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Proceedings Paper

Digital camera workflow for high dynamic range images using a model of retinal processing
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Paper Abstract

We propose a complete digital camera workflow to capture and render high dynamic range (HDR) static scenes, from RAW sensor data to an output-referred encoded image. In traditional digital camera processing, demosaicing is one of the first operations done after scene analysis. It is followed by rendering operations, such as color correction and tone mapping. In our workflow, which is based on a model of retinal processing, most of the rendering steps are performed before demosaicing. This reduces the complexity of the computation, as only one third of the pixels are processed. This is especially important as our tone mapping operator applies local and global tone corrections, which is usually needed to well render high dynamic scenes. Our algorithms efficiently process HDR images with different keys and different content.

Paper Details

Date Published: 3 March 2008
PDF: 12 pages
Proc. SPIE 6817, Digital Photography IV, 68170J (3 March 2008); doi: 10.1117/12.767728
Show Author Affiliations
Daniel Tamburrino, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
David Alleysson, Univ. Pierre-Mendès-France (France)
Laurence Meylan, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
Sabine Süsstrunk, Ecole Polytechnique Fédérale de Lausanne (Switzerland)

Published in SPIE Proceedings Vol. 6817:
Digital Photography IV
Jeffrey M. DiCarlo; Brian G. Rodricks, Editor(s)

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