An adaptive algorithm for the display of high-dynamic range images

Xiaoguang Li, Kin Man Lam, Lansun Shen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

27 Citations (Scopus)

Abstract

A novel algorithm based on spatial and statistical information is proposed for the display of high-dynamic range (HDR) images. In our proposed algorithm, an image is first decomposed into a base layer and a detailed layer, which represent its smoothed and fine details, respectively. The problem of overall impression preservation is regarded as a global issue in our algorithm. Statistical-based histogram adjustment is employed to deal with the base layer. The reproduction of visual details is regarded as a local issue. The detailed layer obtained using a spatial filter is adaptively enhanced according to the mapping function used for the base layer. The main contributions of our algorithm are that: (1) an adaptive detail-enhancement method is proposed and (2) a gain map is defined to combine the local and global issues. Experimental results show the superior performance of our approach in terms of visual quality.
Original languageEnglish
Pages (from-to)397-405
Number of pages9
JournalJournal of Visual Communication and Image Representation
Volume18
Issue number5
DOIs
Publication statusPublished - 1 Oct 2007

Keywords

  • High-dynamic range image
  • Tone mapping
  • Tone reproduction

ASJC Scopus subject areas

  • Signal Processing
  • Media Technology
  • Computer Vision and Pattern Recognition
  • Electrical and Electronic Engineering

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