Table 2 Critical values for the exemplar encryption.

From: Novel structures of chaos-based parallel multiple image encryption and FPGA implementation

Highest parameter

Value

Unit

\(K_{max}\)

16

images

\(M_{max}\)

1024

rows

\(N_{max}\)

1024

columns

\(N_{pix\_max}\)

\(2^{10}\times 2^{10}\)

pixels

\(Q_{max}\)

24

bits