Table 2.

The p values of the pairwise one-tailed t-tests of LSACM-SP and other optic disc segmentation approaches on DI.

Methods	p values (DRISHTI-GS)	Methods	p values (RIM-ONE r2)
LSACM-SP vs. GVF	3.43e − 05	LSACM-SP vs. GVF	1.37e − 06
LSACM-SP vs. C-V	3.44e − 05	LSACM-SP vs. C-V	2.80e − 05
LSACM-SP vs. LIC	1.35e − 04	LSACM-SP vs. LIC	5.35e − 05
LSACM-SP vs. superpixel	8.90e − 04	LSACM-SP vs. superpixel	6.32e − 04
LSACM-SP vs. LSACM	4.34e − 03	LSACM-SP vs. LSACM	8.73e − 04