Image Encryption Algorithm Based on a Hyperchaotic System and Fractional Fourier Transform
Yang Liu · Journal of Advanced Computational Intelligence and Intelligent Informatics · 2019
An image encryption scheme that combines a hyperchaotic system with standard weighted fractional Fourier transform theory is proposed. Simulation results showed that grayscale distribution of the encrypted image was balanced, correlation coefficients of adjacent pixels were highly irrelevant, and the encrypted image was highly sensitive to the secret key, offering good robustness against attacks and a larger key space.