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http://dx.doi.org/10.5909/JBE.2013.18.5.722

Multiple Layers Block Overlapped Histogram Equalization based on The Detail Information  

Hwang, Jae-Min (Department of Control & Instrumentation Engineering, Changwon National University)
Kwon, Oh-Seol (Department of Control & Instrumentation Engineering, Changwon National University)
Publication Information
Journal of Broadcast Engineering / v.18, no.5, 2013 , pp. 722-729 More about this Journal
Abstract
For low contrast images, a histogram equalization is possible to easily identify information when the intensity is concentrated in an image. Over contrast enhancement is the problem of generating an unnatural image cognitively because the focus of existing techniques was the contrast enhancement. In order to solve this problem, CLAHE method solves unnatural problems by limiting contrast using a maximum threshold. However, this method has an extra problem that concealed detail information in an image. This paper proposes a detail-map based on the multiple layers block overlapped histogram equalization in order to avoid loss of detail information. Loss of detail information has been made to minimize as combining images with limited contrast enhancement using a detail-map in each layers.
Keywords
Detail; Contrast; Histogram Equalization;
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