Journal of the Semiconductor & Display Technology (반도체디스플레이기술학회지)

The Korean Society Of Semiconductor & Display Technology (한국반도체디스플레이기술학회)
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Improved Algorithm of Sectional Tone Mapping for HDR Images

HDR 이미지를 위한 단면 톤 매핑 개선 알고리즘 구현

  • Lee, Yong-Hwan (Dept. of Digital Contents, Wonkwang University) ;
  • Kim, Heung-Jun (Dept. of Computer Science and Engineering, Gyeongsang National University)
  • 이용환 (원광대학교 디지털콘텐츠공학과) ;
  • 김흥준 (경상국립대학교 컴퓨터공학부)
  • Received : 2021.06.22
  • Accepted : 2021.06.23
  • Published : 2021.06.30
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Abstract

High dynamic range (HDR) technology has been drawing attention in the field of imaging and consumer entertainment. As tools for capturing and creating HDR contents, encoding, and transmission evolve to support HDR formats, various display capabilities are being developed and increased. Hence, there is need for remapping native HDR imagery for display on lower quality legacy standard dynamic range (SDR) displays. This operation is referred to as tone mapping. In this paper, we present a sectional tone mapping method by Lenzen, and expand upon a tone mapping approach to improve temporal stability while maintaining picture quality. Compared to the existing block-based sectional tone mapping, our method uses the edge awareness-based tone mapping. We estimate the performance of the objective metric on temporal flickering. The experimental result shows that the algorithm maintains a smoother relationship between the output luminance values, and this reveals success in reducing halos and improving temporal stability with adopted edge aware filtering.

Keywords

Acknowledgement

이 논문은 2020, 2021년도 경상국립대학교 대학회계 연구비 지원에 의하여 연구되었음.

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