Shanmuganathan RAMAN, Subhasis CHAUDHURI
Indian Institute of Technology Bombay, Mumbai 400 076, India
Abstract-While capturing a real world scene using a common di gital camera, due to limitations of the sensor dynamic range, we will not be abl e to capture the entire dynamic range of the scene. This problem is evident whil e capturing a picture of a scene which has both brightly and poorly illuminated regions. High Dynamic Range (HDR) imaging aims to recover the entire dynamic ran ge of the scene by compositing multi-exposure images. Tone reproduction is requ ired for displaying HDR images as the corresponding Low Dynamic Range(LDR) imag es on common displays. This paper discusses novel approaches to reconstruct LDR images directly from multi-exposure images. It is assumed that there is no kno wledge of camera response function and other camera settings. At last, it is exp lained how this task can be achieved effectively for static and dynamic scenes.
Key words-computational photography； HDR imaging； dig ital compositing
Manuscript Number: 1674-8042(2010)01-0032-05
dio: 10.3969/j.issn.1674-8042.2010.01.06
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