Color vision in the comb frequency domain
نویسندگان
چکیده
منابع مشابه
Color vision in the comb frequency domain.
In 1982, Horace Barlow considered the question of human trichromacy in the context of information theory: according to the Sampling Theorem, three types of receptors covering the visible spectrum (400-700 nm) might be sufficient to reconstruct the color signal. Although Barlow was led to reject the direct application of the Sampling Theorem to explain color dimensionality, the theoretical frame...
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Scanning a halftone image introduces halftone artifacts, known as Moire patterns, which significantly degrade the image quality. Printers that use amplitude modulation (AM) screening for halftone printing position dots in a periodic pattern. Therefore, frequencies relating half toning arc easily identifiable in the frequency domain. This paper proposes a method for de screening scanned color ha...
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Axel Ruehl,1,* Michael J. Martin,2 Kevin C. Cossel,2 Lisheng Chen,2 Hugh McKay,1 Brian Thomas,1 Craig Benko,2 Liang Dong,1,† John M. Dudley,3 Martin E. Fermann,1 Ingmar Hartl,1 and Jun Ye2 1IMRA America Inc., 1044 Woodridge Avenue, Ann Arbor, Michigan 48105, USA 2JILA, National Institute of Standards and Technology and University of Colorado, Department of Physics, 440 UCB, Boulder, Colorado 80...
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ژورنال
عنوان ژورنال: Biological Research
سال: 2003
ISSN: 0716-9760
DOI: 10.4067/s0716-97602003000100011