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Using sinusoidal spectral power distributions to evaluate color scanning filters
Author(s) -
Kotera Hiroaki,
Fumoto Teruo,
Yoshida Kunio
Publication year - 1998
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/1.1985255
Subject(s) - filter (signal processing) , sine , mathematics , sine wave , computer science , raised cosine filter , filter design , computer vision , prototype filter , acoustics , physics , quantum mechanics , geometry , voltage
— We demonstrate a method for evaluating the quality of color scanning‐filter sets that use sinusoidal spectral power distributions (sine SPDs) instead of physical test targets. Filter quality is quantified as the mean square error of the filter sets' responses to the fundamental metamers of sine SPDs having varying frequency and phase, relative to a perfect filter set. Filter quality is also depicted graphically by plotting filter input versus output in CIELAB color space, and by plotting the magnitude of the filters' CIELAB color vector response to sine SPDs. The advantages of this approach to scanning‐filter evaluation are discussed.