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AFRIGRAPH
2004
ACM

A local model of eye adaptation for high dynamic range images

10 years 5 months ago
A local model of eye adaptation for high dynamic range images
In the real world, the human eye is confronted with a wide range of luminances from bright sunshine to low night light. Our eyes cope with this vast range of intensities by adaptation; changing their sensitivity to be responsive at different illumination levels. This adaptation is highly localized, allowing us to see both dark and bright regions of a high dynamic range environment. In this paper we present a new model of eye adaptation based on physiological data. The model, which can be easily integrated into existing renderers, can function either as a static local tone mapping operator for single high dynamic range image, or as a temporal adaptation model taking into account time elapsed and intensity of preadaptation for a dynamic sequence. We finally validate our technique with a high dynamic range display and a psychophysical study. Categories and Subject Descriptors I.3.3 [Computer Graphics]: Picture/Image Generation— Display Algorithms Keywords Human Visual System, Eye Ada...
Patrick Ledda, Luís Paulo Santos, Alan Chal
Added 30 Jun 2010
Updated 30 Jun 2010
Type Conference
Year 2004
Where AFRIGRAPH
Authors Patrick Ledda, Luís Paulo Santos, Alan Chalmers
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