D65和A光源下绿色硅化木的光源客观效应分析

AN ANALYSIS OF THE OBJECTIVE LIGHT EFFECT OF GREEN SILICIFIED WOOD UNDER D65 AND A LIGHT SOURCES

基于CIE 1976 L^(*)a^(*)b^(*)均匀色空间,在相同背景下选取D65和A光源作为实验光源,采用测色仪定量测试绿色硅化木明度值L^(*)和色品a^(*)、b^(*),并计算其彩度值C^(*)、色调角h_(0)、色差值ΔE_(00),再将数据进行统计分析以研究这两种光源下绿色硅化木的光源客观效应。结果表明:D65光源下绿色硅化木的明度值较高、色差值较大且该光源对色调的影响较小,因而是绿色硅化木颜色评价的适宜照明光源;A光源大幅度提升了绿色硅化木的彩度值,更适用于销售和展示。

Based on the CIE 1976 L^(*)a^(*)b^(*)uniform color space,choose D65 and A light sources as experimental light source under the same background,the brightness L^(*),chromaticity a^(*)and b^(*)of of green silicified wood are quantitatively measured with the colorimeter and the chroma C^(*),hue angle h_(0) and color difference value△E_(00) calculated,then the statistical analysis of data is carried out in order to study the objective effect of green silicified wood under these 2 light sources.The results show that the brightness of green silicified wood ishigher under D65light resource,the color difference value is larger and the influence on hue is little,so it is the suitable illumination light source for color valuation of green silicified wood.The light source A greatly improves the chroma value of green silicified wood,which is more suitable for sale and display.