A new color image encryption using 2D improved logistic coupling map

This paper proposes a new 2D-ILCM (Two Dimension Improved Logistic Coupling Map) based on preceding works and performed the performance evaluation. Experimental results show that the proposed 2D-ILCM has better chaotic characteristics than the existing 2D chaotic maps. In order to confirm the application of the proposed 2D-ILCM to image encryptions, we propose a new image encryption algorithm which is simple in structure and combines bit level permutation, and pixel level diffusion and confirm the performance through experiments. Experimental results show that the proposed algorithm is robust to attacks and gives a good performance.