Optical method for Images Encryption Based on Chaotic BakerMap and Double Random Phase Encoding

This paper presents a newoptical technique for image encryption based on chaotic Baker map and Double Random Phase Encoding (DRPE). This technique is implemented in two layers to enhance the security level of the classical DRPE. The first layer is a pre-processing layer, with the chaotic Baker map on the original image. In the second layer, the DRPE is utilized. Matlab simulation experiments show that the this technique enhances the security level of the DRPE, and at the same timeit has a better immunity to noise