Research Article

An Efficient Diffusion Scheme for Chaos-Based Digital Image Encryption

Table 7

Entropies of plain images and cipher images.

Entropies of plain imagesEntropies of cipher images
Cat mapBaker mapStandard map

Lena7.4455687.9993707.9994247.999413
Baboon7.3579497.9993567.9991897.999342
Barb7.4664267.9993057.9993357.999355
Bridge5.7055607.9992877.9992977.999305
Peppers7.5714787.9993517.9993787.999371