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采用测色色差计对中国110种商品材树种的木材表面材色参数进行测量,讨论了这些参数的色空间分布特征,其结果(除去一个黑颜色树种乌木)为:明度指数分布范围较宽(L*为30—90;V为2~8),色品指数和色调值参数分布范围较窄(a*为-2~20;b*为0~30;H为2.5R~5Y,大部分分布在YR色调系内),饱和度分布范围不宽(C*为4~6;C为0.8~6.4)。其中针叶树材分布范围较窄,且多分布在高明度范围,并对110树种的木材表面光泽度(镜面反射60°)分顺纹理和垂直纹理两个方向进行了测量和分布特征解析。无涂饰木材表面镜面反射光泽度较低,大多分布于10%以下的范围,分布中心在5%左右。顺纹理入射与垂直纹理入射条件下的光泽度相比,前者较大,两者之间具有高度的相关性,其关系可用线性方程式表达。
The color parameters of the timber surface of 110 timber species in China were measured by colorimetric chromatic aberration meter, and the color space distribution characteristics of these parameters were discussed. The results (except for a black color tree species Ebony) were as follows: the lightness index distribution range was wide L * is from 30 to 90; V is from 2 to 8), the chromaticity index and tonal values have a narrower distribution of parameters (a * is from -2 to 20; b * is from 0 to 30; H is from 2.5R to 5Y Part of the distribution in the YR hue system), the saturation distribution range is not wide (C * is 4 ~ 6; C is 0.8 ~ 6.4). The distribution range of coniferous trees is narrow and distributed in the range of high lightness. The wood surface glossiness (specular reflection 60 °) of the tree species was measured and distributed in both directions along the grain and the vertical. Uncoated wood surface mirror low gloss, mostly distributed in the range of 10%, the distribution center at about 5%. Compared with the normal texture under normal incidence conditions, the former is larger and the latter one is highly correlated. The relationship can be expressed by the linear equation.