Abstract
We present a theoretical framework for object-based segmentation of color images
that extracts the uniformly colored regions on an arbitrary surface all the
points of which are exposed to the same set of light sources. This segmentation
is a necessary stage before shape-from-shading processing. We introduce a
consistent definition of rank and provide a complete classification of
interactions among shape, surface color, and illumination. The proposed theory
is an extension of known approaches.
© 1994 Optical Society of America
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