Image Encryption Performance Evaluation Based on Poker Test

Table 5

Performance ranking of cipher text image by descending order in Figure 3 with normalized autocorrelation in different directions.

Ranking number	Horizontal	Vertical	Diagonal
1	10	11	11
2	5	6	7
3	11	12	9
4	6	7	4
5	3	10	6
6	9	4	5
7	4	5	10
8	8	9	12
9	12	13	8
10	7	8	3
11	2	3	13
12	13	14	2
13	1	2	14
14	14	1	1