A Novel Image Encryption Algorithm based on Hybrid Cellular Automata

In this paper, a new structure for image encryption using hybrid cellular automata is presented. The image encryption is done in two steps. At the first step, each pixel is encrypted by rules of hybrid cellular automata. In the next step, each pixel converted to a binary number and each bit is encrypted by rules of cellular automata. The rules are made by a function. Due to reversibility of cellular automata, the decryption of the image is possible by doing the steps reversely. The experimental results show that this algorithm has satisfactory performance in terms of quantitative assessment.