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

Table 2

ME 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	0.0404	0.0418	0.0413	0.2945	0.0269	0.0298
#2	0.2056	0.2058	0.0596	0.0303	0.0233	0.0370
#3	0.3512	0.3618	0.3659	0.3274	0.2745	0.2690
#4	0.3995	0.4053	0.4137	0.3336	0.0816	0.1790
#5	0.0808	0.0798	0.0893	0.1125	0.0774	0.0699
#6	0.0349	0.0339	0.0352	0.0229	0.0380	0.0336
#7	0.6754	0.6808	0.7771	0.5149	0.5970	0.1168
Avg.	0.2554	0.2585	0.2546	0.2337	0.1598	0.1050

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