caa a22 4500 605541043 CHVBK 20210128100914.0 cr unu---uuuuu 210128e20150601xx s 000 0 eng 10.1007/s00371-015-1121-z doi (NATIONALLICENCE)springer-10.1007/s00371-015-1121-z Optimal exposure compression for high dynamic range content [Elektronische Daten] [Kurt Debattista, Thomas Bashford-Rogers, Elmedin Selmanović, Ratnajit Mukherjee, Alan Chalmers] High dynamic range (HDR) imaging has become one of the foremost imaging methods capable of capturing and displaying the full range of lighting perceived by the human visual system in the real world. A number of HDR compression methods for both images and video have been developed to handle HDR data, but none of them has yet been adopted as the method of choice. In particular, the backwards-compatible methods that always maintain a stream/image that allow part of the content to be viewed on conventional displays make use of tone mapping operators which were developed to view HDR images on traditional displays. There are a large number of tone mappers, none of which is considered the best as the images produced could be deemed subjective. This work presents an alternative to tone mapping-based HDR content compression by identifying a single exposure that can reproduce the most information from the original HDR image. This single exposure can be adapted to fit within the bit depth of any traditional encoder. Any additional information that may be lost is stored as a residual. Results demonstrate quality is maintained as well, and better, than other traditional methods. Furthermore, the presented method is backwards-compatible, straightforward to implement, fast and does not require choosing tone mappers or settings. Springer-Verlag Berlin Heidelberg, 2015 Debattista Kurt WMG, University of Warwick, Coventry, UK aut Bashford-Rogers Thomas WMG, University of Warwick, Coventry, UK aut Selmanović Elmedin University of Sarajevo, Sarajevo, Bosnia and Herzegovina aut Mukherjee Ratnajit WMG, University of Warwick, Coventry, UK aut Chalmers Alan WMG, University of Warwick, Coventry, UK aut The Visual Computer Springer Berlin Heidelberg 31/6-8(2015-06-01), 1089-1099 0178-2789 31:6-8<1089 2015 31 371 https://doi.org/10.1007/s00371-015-1121-z text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00371-015-1121-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Debattista Kurt WMG, University of Warwick, Coventry, UK aut NATIONALLICENCE 700 1- Bashford-Rogers Thomas WMG, University of Warwick, Coventry, UK aut NATIONALLICENCE 700 1- Selmanović Elmedin University of Sarajevo, Sarajevo, Bosnia and Herzegovina aut NATIONALLICENCE 700 1- Mukherjee Ratnajit WMG, University of Warwick, Coventry, UK aut NATIONALLICENCE 700 1- Chalmers Alan WMG, University of Warwick, Coventry, UK aut NATIONALLICENCE 773 0- The Visual Computer Springer Berlin Heidelberg 31/6-8(2015-06-01), 1089-1099 0178-2789 31:6-8<1089 2015 31 371