Table 3.

Entropy for the cryptogram of Lena RGB image $512\times 512\times 3$ using n processes and Tinkerbell map [73].

Cryptogram Size $512\times 512\times 3$		Components RGB of 8 bit Entropy (bit/symbol)
n Process	Average Entropy (%)	R	G	B
FIAD cluster, CPU 1.2 GHz
1	7.9992743	7.9992716	7.9992623	7.9992888
2	7.9992962	7.9992525	7.9993085	7.9993277
4	7.9992476	7.9992258	7.9992211	7.9992959
8	7.9992692	7.9991658	7.9993238	7.9993182
16	7.9992042	7.9991641	7.9992064	7.9992421
32	7.9992992	7.9991472	7.9993798	7.9993705
64	7.9992831	7.9992403	7.9993189	7.9992901
128	7.9993141	7.9992695	7.9992722	7.9994006
CPU 2.7 GHz
1	7.9992742	7.9992716	7.9992623	7.9992888
2	7.9992962	7.9992525	7.9993085	7.9993276
4	7.9992476	7.9992258	7.9992210	7.9992959
8	7.9992692	7.9991657	7.9993237	7.9993181
16	7.9992041	7.9991640	7.9992063	7.9992421
32	7.9992991	7.9991472	7.9993798	7.9993704
64	7.9992831	7.9992403	7.9993188	7.9992901
128	7.9993140	7.9992695	7.9992721	7.9994006