Cellular Automata with Synthetic Image A Secure Image Communication with Transform Domain

Abstract

Image encryption has attained a great attention due to the necessity to safeguard confidential images. Digital documents, site images, battlefield photographs, etc. need a secure approach for sharing in an open channel. Hardware – software co-design is a better option for exploiting unique features to cipher the confidential images. Cellular automata (CA) and synthetic image influenced transform domain approach for image encryption is proposed in this paper. The digital image is initially divided into four subsections by applying integer wavelet transform. Confusion is accomplished on low – low section of the transformed image using CA rules 90 and 150. The first level of diffusion with consecutive XORing operation of image pixels is initiated by CA rule 42. A synthetic random key image is developed by extracting true random bits generated by Cyclone V field programmable gate array 5CSEMA5F31C6. This random image plays an important role in second level of diffusion. The proposed confusion and two level diffusion assisted image encryption approach has been validated through the entropy, correlation, histogram, number of pixels change rate, unified average change intensity, contrast and encryption quality analyses.

Image Processing Method Based on Chaotic Encryption and Wavelet Transform for Planar Design

“…Information hiding studies how to hide secret information in public information, and it can be subdivided into steganography and image techniques for digital graphic design. Steganography focuses on hiding the existence of information [5]. The compression of the digital video signal is based on the above two conditions, which makes the amount of video data to be greatly compressed, which is beneficial for transmission and storage.…”