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

Table 1

ME and DSC values of each algorithm on synthetic and real world images.

	ME and DSC
	Synthetic image	Real world image (rice)
Original 2D Otsu	0.2806, 0.7097	0.0524, 0.9074
MAOTSU_2D	0.2774, 0.7121	0.0527, 0.9077
Cao’s	0.1397, 0.7839	0.0686, 0.8750
DVE	0.4359, 0.6425	0.0399, 0.9330
Proposed scheme 1	0.0284, 0.9625	0.0425, 0.9267
Proposed scheme 2	0.1232, 0.8154	0.0512, 0.9141

Bold values represent the best evaluation metric values among all the compared algorithms.