A detail-maintained tone mapping algorithm based on weighted least squares filter

doi:10.1109/AUTEEE48671.2019.9033316

CORC > 光电技术研究所 > 中国科学院光电技术研究所 > 光电探测与信号处理研究室（五室）

	A detail-maintained tone mapping algorithm based on weighted least squares filter
	Cheng, Hong; Wei, Yuxin; Zhang, Jianlin; Xu, Zhiyong
	2019-11-01
会议日期	November 22, 2019 - November 24, 2019
会议地点	Shenyang, China
DOI	10.1109/AUTEEE48671.2019.9033316
页码	269-276
英文摘要	High dynamic range (HDR) images require tone mapping to be displayed properly on lower dynamic range devices. This paper presents a detail-maintained tone mapping algorithm based on weighted least squares (WLS) filter, which is an improvement of the ATT algorithm. Our new algorithm can overcome the shortcomings of the ATT algorithm, which may lose the details of the HDR picture and cause color distortion for some colorful pictures simultaneously. We firstly decompose the input HDR image into a base layer and a detail layer by the WLS filter. Then for the base layer, its dynamic range is compressed based on histogram using a sensitivity model of the human visual system (HVS). And for the detail layer, S curve is applied to depress the large deviations away from zero and enhance the low ones. The color balance correction method is adopted to suppress color distortion. Experiments and comparisons with state-of-art tone mapping algorithms demonstrate that our proposed algorithm not only effectively compresses the input image dynamic range, but also reserves the image details well. Simultaneously, the tone mapping images of our algorithm also keep the color, contrast and overall brightness perfectly. © 2019 IEEE.
会议录	Proceedings of 2019 IEEE 2nd International Conference on Automation, Electronics and Electrical Engineering, AUTEEE 2019
会议录出版者	Institute of Electrical and Electronics Engineers Inc.
文献子类	会议论文
语种	英语
内容类型	会议论文
源URL	[http://ir.ioe.ac.cn/handle/181551/9601]
专题	光电技术研究所_光电探测与信号处理研究室（五室）
作者单位	Institute of Optics and Electronics the Chinese Academy of Sciences, University of Chinese Academy of Sciences, Chengdu, China
推荐引用方式 GB/T 7714	Cheng, Hong,Wei, Yuxin,Zhang, Jianlin,et al. A detail-maintained tone mapping algorithm based on weighted least squares filter[C]. 见:. Shenyang, China. November 22, 2019 - November 24, 2019.