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Effect of DLP projector white channel on perceptual gamut
Author(s) -
Heckaman Rodney L.,
Fairchild Mark D.
Publication year - 2006
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 - 10.1889/1.2358569
Subject(s) - gamut , digital light processing , projector , lightness , computer science , computer vision , computer graphics (images) , artificial intelligence , channel (broadcasting) , color space , color balance , color image , image processing , image (mathematics) , computer network
— The effect of white‐channel enhancement as implemented in the Texas Instrument DLP™ digital projector technology is evaluated theoretically using both the CIELAB and the CIECAM02 color appearance models and experimentally through psychophysical testing using real images. Both theory and test results confirm a compression of perceptual gamut in both chroma and colorfulness as a result of the added white channel. Hence, while this technology is ideal for viewing graphics and text under ambient conference‐room conditions where lightness contrast is important, it is necessarily less than ideal for viewing images or in home‐theater environments where color is important.