Computer Laboratory

Technical reports

Flash-exposure high dynamic range imaging: virtual photography and depth-compensating flash

Christian Richardt

March 2008, 9 pages

Abstract

I present a revised approach to flash-exposure high dynamic range (HDR) imaging and demonstrate two applications of this image representation. The first application enables the creation of realistic ‘virtual photographs’ for arbitrary flash-exposure settings, based on a single flash-exposure HDR image. The second application is a novel tone mapping operator for flash-exposure HDR images based on the idea of an ‘intelligent flash’. It compensates for the depth-related brightness fall-off occurring in flash photographs by taking the ambient illumination into account.

Full text

PDF (2.6 MB)

BibTeX record

@TechReport{UCAM-CL-TR-712,
  author =	 {Richardt, Christian},
  title = 	 {{Flash-exposure high dynamic range imaging: virtual
         	   photography and depth-compensating flash}},
  year = 	 2008,
  month = 	 mar,
  url = 	 {http://www.cl.cam.ac.uk/techreports/UCAM-CL-TR-712.pdf},
  institution =  {University of Cambridge, Computer Laboratory},
  number = 	 {UCAM-CL-TR-712}
}