Robust 2D Otsu’s Algorithm for Uneven Illumination Image Segmentation

Table 3

DSC values of each algorithm on real world uneven illumination images.

Image	Original 2D Otsu	MAOTSU_2D	Cao’s	DVE	Proposed scheme 1	Proposed scheme 2
#1	0.9755	0.9747	0.9773	0.8032	0.9836	0.9817
#2	0.8710	0.8709	0.9645	0.9815	0.9870	0.9796
#3	0.6857	0.6732	0.6682	0.7132	0.7701	0.7759
#4	0.6753	0.6688	0.6604	0.774	0.9505	0.8789
#5	0.9170	0.9180	0.9074	0.8803	0.9207	0.9290
#6	0.7306	0.7338	0.7265	0.7537	0.7100	0.7361
#7	0.3207	0.3162	0.2964	0.3741	0.3408	0.7015
Avg.	0.7394	0.7365	0.7430	0.7543	0.8090	0.8547

Bold values represent the best DSC values among all the compared algorithms.