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42‐1: Invited Paper: Bit‐Depth Constrained Black Level for High Dynamic Range Displays
Author(s) -
Boitard Ronan,
Ploumis Stelios,
Damberg Gerwin,
Ballestad Anders
Publication year - 2019
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.12985
Subject(s) - high dynamic range , luminance , dynamic range , computer science , computer vision , range (aeronautics) , pixel , tone mapping , artificial intelligence , computer graphics (images) , display device , bit (key) , signal (programming language) , shadow (psychology) , wide dynamic range , depth perception , perception , materials science , psychology , computer security , neuroscience , psychotherapist , composite material , biology , programming language , operating system
High Dynamic Range (HDR) workflows provide increased peak luminance and lower black levels leading to a significantly enhanced quality of experience. HDR pixels also represent more tonal values across the dynamic range by using a higher bit‐depth along with different perceptual transfer functions. However, many light emitting display devices modulate light using a limited bit‐depth in the linear domain. It is thus challenging for such display systems to achieve simultaneously high peak luminance and high amount of information in the shadows. In this paper, we assess the required bit‐depth to accurately reproduce the shadow information of an HDR signal for different display capabilities.