NDLI: A New Chromatic Adaptation Model for Different Illuminations

Content Provider	IEEE Xplore Digital Library
Author	Wan Xiaxia Xie Dehong
Copyright Year	2008
Description	Author affiliation: Dept. of Printing & Packaging, Wuhan Univ., Wuhan (Wan Xiaxia; Xie Dehong)
Abstract	Illumination of a view environment illuminated by different illuminants can vary dramatically, which includes both the physical intensity (or luminance ) of the illumination and the chromaticity of the illumination. Several visual experiments show that Changes in illumination can cause the appearance of a color viewed under the corresponding illuminant to change. But dynamic mechanism of human visual system (HVS) has an ability of adaptation, which optimizes the visual response to particular view condition of illumination so that color appearance of the color object under different illuminants could be similar or same depending on the degree of adaptation of human view system. In some literatures, many chromatic adaptation models were proposed as the dynamic mechanism of the human view system. However, according to the studies of biopsychology and anatomy, changes of the range and the gain in cone sensitivity with wavelength intricately are both caused by changes of luminance of the illuminant. That is, luminance of the illuminant not only can influence the quantity of cones response but also can modify the spectral distribution of cones response of human eyes. So the paper proposes a new chromatic adaptation model which bases on eye's adaptation of luminance and chromaticity with changes of illumination. The results of experiments are carried out to assess the performance of the proposed model by comparing that of CIECAT97[3] and CIECAT2000 [4] chromatic models.
Starting Page	38
Ending Page	41
File Size	291002
Page Count	4
File Format	PDF
ISBN	9780769533360
DOI	10.1109/CSSE.2008.584
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-12-12
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Printing luminance HVS Adaptation model Humans Mathematics Anatomy chromatic adaptation Software packages Biopsy Lighting chromaticity Packaging Testing
Content Type	Text
Resource Type	Article

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