Table 2.

Correlation between connected region density value, color feature value and GLCM value

Parameter	A1	A2	mR	mG	mB	sR	sG	sB	sH	sS	sI
A1	1.000	0.799**	0.309	0.290	0.282	− 0.067	0.065	0.311	− 0.098	0.104	0.300
A2	0.799**	1.000	0.414*	0.374	0.358	− 0.093	0.070	0.402*	− 0.130	0.126	0.397
mR	0.309	0.414*	1.000	0.896**	0.788**	0.000	0.298	0.940**	− 0.094	0.406	0.987**
mG	0.290	0.374	0.896**	1.000	0.918**	0.252	0.062	0.979**	0.155	0.103	0.940**
mB	0.282	0.358	0.788**	0.918**	1.000	0.473*	− 0.251	0.938**	0.388	− 0.153	0.847**
sR	− 0.067	− 0.093	0.000	0.252	0.473*	1.000	− 0.757**	0.249	0.991**	− 0.747**	0.102
sG	0.065	0.070	0.298	0.062	− 0.251	− 0.757**	1.000	0.044	− 0.787**	0.955**	0.229
sB	0.311	0.402	0.940**	0.979**	0.938**	0.249	0.044	1.000	0.154	0.134	0.972**
sH	− 0.098	− 0.130	− 0.094	0.155	0.388	0.991**	− 0.787**	0.154	1.000	− 0.780**	0.008
sS	0.104	0.126	0.406	0.103	− 0.153	− 0.747**	0.955**	0.134	− 0.780**	1.000	0.325
sI	0.300	0.397	0.987**	0.940**	0.847**	0.102	0.229	0.972**	0.008	0.325	1.000
MaxP	0.349	0.419*	0.698**	0.716**	0.808**	0.216	− 0.212	0.772**	0.130	− 0.056	0.694**
Corr	− 0.501**	− 0.680**	− 0.326	− 0.310	− 0.250	− 0.005	− 0.164	− 0.311	0.011	− 0.172	− 0.334
Con	0.570**	0.740**	0.409	0.444*	0.426*	0.101	0.031	0.446*	0.073	0.061	0.430*
Asm	0.126	0.114	0.249	0.321	0.536**	0.301	− 0.411	0.378	0.261	− 0.356	0.258
Hom	− 0.419*	− 0.556**	− 0.468*	− 0.399	− 0.251	0.019	− 0.337	− 0.397	0.055	− 0.320	− 0.460*
Ent	0.277	0.408	0.378	0.377	0.213	0.040	0.329	0.342	0.016	0.258	0.400

^**Correlation is significant at the 0.01 level (two-tailed)

^*Correlation is significant at the 0.05 level (two-tailed)