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dc.contributor.authorTing, Chih-Chungen_US
dc.contributor.authorWu, Bing-Feien_US
dc.contributor.authorChung, Meng-Liangen_US
dc.contributor.authorChiu, Chung-Chengen_US
dc.contributor.authorWu, Ya-Chingen_US
dc.date.accessioned2019-04-03T06:35:35Z-
dc.date.available2019-04-03T06:35:35Z-
dc.date.issued2015-07-01en_US
dc.identifier.issn1424-8220en_US
dc.identifier.urihttp://dx.doi.org/10.3390/s150716981en_US
dc.identifier.urihttp://hdl.handle.net/11536/128332-
dc.description.abstractImage enhancement techniques primarily improve the contrast of an image to lend it a better appearance. One of the popular enhancement methods is histogram equalization (HE) because of its simplicity and effectiveness. However, it is rarely applied to consumer electronics products because it can cause excessive contrast enhancement and feature loss problems. These problems make the images processed by HE look unnatural and introduce unwanted artifacts in them. In this study, a visual contrast enhancement algorithm (VCEA) based on HE is proposed. VCEA considers the requirements of the human visual perception in order to address the drawbacks of HE. It effectively solves the excessive contrast enhancement problem by adjusting the spaces between two adjacent gray values of the HE histogram. In addition, VCEA reduces the effects of the feature loss problem by using the obtained spaces. Furthermore, VCEA enhances the detailed textures of an image to generate an enhanced image with better visual quality. Experimental results show that images obtained by applying VCEA have higher contrast and are more suited to human visual perception than those processed by HE and other HE-based methods.en_US
dc.language.isoen_USen_US
dc.subjectcontrast enhancementen_US
dc.subjectdynamic rangeen_US
dc.subjecthistogram equalization (HE)en_US
dc.subjectjust-noticeable difference (JND)en_US
dc.titleVisual Contrast Enhancement Algorithm Based on Histogram Equalizationen_US
dc.typeArticleen_US
dc.identifier.doi10.3390/s150716981en_US
dc.identifier.journalSENSORSen_US
dc.citation.volume15en_US
dc.citation.issue7en_US
dc.citation.spage16981en_US
dc.citation.epage16999en_US
dc.contributor.department電控工程研究所zh_TW
dc.contributor.departmentInstitute of Electrical and Control Engineeringen_US
dc.identifier.wosnumberWOS:000361788200109en_US
dc.citation.woscount6en_US
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