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电子学报  2013 

基于亮度保持的子图像加权对比度增强

DOI: 10.3969/j.issn.0372-2112.2013.02.012, PP. 281-287

Keywords: 直方图均衡,亮度保持,对比度增强

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Abstract:

本文提出了一种有效的基于亮度保持对比度增强算法.利用BBHE(brightnesspreservingbi-histogramequalization)算法产生的两个子图像,对两个子图像进行加权求和,从而得到输出图像.同时,根据输入图像以及两个子图像的亮度均值,给出了一种基于亮度保持的权重系数的计算方法.实验结果表明,与其它亮度保持对比度增强算法相比,本文算法能够更准确地保持输入图像的亮度均值以及较好地实现对比度增强.另外,本文算法计算简单,能够满足实时性的要求.

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