Ldr2Hdr: on-the-fly reverse tone mapping of legacy video and photographs (2007)
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| Venue: | In SIGGRAPH ’07: ACM SIGGRAPH 2007 papers |
| Citations: | 32 - 3 self |
BibTeX
@INPROCEEDINGS{Rempel07ldr2hdr:on-the-fly,
author = {Allan G. Rempel and Matthew Trentacoste and Helge Seetzen and H. David Young and Wolfgang Heidrich and Lorne Whitehead and Greg Ward},
title = {Ldr2Hdr: on-the-fly reverse tone mapping of legacy video and photographs},
booktitle = {In SIGGRAPH ’07: ACM SIGGRAPH 2007 papers},
year = {2007},
publisher = {ACM Press}
}
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Abstract
brightness enhancement function computed by our method. Center right: two virtual exposures of the resulting HDR image with a contrast of 9300: 1. Right: the same image shown on an HDR display, using a 10 % semi-transparent filter to show details in bright regions. New generations of display devices promise to provide significantly improved dynamic range over conventional display technology. In the long run, evolving camera technology and file formats will provide high fidelity content for these display devices. In the near term, however, the vast majority of images and video will only be available in low dynamic range formats. In this paper we describe a method for boosting the dynamic range of legacy video and photographs for viewing on high dynamic range displays. Our emphasis is on real-time processing of video streams, such as web streams or the signal from a DVD player. We place particular emphasis on robustness of the method, and its ability to deal with a wide range of content without user adjusted parameters or visible artifacts. The method can be implemented on both graphics hardware and on signal processors that are directly integrated in the HDR displays.
Keyphrases
legacy video on-the-fly reverse tone mapping dynamic range hdr display display device new generation web stream high dynamic range display real-time processing file format hdr image bright region video stream vast majority long run low dynamic range format semi-transparent filter dvd player graphic hardware high fidelity content conventional display technology near term visible artifact brightness enhancement function virtual exposure signal processor wide range camera technology particular emphasis
