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

Daniel Tamburrino; David Alleysson; Laurence Meylan; Sabine Süsstrunk

doi:10.1117/12.767728

3 March 2008 Digital camera workflow for high dynamic range images using a model of retinal processing

Daniel Tamburrino, David Alleysson, Laurence Meylan, Sabine Süsstrunk

Proceedings Volume 6817, Digital Photography IV; 68170J (2008) https://doi.org/10.1117/12.767728
Event: Electronic Imaging, 2008, San Jose, California, United States

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.

Citation Download Citation

Daniel Tamburrino, David Alleysson, Laurence Meylan, and Sabine Süsstrunk "Digital camera workflow for high dynamic range images using a model of retinal processing", Proc. SPIE 6817, Digital Photography IV, 68170J (3 March 2008); https://doi.org/10.1117/12.767728

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