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Improvement of Efficient Tone-Mapping Curve using Adaptive Depth Range Coefficient  

Lee, Yong-Hwan (Dept. of Smart Mobile, Far East University)
Kim, Youngseop (Dept. of Electronics and Electrical Engineering, Dankook University)
Ahn, Byoung-Man (Humax Co.)
Publication Information
Journal of the Semiconductor & Display Technology / v.14, no.4, 2015 , pp. 92-97 More about this Journal
Abstract
The purpose of this work is to support a solution of optimizing TMO (tone mapping operator). JPEG XT Profile A and C utilize Erik Reinhard TMO that works well in most cases, however, detailed information of a scene is lost in some cases. Reinhard TMO only calculates its coefficient to have tone-mapping curve from log-average luminance, and this lead to lose details of bright and dark area of scenes in turn. Thus, this paper proposes an enhancement of the default TMO for JPEG XT Profile C to optimize tone-mapping curve. Main idea is that we divide tone mapping curve into several ranges, and set reasonable parameters for each range. By the experimental results, the proposed scheme shows and obtains better performance within a dark scene, compared to the default Reinhard TMO.
Keywords
High Dynamic Range Image; Tone-mapping; Adaptive Depth Range; JPEG XT Profile; Reinhard TMO;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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