Inverse tone mapping

Banterle Francesco, Ledda Patrick, Debattista Kurt, Chalmers Alan

Research output: Contribution to journalArticle (Academic Journal)

132 Citations (Scopus)

Abstract

In recent years many Tone Mapping Operators (TMOs) have been presented in order to display High Dynamic Range Images (HDRI) on typical display devices. TMOs compress the luminance range while trying to maintain contrast. The dual of tone mapping, inverse tone mapping, expands a Low Dynamic Range Image (LDRI) into a HDRI. HDRIs contain a broader range of physical values that can be perceived by the human visual system. The majority of today's media is stored in low dynamic range. Inverse Tone Mapping Operators (iTMOs) could thus potentially revive all of this content for use in high dynamic range display and image-based lighting. We propose an approximate solution to this problem that uses median-cut to find the areas considered of high luminance and subsequently apply a density estimation to generate an Expand-map in order to extend the range in the high luminance areas using an inverse Photographic Tone Reproduction operator.
Translated title of the contributionInverse tone mapping
Original languageEnglish
Pages (from-to)349 -356
JournalProceedings of the 4th international conference on Computer graphics and interactive techniques in Australasia and Southeast Asia
Publication statusPublished - 2006

Bibliographical note

ISBN: 1595935649
Publisher: ACM Press
Name and Venue of Conference: Proceedings of the 4th international conference on Computer graphics and interactive techniques in Australasia and Southeast Asia
Other identifier: 2000616

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