Recursive Algorithms of Maximum Entropy Thresholding on Circular Histogram

Table 2

Comparison of pixel accuracy value for different methods.

Image number	Method 3	Method 4	Method 5	Method 6
a	0.9897	0.9881	0.9564	0.9881
b	0.9010	0.8865	0.7984	0.8865
c	0.8687	0.9497	0.8853	0.9497
d	0.8906	0.8915	0.7444	0.8915
e	0.8399	0.8751	0.8449	0.8751
f	0.9228	0.9306	0.8696	0.9306
g	0.9933	0.9937	0.9870	0.9937
h	0.9664	0.9706	0.9496	0.9706
Average value	0.9215	0.9357	0.8795	0.9357