A Multiscale model of adaptation and spatial vision for realistic image display
Date
1998Author
Pattanaik, Sumanta
Ferwerda, James
Fairchild, Mark
Greenberg, Donald
Metadata
Show full item recordAbstract
In this paper we develop a computational model of adaptation and
spatial vision for realistic tone reproduction. The model is based
on a multiscale representation of pattern, luminance, and color processing
in the human visual system. We incorporate the model into
a tone reproduction operator that maps the vast ranges of radiances
found in real and synthetic scenes into the small fixed ranges available
on conventional display devices such as CRT’s and printers.
The model allows the operator to address the two major problems in
realistic tone reproduction: wide absolute range and high dynamic
range scenes can be displayed; and the displayed images match
our perceptions of the scenes at both threshold and suprathreshold
levels to the degree possible given a particular display device.
Although in this paper we apply our visual model to the tone reproduction
problem, the model is general and can be usefully applied
to image quality metrics, image compression methods, and
perceptually-based image synthesis algorithms.