Optical image encryption based on S-box transformation and fractional Hartley transform
Iqtadar Hussain · Journal of Vibration and Control · 2014
A novel technique for image encryption is established based on a two-dimensional generalization of a one-dimensional fractional Hartley transform that has been redefined in recent times in exploration of its inverse transform. The author encrypts the image by two fractional orders and random phase codes and substitution box transformation. Computer simulations are also presented to verify the possibility of the proposed scheme.