Dominant Wavelength and Color Purity of Tujia Brocade Color under Different Illuminants
QIN Yan
YANG Xiaoli
XU Yu
FAN Xiaogang
Abstract：Dominant wavelength and excitation purity can make specific impression on observers when they are used to represent chromaticity.From the perspective of combining physical measurement with vis-ual perception,the dominant wavelength and excitation purity of Tujia Brocade color were analysed under six kinds of illuminants.Based on the best color stability and the minimum color difference,we get a set of dominant wavelength and excitation purity as the frequently-used chromaticity database to describe Tujia brocade color.The color spectral reflectance of Xilankapu was acquired by a spectrophotometer,and the dominant wavelength and excitation purity of every color sample was calculated under 6 kinds of standard illuminant. After comparing coefficient of variation and referring to the distribution of color samples in the chromaticity diagram under different illuminants,the result shows that 97.1% of typical color samples per-form minimum difference when it is under illuminant D50. Therefore,using the dominant wavelength and excitation purity under illuminant D50 to describe the typical color information for Xilankapu is the best model,and there is minimum difference with observer′s impression.
Keywords：Tujia brocadedominant wavelengthexcitation puritycolor differencecoefficient of variation
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 402-407 )