Masaru Takeya,Chawan Koopipat, Hideki Sato,
Norimichi Tsumura, Hideaki Haneishi, and
Yoichi Miyake
Department of Information and Image Sciences,
Chiba University, Inage-ku, Chiba, Japan
Abstract
Relative amounts of pigments on an overhead
projector (OHP) sheet printed by laser printer
can be estimated by using spectral transmittance
at each pixel of an optical micrograph, and
the multi-layered pigments also can be separated
into each component. The ransmittance spectra
were estimated from multiband images by the
Wiener estimation method. In the experiment,
relative amounts of pigments printed by one
or two kinds of color pigments were estimated,
and overlapping magenta and yellow pigments
were separated into each category. The result
was accurate as compared with separation
based on RGB values.
Full paper ( to appeare )
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