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Lightness, Brightness and Transparency (Paperback)
Loot Price: R1,710
Discovery Miles 17 100
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Lightness, Brightness and Transparency (Paperback)
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This volume deals with the visual perception of lightness,
brightness, and transparency of surfaces, both under minimal
laboratory conditions and in complex images typical of everyday
life. Each chapter analyzes the challenging problem of how a
pattern of light intensities on the retina is transformed into the
visual experience of varying shades of grey, transparent surfaces,
and light and shadow. One important theme which unifies the group
of contributions is the recognition that the perception of surface
lightness is rooted fundamentally in the encoding of relative
intensities of light within the retinal image, not intensities per
se. A second important unifying theme is an appreciation of the
multiple dimensions of the visual experience of lightness,
brightness, and transparency -- people do not perceive the
lightness of surfaces by discarding information concerning the
light illuminating those surfaces; rather, they perceive a pattern
of illumination projected onto a pattern of surface greys. The
long-fascinating problems of surface lightness and color perception
have become very active topics recently as a resurging interest
within the visual perception community has coincided with an
increasing appreciation of the centrality of these problems by the
emerging machine vision community. The best of recent
psychophysical work on lightness perception, as presented in this
volume, will be of great interest to both of these communities.
This book also marks a synthesis of old and new. A traditional,
strongly Gestalt, approach that had fallen into neglect is updated
in the light of new quantitative systematic methods and important
later discoveries, such as the disappearance of stabilized retinal
images. The book draws on such diverse approaches as Gestalt and
ecological psychology, threshold psychophysics, and computational
vision, advancing our understanding of the interrelations among
surface color, illumination, perceived depth, shading, and
transparency.
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