to illustrate the effectiveness of the proposed model.<\/jats:p>","DOI":"10.3390\/s16060832","type":"journal-article","created":{"date-parts":[[2016,6,7]],"date-time":"2016-06-07T11:17:28Z","timestamp":1465298248000},"page":"832","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Realistic Image Rendition Using a Variable Exponent Functional Model for Retinex"],"prefix":"10.3390","volume":"16","author":[{"given":"Zeyang","family":"Dou","sequence":"first","affiliation":[{"name":"Key Laboratory of Photoelectronic Imaging Technology and System, Ministry of Education of China, Beijing Institute of Technology, Beijing 100081, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kun","family":"Gao","sequence":"additional","affiliation":[{"name":"Key Laboratory of Photoelectronic Imaging Technology and System, Ministry of Education of China, Beijing Institute of Technology, Beijing 100081, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bin","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Science, Communication University of China, Beijing 100024, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xinyan","family":"Yu","sequence":"additional","affiliation":[{"name":"School of Science, Communication University of China, Beijing 100024, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lu","family":"Han","sequence":"additional","affiliation":[{"name":"Key Laboratory of Photoelectronic Imaging Technology and System, Ministry of Education of China, Beijing Institute of Technology, Beijing 100081, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhenyu","family":"Zhu","sequence":"additional","affiliation":[{"name":"Key Laboratory of Photoelectronic Imaging Technology and System, Ministry of Education of China, Beijing Institute of Technology, Beijing 100081, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2016,6,7]]},"reference":[{"unstructured":"Visual System. 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