Application of coupled map lattice with parameter q in image encryption

作者：Zhang Hao; Wang Xing-yuan^*; Wang Si-wei; Guo Kang; Lin Xiao-hui

来源：Optics and Lasers in Engineering, 2017, 88: 65-74.

DOI：10.1016/j.optlaseng.2016.07.004

• Image encryption
• Coupled map lattice
• Bifurcation
• Predictor-corrector
• Fractional calculus

In this paper, a novel coupled map lattice (CML) with parameter q is applied to image encryption to get higher security. The CML with parameter q is provided with Euler method and Adams-Bashforth-Moulton predictor-corrector method. In the new CML, dynamical properties are improved because the coupled strength can decrease the periodic dynamical behaviors which are caused by finite-precision. What's more, the CML changes system parameters from one-dimensional to two-dimensional. Two-dimensional parameters and coupling strengths provide researchers a possibility to improve the performance in image encryption. Finally, from numerical simulation results, it can be found that the CML improves the effectiveness and security.

• 出版日期2017-1
• 单位大连理工大学