基于量化可见光特征的酸枝木类木材树种识别  

Identification of rosewood based on visible spectrum characteristics

作　　者：张蓉[1] 徐魁梧[1] 张杰[1] 

机构地区：[1]南京林业大学木材工业学院,南京210037

出　　处：《林业科技开发》2013年第3期96-99,共4页China Forestry Science and Technology

基　　金：江苏高校优势学科建设工程资助项目(PAPD)

摘　　要：以LCH颜色空间为表征系统,研究了以量化的可见光特征为依据的酸枝木类木材树种识别方法,并建立识别模型。结果表明:试验树种的L值分布范围在32.217～41.097之间,处在明度中等偏暗的阶段;C值分布范围在6.261～29.098之间,处在饱和度中等到低的阶段;除卢氏黑黄檀H值为22.246左右,色相偏向玫红色外,其余树种分布范围在41.679～51.674之间,基本处在大红色区域。在α=0.05差异显著性水平下,树种间明度差异显著性比例为71.5%,饱和度差异显著性比例为72.8%,色相差异显著性比例为43.8%,总体差异显著性比例92.9%。明度和饱和度是影响木材树种识别的主要因素,色相是次要因素。以量化的可见光特征为依据的酸枝木类木材树种识别方法基本可行。Rosewood identification was studied by means of color measurement in CIE LCH color space. The results showed that the lightness （L） of the samples, which varied between 32. 217 and 41. 097, was in moderate light to dark region. The chroma （C） was between 6. 261 and 29. 098, indicating medium to less saturated color of the samples. The hue （H） of most tested species ranged from 41. 679 to 51. 674. The exception was Dalbergia. louvelii. , which exhibited a more reddish appearance with a H value of 22. 246. Analysis of variance （ ct = 0.05 ） showed that interspecies lightness difference was significant in 71.5% samples. The chroma and hue differences were significant in 72.8% and 43.8% samples respective- ly, and 92.9% samples showed significant interspecies color difference. Lightness and chroma are dominating factors in wood identification, while hue is of less importance. It can be concluded that rosewood identification by means of color measurement is basically feasible.

关 键 词：可见光谱 LCH颜色系统 木材识别 

分 类 号：S781.3[农业科学—木材科学与技术]