Technical Program

Paper Detail

Session:Poster Session
Location:Poster Area
Session Time:Wednesday, June 27, 15:40 - 17:00
Presentation Time:Wednesday, June 27, 15:40 - 16:40
Presentation: Poster
Paper Title: FULLY-AUTOMATIC INVERSE TONE MAPPING PRESERVING THE CONTENT CREATOR'S ARTISTIC INTENTIONS
Authors: Gonzalo Luzardo; Ghent University, Belgium 
 Jan Aelterman; Ghent University, Belgium 
 Hiep Luong; Ghent University, Belgium 
 Wilfried Philips; Ghent University, Belgium 
 Daniel Ochoa; ESPOL Polythecnic University, Ecuador 
 Sven Rousseaux; Vlaamse Radio -en Televisieomroeporganisatie, Belgium 
Abstract: High Dynamic Range (HDR) displays can show images with higher color contrast levels and peak luminosities than the common Low Dynamic Range (LDR) displays. However, most existing video content is recorded and/or graded in LDR format. To show this LDR content on HDR displays, a dynamic range expansion by using an Inverse Tone Mapped Operator (iTMO) is required. In addition to requiring human intervention for tuning, most of the iTMOs don't consider artistic intentions inherent to the HDR domain. Furthermore, the quality of their results decays with peak brightness above 1000 nits. In this paper, we propose a fully-automatic inverse tone mapping operator based on mid-level mapping. This allows expanding LDR images into HDR with peak brightness over 1000 nits, preserving the artistic intentions inherent to the HDR domain. We assessed our results using full-reference objective quality metrics as HDR-VDP-2.2 and DRIM. Experimental results demonstrate that our proposed method outperforms the current state of the art.