Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 1 Principal component analysis loadings using the “0° + 90°” feature set calculated with d = 5 from the data set treated with MF_{r = 1}

From: Texture analysis of stereograms of diffuse-porous hardwood: identification of wood species used in Tripitaka Koreana

	PC1	PC2	PC3		PC1	PC2	PC3
asm^*1_0°	–0.934	–0.062	0.028	den^*9_0°	0.973	0.049	0.020
asm_90°	–0.934	–0.046	–0.093	den_90°	0.939	–0.145	0.147
con^*2_0°	0.924	0.119	0.039	dva^*10_0°	0.920	0.127	0.036
con_90°	0.901	–0.191	0.137	dva_90°	0.901	–0.189	0.136
idm^*3_0	–0.950	0.056	0.055	sva^*11_0°	0.295	–0.627	–0.714
idm_90°	–0.912	0.261	–0.163	sva_90°	0.244	–0.616	–0.745
ent^*4_0°	0.987	0.097	–0.017	f12_0°	–0.856	0.129	–0.033
ent_90°	0.976	0.089	0.015	f12_90°	–0.412	0.723	–0.452
cor^*5_0°	–0.740	0.162	–0.103	f13_0°	–0.759	0.242	–0.113
cor_90°	–0.499	0.693	–0.332	f13_90°	–0.396	0.752	–0.448
var^*6_0°	0.888	0.379	–0.095	sha^*12_0°	0.080	0.832	–0.096
var_90°	0.889	0.378	–0.097	sha_90°	–0.064	0.872	–0.152
sav^*7_0°	0.157	–0.697	–0.696	pro^*13_0°	0.688	0.594	–0.226
sav_90°	0.155	–0.696	–0.697	pro_90°	0.459	0.793	–0.344
sen^*8_0°	0.926	0.269	–0.106
sen_90°	0.752	0.553	–0.207

The absolute values above 0.6 are shown in bold
^*1Angular second moment, ^*2contrast, ^*3inverse difference moment, ^*4entropy, ^*5correlation, ^*6variance, ^*7sum average, ^*8sum entropy, ^*9difference entropy, ^*10difference variance, ^*11sum variance, ^*12shade, ^*13prominence

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