通过利用整数5/3小波变换,对木材纹理进行多尺度分解,利用特征参数分析了木材纹理频率分布特征,比较了针叶材与阔叶材、径向与弦向切面的木材纹理的差异。实验结果表明,利用整数5/3小波变换,分析各子图像能量值的标准差,筛选出木材纹理最佳分解尺度为2,同时还发现小波能量分布比例和EHL/ELH值可作为木材纹理方向性参数。
Two methods are used to compare the wood texture difference between softwood and hardwood, between the radial section and chord wise section. Integer (5/3) wavelet transformation is used to multi -scale decomposition the wood texture, and characteris- tic parameter is to analyze the spectral distribution feature of wood texture. Based on integer (5/3) wavelet transform, the best decom- position size 2 is screened out from the standard deviation analyses of sub - images energy value, meanwhile, wavelet energy distribu- tion proportion and EHL/ELH value are found that can be conducted as wood texture directionality parameters.