收稿日期: 2015-12-09
网络出版日期: 2017-10-30
Dynamic range compression with local contrast preservation
Received date: 2015-12-09
Online published: 2017-10-30
燕明1, 胡越黎1, 胡云生2 . 保持局部对比度的动态范围压缩算法[J]. 上海大学学报(自然科学版), 2017 , 23(5) : 682 -689 . DOI: 10.12066/j.issn.1007-2861.1722
As partial detail in a high dynamic range image cannot be shown on a common display, a dynamic range compression algorithm with local contrast preservation is presented. This paper addresses the problem that ordinary algorithms reduce local contrast and damage highlighted regions, and proposes a new S shaped luminance mapping curve. Luminance is successfully enhanced by controlling intensity of the curve. Experimental results show that the algorithm can effectively compress the image dynamic range with good visual effect.
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