Adaptive Local Contrast Enhancement of High Dynamic Range Image

摘要：

Most existing global contrast enhancement algorithm can not deal with high dynamic range images. Thus a simplified logarithmic transformation equation has been proposed in this paper. A partially overlapped sub-block method is also adopted to perform local contrast enhancement. For purpose of optimization, two contrast measures are used for finding optimal transformation parameters. They merge into a new algorithm, called POSLT (Partially Overlapped Subblock Logarithmic transformation). POSLT exhibits good performance and Controllability even if it has high computational complexity. Our experimental results give firmly support of POSLT.

关键词： Contrast Enhancement High Dynamic Range Image logarithmic transformation Contrast Measure Sub-block.

作者: Linan Jiao Zhaoyun Sun Aimin Sha Juan Zhang

作者单位: College of Information Engineering,Changan University Middle Section of Ring Road 2 South,710064 Xi College of Highway,Changan University Middle Section of Ring Road 2 South,710064 Xian,China

会议类型: 国际会议

会议名称: 2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)

会议地点: 北京

会议语种:英文

页码: 3742-3746

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）